JavaWeb_(SSH論壇)_6、點贊模塊

 

 

基於SSH框架的小型論壇項目　　

　　1、項目入門　　傳送門

　　2、框架整合　　傳送門

　　3、用戶模塊　　傳送門

　　4、頁面顯示　　傳送門

　　5、帖子模塊　　傳送門

　　6、點贊模塊　　傳送門

　　7、輔助模塊　　傳送門

 

聯合主鍵

　　建立praise表

 

 　　建立Praise.java和PrimaryKey.java並在Praise.hbm.xml中配置聯合組件

package com.Gary.domain;

import com.Gary.vo.PrimaryKey;

public class Praise {

    private PrimaryKey primaryKey;

    public PrimaryKey getPrimaryKey() {
        return primaryKey;
    }

    public void setPrimaryKey(PrimaryKey primaryKey) {
        this.primaryKey = primaryKey;
    }
    

}

Praise.java

 

package com.Gary.vo;


import java.io.Serializable;

import com.Gary.domain.Answer;
import com.Gary.domain.User;

public class PrimaryKey implements Serializable{
    private User user;
    private Answer answer;
    public User getUser() {
        return user;
    }
    public void setUser(User user) {
        this.user = user;
    }
    public Answer getAnswer() {
        return answer;
    }
    public void setAnswer(Answer answer) {
        this.answer = answer;
    }
    
}

PrimaryKey.java

 

    <!-- 類名-對應表名字 -->
    <class name="Praise" table="praise">
        <!-- 聯合主鍵的名字            聯合主鍵的類 -->
        <composite-id name="primaryKey" class="com.Gary.vo.PrimaryKey">
            <!-- primarykey中的屬性        對應數據庫中的列            屬性對應的類 -->
            <key-many-to-one name="user" column="userid" class="User"></key-many-to-one>
            <key-many-to-one name="answer" column="answerid" class="Answer"></key-many-to-one>
        </composite-id>    
    </class>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
    
<hibernate-mapping package="com.Gary.domain">
    
    <!-- 類名-對應表名字 -->
    <class name="Praise" table="praise">
        <!-- 聯合主鍵的名字            聯合主鍵的類 -->
        <composite-id name="primaryKey" class="com.Gary.vo.PrimaryKey">
            <!-- primarykey中的屬性        對應數據庫中的列            屬性對應的類 -->
            <key-many-to-one name="user" column="userid" class="User"></key-many-to-one>
            <key-many-to-one name="answer" column="answerid" class="Answer"></key-many-to-one>
        </composite-id>    
    </class>

</hibernate-mapping>

Praise.hbm.xml

 

 　　分析點贊功

　　detail.jsp

                                        <a href="${pageContext.request.contextPath }/PraiseAction_addPraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
                                            <span class="jieda-zan" type="zan">
                                                <i class="iconfont icon-zan"></i>
                                                <em>
                                                    <s:property value="#answer.agree" />
                                                </em>
                                            </span>
                                        </a>

 

　　Web層

    //添加贊
    public String addPraise() throws Exception{
        
        //確定能夠得到（用戶未登陸不能點贊，只有登陸後才能夠點贊）
        User user = (User) ActionContext.getContext().getSession().get("user");
        
        if(user == null)
        {
            ActionContext.getContext().put("error", "未登陸不容許點贊！！");
            return "error";
        }
        //根據answerid查找Answer對象
        Answer answer = answerService.findAnswerByIdReturnAnswer(answerid);
        //申明聯合主鍵
        PrimaryKey primaryKey = new PrimaryKey();
        //放置對象
        primaryKey.setAnswer(answer);
        primaryKey.setUser(user);
        //建立讚的類
        Praise praise = new Praise();
        //將聯合主鍵放入類的對象中
        praise.setPrimaryKey(primaryKey);
        
        praiseService.addPraise(praise);
        ActionContext.getContext().put("pasteid", pasteid);
        return "toDetail";
    }

package com.Gary.web;

import com.Gary.domain.Answer;
import com.Gary.domain.Praise;
import com.Gary.domain.User;
import com.Gary.service.AnswerService;
import com.Gary.service.PraiseService;
import com.Gary.vo.PrimaryKey;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class PraiseAction extends ActionSupport{

    private String answerid;
    private String pasteid;
    private AnswerService answerService;
    private PraiseService praiseService;
    
    public String getPasteid() {
        return pasteid;
    }


    public void setPasteid(String pasteid) {
        this.pasteid = pasteid;
    }


    //添加贊
    public String addPraise() throws Exception{
        
        //確定能夠得到（用戶未登陸不能點贊，只有登陸後才能夠點贊）
        User user = (User) ActionContext.getContext().getSession().get("user");
        
        if(user == null)
        {
            ActionContext.getContext().put("error", "未登陸不容許點贊！！");
            return "error";
        }
        //根據answerid查找Answer對象
        Answer answer = answerService.findAnswerByIdReturnAnswer(answerid);
        //申明聯合主鍵
        PrimaryKey primaryKey = new PrimaryKey();
        //放置對象
        primaryKey.setAnswer(answer);
        primaryKey.setUser(user);
        //建立讚的類
        Praise praise = new Praise();
        //將聯合主鍵放入類的對象中
        praise.setPrimaryKey(primaryKey);
        
        praiseService.addPraise(praise);
        ActionContext.getContext().put("pasteid", pasteid);
        return "toDetail";
    }


    public AnswerService getAnswerService() {
        return answerService;
    }


    public void setAnswerService(AnswerService answerService) {
        this.answerService = answerService;
    }


    public PraiseService getPraiseService() {
        return praiseService;
    }


    public void setPraiseService(PraiseService praiseService) {
        this.praiseService = praiseService;
    }


    public String getAnswerid() {
        return answerid;
    }


    public void setAnswerid(String answerid) {
        this.answerid = answerid;
    }
    
}

PraiseAction.java

 

 　　service層

    public void addPraise(Praise praise) {
        praiseDao.addPraise(praise);
        
    }

package com.Gary.service;

import com.Gary.dao.PraiseDao;
import com.Gary.domain.Praise;

public class PraiseService {

    private PraiseDao praiseDao;
    
    public void addPraise(Praise praise) {
        praiseDao.addPraise(praise);
        
    }

    public PraiseDao getPraiseDao() {
        return praiseDao;
    }

    public void setPraiseDao(PraiseDao praiseDao) {
        this.praiseDao = praiseDao;
    }

}

PraiseService.java

 

　　Dao層

    //添加贊
    public void addPraise(Praise praise) {
        Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
        session.save(praise);    
    }

package com.Gary.dao;

import org.hibernate.Session;
import org.hibernate.query.NativeQuery;
import org.springframework.orm.hibernate5.support.HibernateDaoSupport;

import com.Gary.domain.Praise;

public class PraiseDao extends HibernateDaoSupport{

    //添加贊
    public void addPraise(Praise praise) {
        Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
        session.save(praise);    
    }

}

PraiseDao.java

 

 

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>問題詳情</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="keywords" content="fly,layui,前端社區">
<meta name="description" content="">
<link rel="stylesheet" href="res/layui/css/layui.css">
<link rel="stylesheet" href="res/css/global.css">
<script src="res/layui/layui.js"></script>
<script src="js/jquery.js"></script>
<style type="text/css" rel="stylesheet">
form {
    margin: 0;
}

.editor {
    margin-top: 5px;
    margin-bottom: 5px;
}
</style>

</head>
<body style="margin: -2px">
    <iframe src="head.jsp" scrolling="no" width="100%" height="110px"></iframe>
    <div class="main layui-clear">
        <div class="wrap">
            <div class="content detail">
                <div class="fly-panel detail-box">

                    <h1>
                        <s:property value="#paste.title" />
                    </h1>
                    <div class="fly-tip fly-detail-hint" data-id="">
                        <span class="fly-tip-stick">置頂帖</span> <span class="jie-admin"> <a href="">點擊置頂</a>
                        </span> <span class="layui-btn layui-btn-mini jie-admin"> <a href="">取消置頂</a>
                        </span> <span class="jie-admin" type="del" style="margin-left: 20px;"> <a>刪除該帖</a>
                        </span> </span>
                        <div class="fly-list-hint">
                            <i class="iconfont" title="回答">&#xe60c;</i>
                            <s:property value="#paste.ansnum" />
                        </div>
                    </div>
                    <div class="detail-about">
                        <a class="jie-user" href=""> <img src="${pageContext.request.contextPath }/<s:property value="#paste.user.image"/>" alt="頭像"> <cite> <s:property value="#paste.user.username" /> <em> <s:property value="#paste.createtime" /> 發佈
                            </em>
                        </cite>
                        </a>
                        <div class="detail-hits" data-id="{{rows.id}}">
                            <span class="layui-btn layui-btn-mini jie-admin"> <a href="#">已完帖，沒法編輯</a>
                            </span> <span class="layui-btn layui-btn-mini jie-admin" type="collect" data-type="add"> <a id="collectPost">收藏</a>
                            </span> <span class="layui-btn layui-btn-mini jie-admin  layui-btn-danger" type="collect" data-type="add"> <a>取消收藏</a>
                            </span>

                        </div>
                    </div>
                    <div class="detail-body photos" style="margin-bottom: 20px;">
                        <p>
                            <s:property value="#paste.content" />
                        </p>
                    </div>
                </div>



                <div class="fly-panel detail-box" style="padding-top: 0;">
                    <a name="comment"></a>
                    <ul class="jieda photos" id="jieda">
                        <!--  <li data-id="12" class="jieda-daan"><a name="item-121212121212"></a>
                            <div class="detail-about detail-about-reply">
                                <a class="jie-user" href=""> <img src="res/images/uer.jpg" alt=""> <cite> <i>紙飛機</i> <em>(樓主)</em>
                  <em style="color:#5FB878">(管理員)</em> 
                                </cite>
                                </a>
                                <div class="detail-hits">
                                    <span>3分鐘前</span>
                                </div>
                                <i class="iconfont icon-caina" title="最佳答案"></i>
                            </div>
                            <div class="detail-body jieda-body">
                                <p>麼麼噠</p>
                            </div>
                            <div class="jieda-reply">
                                <span class="jieda-zan zanok" type="zan"><i class="iconfont icon-zan"></i><em>12</em> </span>
                                <!-- <div class="jieda-admin">
                <span type="del">刪除</span>
                <span class="jieda-accept" type="accept">採納</span>
              </div>
                        </div></li> -->



                        <s:iterator value="#answerList" var="answer">
                            <li data-id="13"><a name="item-121212121212"></a>
                                <div class="detail-about detail-about-reply">
                                    <a class="jie-user" href=""> <img src="${pageContext.request.contextPath }/<s:property value="#answer.user.image"/>" alt=""> <cite> <i><s:property value="#answer.user.username" /></i> <em style="color: #FF9E3F">活雷鋒</em>
                                    </cite>
                                    </a>
                                    <div class="detail-hits">
                                        <span> <s:property value="#answer.anstime" />
                                        </span>
                                    </div>
                                    <s:if test="#answer.id==#paste.answerid">
                                        <i class="iconfont icon-caina" title="最佳答案"></i>
                                    </s:if>
                                </div>
                                <div class="detail-body jieda-body">
                                    <p>
                                        <s:property value="#answer.content" />
                                    </p>
                                </div>
                                <div class="jieda-reply">
                                        <a href="${pageContext.request.contextPath }/PraiseAction_addPraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
                                            <span class="jieda-zan" type="zan">
                                                <i class="iconfont icon-zan"></i>
                                                <em>
                                                    <s:property value="#answer.agree" />
                                                </em>
                                            </span>
                                        </a>
                                    <div class="jieda-admin">
                                        <s:if test="#session.user.username==#answer.user.username && #paste.answerid!=#answer.id">
                                            <span type="del">
                                                <a href="${pageContext.request.contextPath }/AnswerAction_deleteAnswer?answerid=<s:property value="#answer.id"/>&pasteid=<s:property value="#paste.id"/>" class="layui-btn layui-btn-danger layui-btn-small">刪除</a>
                                            </span>
                                        </s:if>
                                        <s:if test="#session.user.username==#paste.user.username && #paste.solve==0">
                                            <span class="jieda-accept" type="accept">
                                                <a href="${pageContext.request.contextPath }/PasteAction_solvePaste?answerid=<s:property value="#answer.id"/>&pasteid=<s:property value="#paste.id"/>" class="layui-btn  layui-btn-small">採納</a>
                                            </span>
                                        </s:if>
                                    </div>
                                </div></li>
                        </s:iterator>
                        <s:if test="#answerList.size()==0">
                            <li class="fly-none">沒有任何回答</li>
                        </s:if>
                    </ul>
                    <div class="layui-form layui-form-pane">
                        <!-- <form action="${pageContext.request.contextPath }/AnswerAction_addAnswer">
                            <input type="hidden" name="pasteid" value="<s:property value="#paste.id"/>">
                            <div class="layui-form-item layui-form-text">
                                <div class="layui-input-block">
                                    <textarea id="L_content" name="content" required lay-verify="required" placeholder="我要回答" class="layui-textarea fly-editor" style="height: 150px;"></textarea>
                                </div>
                            </div>
                            <div class="layui-form-item">
                                <button class="layui-btn" lay-filter="*" lay-submit>提交回答</button>
                            </div>
                        </form> -->
                        <form action="${pageContext.request.contextPath}/AnswerAction_addAnswer">
                            <input type="hidden" name="pasteid" value="<s:property value="#paste.id"/>"> <label for="L_title" class="layui-form-label" style="width: 690px; height: 40px;">
                                <div style="margin-left: -580px">回答問題：</div>
                            </label>
                            <div class="layui-form-item layui-form-text">
                                <div class="layui-input-block">
                                    <div class="editor">
                                        <textarea id="content" name="content" style="width: 690px; height: 300px; visibility: hidden;"></textarea>
                                    </div>
                                </div>

                            </div>

                            <div class="layui-form-item">
                                <button class="layui-btn" lay-filter="*" lay-submit>當即發佈</button>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>

        <div class="edge">
            <dl class="fly-panel fly-list-one">
                <dt class="fly-panel-title">最近熱帖</dt>
                <s:iterator value="#glanceoverPageBean.list" var="paste">
                    <dd>

                        <a href="${pageContext.request.contextPath }/PasteAction_getDetail?pasteid=<s:property value="#paste.id"/>"> <s:property value="#paste.title" />
                        </a> <span> <i class="iconfont">&#xe60b;</i> <s:property value="#paste.glanceover" />
                        </span>
                    </dd>
                </s:iterator>
            </dl>

            <dl class="fly-panel fly-list-one">
                <dt class="fly-panel-title">近期熱議</dt>
                <s:iterator value="#ansnumPageBean.list" var="paste">
                    <dd>
                        <a href="${pageContext.request.contextPath }/PasteAction_getDetail?pasteid=<s:property value="#paste.id"/>"> <s:property value="#paste.title" />
                        </a> <span> <i class="iconfont">&#xe60c;</i> <s:property value="#paste.ansnum" />
                        </span>
                    </dd>
                </s:iterator>
            </dl>
        </div>
    </div>

    <%-- <script type="text/javascript" charset="utf-8" src="res/js/kindeditor.js"></script>
    <script type="text/javascript">
        KE.show({
            id : 'L_content',
            resizeMode : 1,
            items : [ 'fontname', 'fontsize', 'textcolor', 'bgcolor', 'bold',
                    'italic', 'underline', 'removeformat', 'justifyleft',
                    'justifycenter', 'justifyright', 'insertorderedlist',
                    'insertunorderedlist', 'emoticons', 'image', 'link' ]
        });
    </script> --%>
    <script type="text/javascript" charset="utf-8" src="js/kindeditor.js"></script>
    <script type="text/javascript">
        KE.show({
            id : 'content',
            resizeMode : 1,
            cssPath : './index.css',
            items : [ 'fontname', 'fontsize', 'textcolor', 'bgcolor', 'bold',
                    'italic', 'underline', 'removeformat', 'justifyleft',
                    'justifycenter', 'justifyright', 'insertorderedlist',
                    'insertunorderedlist', 'emoticons', 'image', 'link' ]
        });
    </script>
    <script>
        layui.cache.page = '';
        layui.cache.user = {
            username : '遊客',
            uid : -1,
            avatar : '../res/images/avatar/00.jpg',
            experience : 83,
            sex : '男'
        };
        layui.config({
            version : "2.0.0",
            base : '../res/mods/'
        }).extend({
            fly : 'index'
        }).use('fly');
    </script>
</body>
</html>

detail.jsp

 

package com.Gary.web;

import com.Gary.domain.Answer;
import com.Gary.domain.Praise;
import com.Gary.domain.User;
import com.Gary.service.AnswerService;
import com.Gary.service.PraiseService;
import com.Gary.vo.PrimaryKey;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class PraiseAction extends ActionSupport{

    private String answerid;
    private String pasteid;
    private AnswerService answerService;
    private PraiseService praiseService;
    
    public String getPasteid() {
        return pasteid;
    }


    public void setPasteid(String pasteid) {
        this.pasteid = pasteid;
    }


    //添加贊
    public String addPraise() throws Exception{
        
        //確定能夠得到（用戶未登陸不能點贊，只有登陸後才能夠點贊）
        User user = (User) ActionContext.getContext().getSession().get("user");
        
        if(user == null)
        {
            ActionContext.getContext().put("error", "未登陸不容許點贊！！");
            return "error";
        }
        //根據answerid查找Answer對象
        Answer answer = answerService.findAnswerByIdReturnAnswer(answerid);
        //申明聯合主鍵
        PrimaryKey primaryKey = new PrimaryKey();
        //放置對象
        primaryKey.setAnswer(answer);
        primaryKey.setUser(user);
        //建立讚的類
        Praise praise = new Praise();
        //將聯合主鍵放入類的對象中
        praise.setPrimaryKey(primaryKey);
        
        praiseService.addPraise(praise);
        
        answer.setAgree(answer.getAgree()+1);
        ActionContext.getContext().put("pasteid", pasteid);
        return "toDetail";
    }


    public AnswerService getAnswerService() {
        return answerService;
    }


    public void setAnswerService(AnswerService answerService) {
        this.answerService = answerService;
    }


    public PraiseService getPraiseService() {
        return praiseService;
    }


    public void setPraiseService(PraiseService praiseService) {
        this.praiseService = praiseService;
    }


    public String getAnswerid() {
        return answerid;
    }


    public void setAnswerid(String answerid) {
        this.answerid = answerid;
    }
    
}

PraiseAction.java

 

package com.Gary.service;

import com.Gary.dao.PraiseDao;
import com.Gary.domain.Praise;

public class PraiseService {

    private PraiseDao praiseDao;
    
    public void addPraise(Praise praise) {
        praiseDao.addPraise(praise);
        
    }

    public PraiseDao getPraiseDao() {
        return praiseDao;
    }

    public void setPraiseDao(PraiseDao praiseDao) {
        this.praiseDao = praiseDao;
    }

}

PraiseService.java

 

package com.Gary.dao;

import org.hibernate.Session;
import org.hibernate.query.NativeQuery;
import org.springframework.orm.hibernate5.support.HibernateDaoSupport;

import com.Gary.domain.Praise;

public class PraiseDao extends HibernateDaoSupport{

    //添加贊
    public void addPraise(Praise praise) {
        Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
        session.save(praise);    
    }

}

PraiseDao.java

 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
    "http://struts.apache.org/dtds/struts-2.5.dtd">

<struts>

    <!--開啓動態方法調用 -->
    <constant name="struts.devMode" value="true"></constant>
    <constant name="struts.enable.DynamicMethodInvocation" value="true"></constant>

    <!-- 告訴struts不用本身建立Action,Spring來幫你建立 -->
    <constant name="struts.objectFactory" value="spring"></constant>
    <package name="Gary_SSHForum" namespace="/" extends="struts-default">
        <!-- 容許所有方法 -->
        <global-allowed-methods>regex:.*</global-allowed-methods>
        <action name="UserAction_*" class="com.Gary.web.UserAction" method="{1}">
            <result name="toLogin" type="redirect">/login.jsp</result>
            <result name="login">/login.jsp</result>
            <result name="toIndex" type="redirect">/default.jsp</result>
            <result name="error">/login.jsp</result>
            <result name="toRegisterSuccess" type="redirect">/registerSuccess.jsp</result>
        </action>
    
    <action name="PasteAction_*" class="com.Gary.web.PasteAction" method="{1}">
        <!-- 從定向到jsp -->
        <result name="toIndex" type="redirect">/default.jsp</result>
        <result name="error">/login.jsp</result>
        <!-- 轉發到jsp -->
        <result name="detail">/detail.jsp</result>
        <!-- 重定向到Action -->
        <result name="toDetail" type="redirectAction">
            <param name="actionName"> PasteAction_getDetail </param>
            <!-- struts不認識pasteid則會封裝到重定向的action中 -->
            <param name="pasteid">${pasteid}</param>
        </result>
    </action>
    
    <action name="GetDataAction_*"  class="com.Gary.web.GetDataAction" method="{1}">
        <result name="index" >/index.jsp</result>
    </action>
    <action name="AnswerAction_*" class="com.Gary.web.AnswerAction" method="{1}">
            <result name="error">/login.jsp</result>
            <!-- 重定向到Action -->
            <result name="toDetail" type="redirectAction">
                <param name="actionName">PasteAction_getDetail</param>
                <!-- struts不認識pasteid則會封裝到重定向的action中 -->
                <param name="pasteid">${pasteid}</param>
            </result>
        </action>
        
    <action name="PraiseAction_*" class="com.Gary.web.PraiseAction" method="{1}">
        <result name="error">/login.jsp</result>
        <result name="toDetail" type="redirectAction">
            <param name="actionName">PasteAction_getDetail</param>
            <param name="pasteid">${pasteid}</param>
        </result>
    </action>
        
    </package>
    

</struts>

struct.xml

 

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 配置數據源 -->
    <bean name="dataSource"
        class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="jdbcUrl" value="jdbc:mysqL:///garyssh_forum"></property>
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="user" value="root"></property>
        <property name="password" value="123456"></property>
    </bean>

    <!-- 配置sessionFactory -->
    <bean name="sessionFactory"
        class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
                <prop key="hibernate.show_sqp">true</prop>
                <prop key="hibernate.format_sql">true</prop>
            </props>
        </property>

        <property name="mappingDirectoryLocations"
            value="classpath:com/Gary/domain"></property>

    </bean>

    <!-- 配置事務的核心管理器 -->
    <bean name="transactionManager"
        class="org.springframework.orm.hibernate5.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>

    <!-- 通知 -->
    <tx:advice id="advice"
        transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="*" />
        </tx:attributes>
    </tx:advice>

    <!-- 織入 -->
    <aop:config>
        <!-- 切入點 -->
        <aop:pointcut
            expression="execution(* com.Gary.service.*.*(..))" id="pc" />
        <!-- 配置切面 切入點+通知 -->
        <aop:advisor advice-ref="advice" pointcut-ref="pc" />
    </aop:config>

    <!-- 配置Action -->
    <bean name="userAction" class="com.Gary.web.UserAction" scope="prototype">
        <property name="userService" ref="userService"></property>
    </bean>
    <bean name="pasteAction" class="com.Gary.web.PasteAction" scope="prototype">
        <property name="pasteService" ref="pasteService"></property>
        <property name="answerService" ref="answerService"></property>
    </bean>
    <bean name="getDataAction" class="com.Gary.web.GetDataAction" scope="prototype">
        <property name="pasteService" ref="pasteService"></property>
        <property name="userService" ref="userService"></property>
    </bean>
    <bean name="answerAction" class="com.Gary.web.AnswerAction" scope="prototype">
        <property name="answerService" ref="answerService"></property>
        <property name="pasteService" ref="pasteService"></property>
    </bean>
    <bean name="praiseAction" class="com.Gary.web.PraiseAction" scope="prototype">
        <property name="answerService" ref="answerService"></property>
        <property name="praiseService" ref="praiseService"></property>
    </bean>
    
    <!-- 配置Service -->
    <bean name="userService" class="com.Gary.service.UserService">
        <property name="userDao" ref="userDao"></property>
    </bean>
    <bean name="pasteService" class="com.Gary.service.PasteService">
        <property name="pasteDao" ref="pasteDao"></property>
        <property name="userDao" ref="userDao"></property>
        <property name="answerDao" ref="answerDao"></property>
    </bean>
    <bean name="answerService" class="com.Gary.service.AnswerService">
        <property name="answerDao" ref="answerDao"></property>
        <property name="pasteDao" ref="pasteDao"></property>
    </bean>
    <bean name="praiseService" class="com.Gary.service.PraiseService">
        <property name="praiseDao" ref="praiseDao"></property>
    </bean>
    
    <!-- 配置Dao -->
    <bean name="userDao" class="com.Gary.dao.UserDao">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <bean name="pasteDao" class="com.Gary.dao.PasteDao">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <bean name="answerDao" class="com.Gary.dao.AnswerDao">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <bean name="praiseDao" class="com.Gary.dao.PraiseDao">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    
</beans>

application.xml

 

　　前端分析點贊

　　用戶點贊後，後端處理邏輯及修改數據庫的值

 

 　　前端點贊

<div class="jieda-reply">
                                    
                                    <!-- 登陸用戶點讚了哪些回覆 -->
                                    <s:if test="#answer.loginUserIsAgree==0">
                                        <a href="${pageContext.request.contextPath }/PraiseAction_addPraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
                                            <span class="jieda-zan" type="zan">
                                                <i class="iconfont icon-zan"></i>
                                                <em>
                                                    <s:property value="#answer.agree" />
                                                </em>
                                            </span>
                                        </a>
                                    </s:if>
                                    <s:else>
                                        
                                            <span class="jieda-zan zanok" type="zan">

                                                <i class="iconfont icon-zan"></i>
                                                <em>
                                                    <s:property value="#answer.agree" />
                                                </em>
                                            </span>
                                
                                    </s:else>

 

 　　Web層得到用戶點贊後查看帖子詳細信息，當用戶未登錄時，需用戶跳轉到登錄界面登錄，當用戶成功登錄，則點贊數+1

//查看帖子詳細信息
    public String getDetail() throws Exception{
    
        User user = (User)ActionContext.getContext().getSession().get("user");
        
        //獲得最近熱帖
        PageBean glanceoverPageBean = pasteService.getGlanceoverPageBean(null);
        ActionContext.getContext().put("glanceoverPageBean", glanceoverPageBean);
                
        //獲得最近熱議
        PageBean ansnumPageBean = pasteService.getAnsnumPageBean(null);
        ActionContext.getContext().put("ansnumPageBean", ansnumPageBean);
                
        //得到帖子
        Paste paste = pasteService.findPasteByIdReturnPaste(pasteid);
        ActionContext.getContext().put("paste", paste);
        
        //得到該帖子的全部回覆
        List<Answer> answerList = answerService.findAllAnswerByPasteid(pasteid);
        for(Answer answer:answerList) 
        {
            if(user != null)
            {
                //判斷用戶是否點讚了該回復
                boolean success = praiseService.findPraiseByIdReturnPraise(user.getId(),answer.getId());
                if(success)
                {
                    //若是查詢到用戶點讚了該回復，將loginUserIsAgree設置爲1
                    answer.setLoginUserIsAgree(1);
                }
                else
                {
                    //若是沒有查詢到用戶點讚了該回復，將loginUserIsAgree設置爲0
                    answer.setLoginUserIsAgree(0);
                }
            }
            else 
            {
                //若是沒有登錄，將loginUserIsAgree設置爲0
                answer.setLoginUserIsAgree(0);
            }
        }
        ActionContext.getContext().put("answerList", answerList);
        
        return "detail";
    }

 

 　　Dao層進行數據庫的修改

    public void addAnswerAgree(String answerid) {
        Answer answer = answerDao.findAnswerById(answerid);
        answer.setAgree(answer.getAgree() + 1);
        //第二種方式sql
        //update answer set agree = agree +1 where answer id = ?
    }

 

 

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>問題詳情</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="keywords" content="fly,layui,前端社區">
<meta name="description" content="">
<link rel="stylesheet" href="res/layui/css/layui.css">
<link rel="stylesheet" href="res/css/global.css">
<script src="res/layui/layui.js"></script>
<script src="js/jquery.js"></script>
<style type="text/css" rel="stylesheet">
form {
    margin: 0;
}

.editor {
    margin-top: 5px;
    margin-bottom: 5px;
}
</style>

</head>
<body style="margin: -2px">
    <iframe src="head.jsp" scrolling="no" width="100%" height="110px"></iframe>
    <div class="main layui-clear">
        <div class="wrap">
            <div class="content detail">
                <div class="fly-panel detail-box">

                    <h1>
                        <s:property value="#paste.title" />
                    </h1>
                    <div class="fly-tip fly-detail-hint" data-id="">
                        <span class="fly-tip-stick">置頂帖</span> <span class="jie-admin"> <a href="">點擊置頂</a>
                        </span> <span class="layui-btn layui-btn-mini jie-admin"> <a href="">取消置頂</a>
                        </span> <span class="jie-admin" type="del" style="margin-left: 20px;"> <a>刪除該帖</a>
                        </span> </span>
                        <div class="fly-list-hint">
                            <i class="iconfont" title="回答">&#xe60c;</i>
                            <s:property value="#paste.ansnum" />
                        </div>
                    </div>
                    <div class="detail-about">
                        <a class="jie-user" href=""> <img src="${pageContext.request.contextPath }/<s:property value="#paste.user.image"/>" alt="頭像"> <cite> <s:property value="#paste.user.username" /> <em> <s:property value="#paste.createtime" /> 發佈
                            </em>
                        </cite>
                        </a>
                        <div class="detail-hits" data-id="{{rows.id}}">
                            <span class="layui-btn layui-btn-mini jie-admin"> <a href="#">已完帖，沒法編輯</a>
                            </span> <span class="layui-btn layui-btn-mini jie-admin" type="collect" data-type="add"> <a id="collectPost">收藏</a>
                            </span> <span class="layui-btn layui-btn-mini jie-admin  layui-btn-danger" type="collect" data-type="add"> <a>取消收藏</a>
                            </span>

                        </div>
                    </div>
                    <div class="detail-body photos" style="margin-bottom: 20px;">
                        <p>
                            <s:property value="#paste.content" />
                        </p>
                    </div>
                </div>



                <div class="fly-panel detail-box" style="padding-top: 0;">
                    <a name="comment"></a>
                    <ul class="jieda photos" id="jieda">
                        <!--  <li data-id="12" class="jieda-daan"><a name="item-121212121212"></a>
                            <div class="detail-about detail-about-reply">
                                <a class="jie-user" href=""> <img src="res/images/uer.jpg" alt=""> <cite> <i>紙飛機</i> <em>(樓主)</em>
                  <em style="color:#5FB878">(管理員)</em> 
                                </cite>
                                </a>
                                <div class="detail-hits">
                                    <span>3分鐘前</span>
                                </div>
                                <i class="iconfont icon-caina" title="最佳答案"></i>
                            </div>
                            <div class="detail-body jieda-body">
                                <p>麼麼噠</p>
                            </div>
                            <div class="jieda-reply">
                                <span class="jieda-zan zanok" type="zan"><i class="iconfont icon-zan"></i><em>12</em> </span>
                                <!-- <div class="jieda-admin">
                <span type="del">刪除</span>
                <span class="jieda-accept" type="accept">採納</span>
              </div>
                        </div></li> -->



                        <s:iterator value="#answerList" var="answer">
                            <li data-id="13"><a name="item-121212121212"></a>
                                <div class="detail-about detail-about-reply">
                                    <a class="jie-user" href=""> <img src="${pageContext.request.contextPath }/<s:property value="#answer.user.image"/>" alt=""> <cite> <i><s:property value="#answer.user.username" /></i> <em style="color: #FF9E3F">活雷鋒</em>
                                    </cite>
                                    </a>
                                    <div class="detail-hits">
                                        <span> <s:property value="#answer.anstime" />
                                        </span>
                                    </div>
                                    <s:if test="#answer.id==#paste.answerid">
                                        <i class="iconfont icon-caina" title="最佳答案"></i>
                                    </s:if>
                                </div>
                                <div class="detail-body jieda-body">
                                    <p>
                                        <s:property value="#answer.content" />
                                    </p>
                                </div>
                                <div class="jieda-reply">
                                    
                                    <!-- 登陸用戶點讚了哪些回覆 -->
                                    <s:if test="#answer.loginUserIsAgree==0">
                                        <a href="${pageContext.request.contextPath }/PraiseAction_addPraise?answerid=<s:property value="#answer.id" />&pasteid=<s:property value="#paste.id" />">
                                            <span class="jieda-zan" type="zan">
                                                <i class="iconfont icon-zan"></i>
                                                <em>
                                                    <s:property value="#answer.agree" />
                                                </em>
                                            </span>
                                        </a>
                                    </s:if>
                                    <s:else>
                                        
                                            <span class="jieda-zan zanok" type="zan">

                                                <i class="iconfont icon-zan"></i>
                                                <em>
                                                    <s:property value="#answer.agree" />
                                                </em>
                                            </span>
                                
                                    </s:else>
                                    
                                    <div class="jieda-admin">
                                        <s:if test="#session.user.username==#answer.user.username && #paste.answerid!=#answer.id">
                                            <span type="del">
                                                <a href="${pageContext.request.contextPath }/AnswerAction_deleteAnswer?answerid=<s:property value="#answer.id"/>&pasteid=<s:property value="#paste.id"/>" class="layui-btn layui-btn-danger layui-btn-small">刪除</a>
                                            </span>
                                        </s:if>
                                        <s:if test="#session.user.username==#paste.user.username && #paste.solve==0">
                                            <span class="jieda-accept" type="accept">
                                                <a href="${pageContext.request.contextPath }/PasteAction_solvePaste?answerid=<s:property value="#answer.id"/>&pasteid=<s:property value="#paste.id"/>" class="layui-btn  layui-btn-small">採納</a>
                                            </span>
                                        </s:if>
                                    </div>
                                </div></li>
                        </s:iterator>
                        <s:if test="#answerList.size()==0">
                            <li class="fly-none">沒有任何回答</li>
                        </s:if>
                    </ul>
                    <div class="layui-form layui-form-pane">
                        <!-- <form action="${pageContext.request.contextPath }/AnswerAction_addAnswer">
                            <input type="hidden" name="pasteid" value="<s:property value="#paste.id"/>">
                            <div class="layui-form-item layui-form-text">
                                <div class="layui-input-block">
                                    <textarea id="L_content" name="content" required lay-verify="required" placeholder="我要回答" class="layui-textarea fly-editor" style="height: 150px;"></textarea>
                                </div>
                            </div>
                            <div class="layui-form-item">
                                <button class="layui-btn" lay-filter="*" lay-submit>提交回答</button>
                            </div>
                        </form> -->
                        <form action="${pageContext.request.contextPath}/AnswerAction_addAnswer">
                            <input type="hidden" name="pasteid" value="<s:property value="#paste.id"/>"> <label for="L_title" class="layui-form-label" style="width: 690px; height: 40px;">
                                <div style="margin-left: -580px">回答問題：</div>
                            </label>
                            <div class="layui-form-item layui-form-text">
                                <div class="layui-input-block">
                                    <div class="editor">
                                        <textarea id="content" name="content" style="width: 690px; height: 300px; visibility: hidden;"></textarea>
                                    </div>
                                </div>

                            </div>

                            <div class="layui-form-item">
                                <button class="layui-btn" lay-filter="*" lay-submit>當即發佈</button>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>

        <div class="edge">
            <dl class="fly-panel fly-list-one">
                <dt class="fly-panel-title">最近熱帖</dt>
                <s:iterator value="#glanceoverPageBean.list" var="paste">
                    <dd>

                        <a href="${pageContext.request.contextPath }/PasteAction_getDetail?pasteid=<s:property value="#paste.id"/>"> <s:property value="#paste.title" />
                        </a> <span> <i class="iconfont">&#xe60b;</i> <s:property value="#paste.glanceover" />
                        </span>
                    </dd>
                </s:iterator>
            </dl>

            <dl class="fly-panel fly-list-one">
                <dt class="fly-panel-title">近期熱議</dt>
                <s:iterator value="#ansnumPageBean.list" var="paste">
                    <dd>
                        <a href="${pageContext.request.contextPath }/PasteAction_getDetail?pasteid=<s:property value="#paste.id"/>"> <s:property value="#paste.title" />
                        </a> <span> <i class="iconfont">&#xe60c;</i> <s:property value="#paste.ansnum" />
                        </span>
                    </dd>
                </s:iterator>
            </dl>
        </div>
    </div>

    <%-- <script type="text/javascript" charset="utf-8" src="res/js/kindeditor.js"></script>
    <script type="text/javascript">
        KE.show({
            id : 'L_content',
            resizeMode : 1,
            items : [ 'fontname', 'fontsize', 'textcolor', 'bgcolor', 'bold',
                    'italic', 'underline', 'removeformat', 'justifyleft',
                    'justifycenter', 'justifyright', 'insertorderedlist',
                    'insertunorderedlist', 'emoticons', 'image', 'link' ]
        });
    </script> --%>
    <script type="text/javascript" charset="utf-8" src="js/kindeditor.js"></script>
    <script type="text/javascript">
        KE.show({
            id : 'content',
            resizeMode : 1,
            cssPath : './index.css',
            items : [ 'fontname', 'fontsize', 'textcolor', 'bgcolor', 'bold',
                    'italic', 'underline', 'removeformat', 'justifyleft',
                    'justifycenter', 'justifyright', 'insertorderedlist',
                    'insertunorderedlist', 'emoticons', 'image', 'link' ]
        });
    </script>
    <script>
        layui.cache.page = '';
        layui.cache.user = {
            username : '遊客',
            uid : -1,
            avatar : '../res/images/avatar/00.jpg',
            experience : 83,
            sex : '男'
        };
        layui.config({
            version : "2.0.0",
            base : '../res/mods/'
        }).extend({
            fly : 'index'
        }).use('fly');
    </script>
</body>
</html>

detail.jsp

 

package com.Gary.web;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

import com.Gary.domain.Answer;
import com.Gary.domain.Paste;
import com.Gary.domain.User;
import com.Gary.service.AnswerService;
import com.Gary.service.PasteService;
import com.Gary.service.PraiseService;
import com.Gary.utils.PageBean;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class PasteAction extends ActionSupport implements ModelDriven<Paste> {

    public Paste paste = new Paste();
    private String pasteid;

    private PasteService pasteService;
    private AnswerService answerService;
    private PraiseService praiseService;
    //解決帖子
    public String solvePaste() throws Exception{
        
        pasteService.solvePasteByIdAndAnswerid(pasteid,paste.getAnswerid());
        ActionContext.getContext().put("pasteid", pasteid);
        
        return "toDetail";
    }
    
    
    //查看帖子詳細信息
    public String getDetail() throws Exception{
    
        User user = (User)ActionContext.getContext().getSession().get("user");
        
        //獲得最近熱帖
        PageBean glanceoverPageBean = pasteService.getGlanceoverPageBean(null);
        ActionContext.getContext().put("glanceoverPageBean", glanceoverPageBean);
                
        //獲得最近熱議
        PageBean ansnumPageBean = pasteService.getAnsnumPageBean(null);
        ActionContext.getContext().put("ansnumPageBean", ansnumPageBean);
                
        //得到帖子
        Paste paste = pasteService.findPasteByIdReturnPaste(pasteid);
        ActionContext.getContext().put("paste", paste);
        
        //得到該帖子的全部回覆
        List<Answer> answerList = answerService.findAllAnswerByPasteid(pasteid);
        for(Answer answer:answerList) 
        {
            if(user != null)
            {
                //判斷用戶是否點讚了該回復
                boolean success = praiseService.findPraiseByIdReturnPraise(user.getId(),answer.getId());
                if(success)
                {
                    //若是查詢到用戶點讚了該回復，將loginUserIsAgree設置爲1
                    answer.setLoginUserIsAgree(1);
                }
                else
                {
                    //若是沒有查詢到用戶點讚了該回復，將loginUserIsAgree設置爲0
                    answer.setLoginUserIsAgree(0);
                }
            }
            else 
            {
                //若是沒有登錄，將loginUserIsAgree設置爲0
                answer.setLoginUserIsAgree(0);
            }
        }
        ActionContext.getContext().put("answerList", answerList);
        
        return "detail";
    }
    
    public PraiseService getPraiseService() {
        return praiseService;
    }


    public void setPraiseService(PraiseService praiseService) {
        this.praiseService = praiseService;
    }


    public AnswerService getAnswerService() {
        return answerService;
    }

    public void setAnswerService(AnswerService answerService) {
        this.answerService = answerService;
    }

    //添加帖子
    public String addPaste() throws Exception {
        User user = (User)ActionContext.getContext().getSession().get("user");
        
        if(user==null)
        {
            ActionContext.getContext().put("error", "只有登錄以後才能夠發帖子！！");
            return "error";
        }
        
        //private Integer ansnum;
        paste.setAnsnum(0);
        //private String createtime;
        Date date = new Date(System.currentTimeMillis());
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        String createtime = format.format(date);
        paste.setCreatetime(createtime);
        //private Integer glanceover;
        paste.setGlanceover(0);
        //是否結帖  0未結 1結束
        //private Integer solve;
        paste.setSolve(0);
        //private Integer isdelete;
        paste.setIsdelete(0);
        //private User user;
        
        paste.setUser(user);
        
        pasteService.addPaste(paste);
        
        
        //重定向到主頁
        return "toIndex";
    }

    public PasteService getPasteService() {
        return pasteService;
    }

    public void setPasteService(PasteService pasteService) {
        this.pasteService = pasteService;
    }

    @Override
    public Paste getModel() {
        // TODO Auto-generated method stub
        return paste;
    }

    public String getPasteid() {
        return pasteid;
    }

    public void setPasteid(String pasteid) {
        this.pasteid = pasteid;
    }

}

PasteAction.java

 

package com.Gary.service;

import com.Gary.dao.PraiseDao;
import com.Gary.domain.Praise;

public class PraiseService {

    private PraiseDao praiseDao;
    

    public boolean findPraiseByIdReturnPraise(String userid, String answerid) {
        Praise praise = praiseDao.findPraiseByIdReturnPraise(userid,answerid);
        return praise==null?false:true;
    }
    
    public void addPraise(Praise praise) {
        praiseDao.addPraise(praise);
        
    }

    public PraiseDao getPraiseDao() {
        return praiseDao;
    }

    public void setPraiseDao(PraiseDao praiseDao) {
        this.praiseDao = praiseDao;
    }


}

praiseService.java

 

package com.Gary.web;

import com.Gary.domain.Answer;
import com.Gary.domain.Praise;
import com.Gary.domain.User;
import com.Gary.service.AnswerService;
import com.Gary.service.PraiseService;
import com.Gary.vo.PrimaryKey;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class PraiseAction extends ActionSupport{

    private String answerid;
    private String pasteid;
    private AnswerService answerService;
    private PraiseService praiseService;
    
    public String getPasteid() {
        return pasteid;
    }


    public void setPasteid(String pasteid) {
        this.pasteid = pasteid;
    }


    //添加贊
    public String addPraise() throws Exception{
        
        //確定能夠得到（用戶未登陸不能點贊，只有登陸後才能夠點贊）
        User user = (User) ActionContext.getContext().getSession().get("user");
        
        if(user == null)
        {
            ActionContext.getContext().put("error", "未登陸不容許點贊！！");
            return "error";
        }
        //根據answerid查找Answer對象
        Answer answer = answerService.findAnswerByIdReturnAnswer(answerid);
        //申明聯合主鍵
        PrimaryKey primaryKey = new PrimaryKey();
        //放置對象
        primaryKey.setAnswer(answer);
        primaryKey.setUser(user);
        //建立讚的類
        Praise praise = new Praise();
        //將聯合主鍵放入類的對象中
        praise.setPrimaryKey(primaryKey);
        
        praiseService.addPraise(praise);
        answerService.addAnswerAgree(answerid);

        ActionContext.getContext().put("pasteid", pasteid);
        return "toDetail";
    }


    public AnswerService getAnswerService() {
        return answerService;
    }


    public void setAnswerService(AnswerService answerService) {
        this.answerService = answerService;
    }


    public PraiseService getPraiseService() {
        return praiseService;
    }


    public void setPraiseService(PraiseService praiseService) {
        this.praiseService = praiseService;
    }


    public String getAnswerid() {
        return answerid;
    }


    public void setAnswerid(String answerid) {
        this.answerid = answerid;
    }
    
}

PraiseAction.java

 

package com.Gary.service;

import java.util.List;

import com.Gary.dao.AnswerDao;
import com.Gary.dao.PasteDao;
import com.Gary.domain.Answer;
import com.Gary.domain.Paste;

public class AnswerService {



    private AnswerDao answerDao;
    private PasteDao pasteDao;
    

    public void addAnswerAgree(String answerid) {
        Answer answer = answerDao.findAnswerById(answerid);
        answer.setAgree(answer.getAgree() + 1);
        //第二種方式sql
        //update answer set agree = agree +1 where answer id = ?
    }
    
    //根據answerid查找answer對象
    public Answer findAnswerByIdReturnAnswer(String answerid) {
        Answer answer = answerDao.findAnswerById(answerid);

        return answer;
    }
    
    public List<Answer> findAllAnswerByPasteid(String pasteid) {
        
        Paste paste = pasteDao.findPasteByIdReturnPaste(pasteid);
        List<Answer> answerList = null;
        // 判斷paste中的solve是否爲1
        if (paste.getSolve() == 1) {
            // 查找最佳答案
            Answer answer = answerDao.findAnswerById(paste.getAnswerid());
            // 查找全部答案
            answerList = answerDao.findAllAnswerByPasteid(pasteid);
            // 查找全部答案中包括了最佳答案因此將最佳答案刪除
            answerList.remove(answer);
            // 在頭元素中插入最佳答案
            answerList.add(0, answer);
        } else {
            answerList = answerDao.findAllAnswerByPasteid(pasteid);
        }

        return answerList;
    }
    
    public void addAnswer(Answer answer, Paste paste) {

        paste.setAnsnum(paste.getAnsnum() + 1);
        answerDao.addAnswer(answer);
    }
    
    public void deleteAnswerById(String answerid, Paste paste) {
        paste.setAnsnum(paste.getAnsnum()-1);
        answerDao.deleteAnswerById(answerid);
    }
    
    public AnswerDao getAnswerDao() {
        return answerDao;
    }

    public void setAnswerDao(AnswerDao answerDao) {
        this.answerDao = answerDao;
    }

    public PasteDao getPasteDao() {
        return pasteDao;
    }

    public void setPasteDao(PasteDao pasteDao) {
        this.pasteDao = pasteDao;
    }


}

AnserService.java