基於Annotation方式的SpringMVC4+Spring4+Hibernate4

時間 2019-12-14

標籤基於 annotation 方式 springmvc4+spring4+hibernate4 springmvc spring hibernate 欄目 Java 简体版

原文原文鏈接

本項目基於Annotation方式的SpringMVC4+Sping4+Hibernate4。用到的全部jar包以下：html

項目的總體結構以下：java

WEB_INF/web.xml:mysql

<?xml version="1.0" encoding= "UTF-8"?>
<web-app xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance" xmlns= "http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id= "WebApp_ID" version ="3.0">
  < display-name>SpringMVC_xml</display-name >
  < welcome-file-list>
    <welcome-file >index.html </welcome-file >
    <welcome-file >index.htm </welcome-file >
    <welcome-file >index.jsp </welcome-file >
    <welcome-file >default.html </welcome-file >
    <welcome-file >default.htm </welcome-file >
    <welcome-file >default.jsp </welcome-file >
  </ welcome-file-list>
 
  < filter>
     <filter-name >encodingFilter </filter-name >
       <filter-class> org.springframework.web.filter.CharacterEncodingFilter</filter-class >
     <init-param >
            <param-name >encoding </param-name >
            <param-value >utf-8</ param-value>
     </init-param >
  </ filter>
  < filter-mapping>
     <filter-name >encodingFilter </filter-name >
     <url-pattern >/* </url-pattern >
     <!--該過濾器也要布前面，否則不起做用  -->
  </ filter-mapping>
 
 <!--  <filter> 
    <filter-name>openSessionInViewFilter</filter-name>
     該過濾器必定要布在struts2過濾器前面，否則不起做用
    <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
     <init- param>   
           <param-name>flushMode</param-name>    
           <param-value>AUTO</param-value> 
           默認flushMode是NEVER,有些狀況下會報異常，故設置爲AUTO   
     </init- param>
     <init- param>
      <param-name>singleSession</param-name>
      <param-value>false</param-value>
    </init- param>
  </filter> -->
 
 
   
    <servlet >
        <servlet-name >springmvc</servlet-name>
        <servlet-class> org.springframework.web.servlet.DispatcherServlet</servlet-class >
        <init-param >
            <param-name >contextConfigLocation </param-name >
            <param-value >classpath:spring-mvc.xml </param-value >
        </init-param >
        <load-on-startup >1 </load-on-startup >
    </servlet >
    <servlet-mapping >
        <servlet-name >springmvc</servlet-name>
        <url-pattern >*.action </url-pattern >
    </servlet-mapping >
   
    <listener >
        <listener-class> org.springframework.web.context.ContextLoaderListener</listener-class >
    </listener >
   
    <context-param >
        <param-name >contextConfigLocation </param-name >
        <param-value >classpath:beans.xml </param-value >
    </context-param >
   
</web-app>

2.src/beans.xml:web

<?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-4.2.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.2.xsd
        http://www.springframework.org/schema/aop  
          http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
           http://www.springframework.org/schema/tx  
     http://www.springframework.org/schema/tx/spring-tx-4.2.xsd ">
       
    <context:annotation-config ></context:annotation-config >
    <tx:annotation-driven transaction-manager="transactionManager" />
   
     
     <bean id ="userService" class="service.UserServiceImpl">
     </bean >
     
     <bean id ="userDao" class="dao.UserDaoImpl">
     </bean >
     
     
     <bean id ="dataSource" class= "org.apache.commons.dbcp.BasicDataSource" >
          <property name ="driverClassName" value= "com.mysql.jdbc.Driver"/>
          <property name ="url" value= "jdbc:mysql://localhost:3306/spring" />
          <property name ="username" value="root"/>
          <property name ="password" value="*******"/>
     </bean >
     
     <bean id ="transactionManager" 
         class ="org.springframework.orm.hibernate4.HibernateTransactionManager"> 
     <property name ="sessionFactory" ref="sessionFactory" />
     </bean >
     
      <bean id ="sessionFactory" class= "org.springframework.orm.hibernate4.LocalSessionFactoryBean" > 
        <property name ="dataSource" ref="dataSource" /> 
        <property name ="hibernateProperties">  
            <props > 
                <prop key= "hibernate.dialect">org.hibernate.dialect.MySQLDialect </prop > 
                <prop key ="hibernate.show_sql"> true</ prop>
                <prop key ="hibernate.hbm2ddl.auto"> update</ prop>  
                <prop key ="hibernate.format_sql"> true</ prop>  
            </props > 
        </property >
       
        <property name ="packagesToScan">  
            <list > 
                <value >entity </value > 
            </list > 
        </property >   
    </bean > 
         <!-- 配置HibernateTemplate Bean -->
    <bean id ="hibernateTemplate" class= "org.springframework.orm.hibernate4.HibernateTemplate" >
     <property name ="sessionFactory" ref= "sessionFactory"></property >
    </bean >
     
</beans>

3.src/spring-mvc.xml:spring

<?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:mvc="http://www.springframework.org/schema/mvc" 
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
                    http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 
                    http://www.springframework.org/schema/context
                    http://www.springframework.org/schema/context/spring-context-4.2.xsd 
                    http://www.springframework.org/schema/mvc
                    http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">                 


    <!-- if you use annotation you must configure following setting -->
	     <mvc:annotation-driven /> 
    
		<!--     scan the package and the sub package -->
    <context:component-scan base-package="controller"/> 
    
    
    <!-- configure the InternalResourceViewResolver -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" 
            id="internalResourceViewResolver">
        <property name="prefix" value="/"/>
        <property name="suffix" value=".jsp"/>
      </bean>

</beans>

4.user/user.jsp:sql

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
	<form action="user.action" method="post"><br>
		uname:<input type="text" name="uname"/><br>
		pwd:<input type="password" name="pwd"/><br>
		repwd<input type="password" name="repwd"/><br>
		<input type="hidden" name="method" value="log2"/>
		提交：<input type="submit" value="提交 "/>
	</form>
</body>
</html>

5.user/userResult.jsp:apache

<%@ page language ="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<%@page import= "entity.User" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" >
<html>
<head>
<meta http-equiv= "Content-Type" content ="text/html; charset=utf-8">
<title> Insert title here</ title>
</head>
<body>
     <h1 >註冊成功 </h1 >
      uname:<%= request.getParameter("uname" ) %> 寫入成功
</body>
</html>

6.controller.UserController.java:spring-mvc

package controller;

import javax.annotation.Resource;

import org.springframework.web.bind.annotation.RequestMapping;

import entity.User;
import service.UserService;
import org.springframework.stereotype.Controller;

@Controller
@RequestMapping("user/user.action")
public class UserController{
	private UserService userService;
	

	public UserService getUserService() {
		return userService;
	}

	@Resource
	public void setUserService(UserService userService) {
		this.userService = userService;
	}
	private User user;
	

	@RequestMapping(params="method=log")
	public String log(String uname,String pwd){
		System.out.println("log() invoked");
		System.out.println(uname+pwd);
		user = new User();
		user.setUname(uname);
		user.setPwd(pwd);
		userService.add(user);
		return "user/userResult";
		
	}
	
	@RequestMapping(params="method=log2")
	public String log2(User user){//相似Struts2的模型驅動，可自動將頁面提交的uname和pwd封裝進該User對象
		System.out.println("log2() invoked");
		System.out.println(user.getUname()+user.getPwd());
		userService.add(user);
		return "user/userResult";
		
	}

}

7.entity.User.java:session

package entity;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
@Entity
public class User {
     private int id;
     private String uname;
     private String pwd;
     @Id
     @GeneratedValue
     public int getId() {
          return id;
     }
     public void setId(int id) {
          this.id = id;
     }
     public String getUname() {
          return uname;
     }
     public void setUname(String uname) {
          this.uname = uname;
     }
     public String getPwd() {
          return pwd;
     }
     public void setPwd(String pwd) {
          this.pwd = pwd;
     }
    
}

8.service.UserService.java:mvc

package service;
import java.util.List;
import entity.User;
public interface UserService {
     boolean exists(User user);
     void add(User user);
    
     List<User> getUsers();
    
     User getUser(int id);
}

9.service.UserServiceImpl.java:

package service;



import java.util.List;

import javax.annotation.Resource;

import org.springframework.transaction.annotation.Transactional;

import dao.UserDao;
import entity.User;

public class UserServiceImpl implements UserService {
 
private UserDao userDao;

public UserDao getUserDao() {
return userDao;
}
@Resource
public void setUserDao(UserDao userDao) {
this.userDao = userDao;
}

/* (non-Javadoc)
* @see service.UserService#exists(entiey.User)
*/
@Override
public boolean exists(User user) {
return userDao.checkUserExistsByUname(user.getUname());
   
}

/* (non-Javadoc)
* @see service.UserService#add(entiey.User)
*/
@Override
@Transactional
public void add(User user) {
System.out.println("add成功");
userDao.save(user);  
}

@Override
public List<User> getUsers() {
return userDao.getUsers();
}

@Override
public User getUser(int id) {
return userDao.getUser(id);
}
}

10.dao.UserDao.java:

package dao;
import java.util.List;
import entity.User;
public interface UserDao {
     boolean checkUserExistsByUname(String uname);
     void save(User user);
    
     List<User> getUsers();
    
     User getUser(int id);
}

11.dao.UserDaoImpl.java:

package dao;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.orm.hibernate4.HibernateTemplate;
import entity.User;
public class UserDaoImpl implements UserDao {
     private HibernateTemplate hibernateTemplate;
    
    
     public HibernateTemplate getHibernateTemplate() {
          return hibernateTemplate;
     }
    
     @Resource
     public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
          this.hibernateTemplate = hibernateTemplate;
     }
    
    
     /* (non-Javadoc)
     * @see dao.UserDao#checkUserExistsByUname(java.lang.String)
     */
     @Override
     public boolean checkUserExistsByUname(String uname){
          //String sql = "select count(*) from User where uname = '"+uname+"'";
          String sql = "from User where uname = '"+uname+"'";
          List list = (List) hibernateTemplate.find(sql);
          if(list!=null&&list.size()>0){
               return true;
          }
         
         return false;
     }
    
     /* (non-Javadoc)
     * @see dao.UserDao#save(entiey.User)
     */
     @Override
     public void save(User user){
          hibernateTemplate.save(user);
     }
     @Override
     public List<User> getUsers() {
          return (List<User>) hibernateTemplate.find("from User");
     }
     @Override
     public User getUser(int id) {
          return hibernateTemplate.load(User.class, id);
          //使用load()時，會報LazyInitializationException，這時需在web.xml中配置過濾器openSessionInViewFilter
          //return hibernateTemplate.get(User.class, id);獨立表格或小數據量的可以使用get獲取
     }
}