從0開始入門ssm-crm系統實戰

時間 2020-01-09

標籤開始入門 ssm crm 系統實戰简体版

原文原文鏈接

喜歡就點個讚唄!
GitHub項目 ssm-learn-crm
show me the code and take to me,作的出來更要說的明白

1.1 克隆

git clone https://github.com/buerbl/ssm-learn-crm.git

1. 2 結果

2 分析需求

咱們須要作一個客戶系統，使用者能夠在系統上面保存、編輯、刪除、客戶信息。javascript

3 技術選型

此次咱們選擇 ssm 三大框架搭建系統的後端，前端頁面的話用 JSP 以及 JQuery EasyUI；數據庫使用 MySQL；項目構想使用 Maven 工具。css

技術	做用
Spring	管理對象，管理事務等
SpringMVC	路徑跳轉，請求訪問等
Mybatis	數據獲取等
JQuery EasyUI	頁面展現等
MySQL	存取數據等
IDEA	快速寫代碼等
Navicat	數據庫可視化軟件

4 數據庫

咱們須要保存客戶的名字、性別、聯繫方式和地址，所以咱們的數據庫腳本以下html

CREATE table t_customer(
    id int PRIMARY KEY auto_increment,
    name VARCHAR(20),
    gender char(1),
    telephone VARCHAR(20),
    address VARCHAR(50)
);

5 Maven 管理

5.1 jar 包

一次性導入咱們須要的jar,依賴以下前端

<dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
            <version>2.4.2</version>
        </dependency>
        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.26</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.3</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>4.3.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.12</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.6.0</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.6.0</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.6.0</version>
        </dependency>
    </dependencies>

5.2 編譯問題

可能當咱們編譯的時候，咱們發現 webapp 的文件並無編譯進來，咱們須要在 pom.xml 中加入以下,告訴 Mavne 須要編譯特定文件。java

<build>
   <resources>
        <resource>
            <directory>src/main/webapp</directory>
            <filtering>true</filtering>
        </resource>
    </resources>
</build>

6 劃分層次

來到這裏的話，咱們須要創建文件夾，準備開始寫代碼。通常按照套路的話，我喜歡以下的規則mysql

文件夾	做用
controller	控制層代碼
domain	實體類代碼
dao	Mapper代碼
service	服務層代碼

7 實體類代碼

咱們根據數據庫字段編寫實體類代碼，代碼以下,我使用了 lombok 框架，這個東西須要 IDEA 安裝一個 lombok 插件。jquery

package com.buer.domain;

import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

/**
 * @Description:
 * @Author: boolean
 * @Date: 2019/12/22 11:51
 */

@Getter
@Setter
@ToString

@AllArgsConstructor
public class Customer {
    private  Integer id;
    private String name;
    private String gender;
    private String telephone;
    private String address;
}

有個問題，這些字段是怎樣和數據庫字段一一對應的呢？下面揭曉。git

8 Mapper代碼

這裏咱們須要的 Mybatis 要上場了，首先咱們須要以下Mapper代碼github

package com.buer.dao;

import com.buer.domain.Customer;

import java.util.List;

public interface CustomerMapper {
    /**
     * 添加客戶
     */
    void saveCustomer(Customer customer);

    /**
     * 查詢全部客戶
     * @return
     */
    List<Customer> list();

    /***
     * 查找某個客戶
     * @param id
     * @return
     */
    Customer findById(Integer id);
}

9 Mapper 對應的 xml

有了 Mapper 代碼，咱們須要給 Mapper 配上相應的 xml 文件。以下web

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- 該文件編寫mybatis中的mapper接口裏面的方法提供對應的sql語句 -->
<mapper namespace="com.buer.dao.CustomerMapper">

    <!-- 添加客戶 -->
    <insert id="saveCustomer" parameterType="com.buer.domain.Customer">
        INSERT INTO ssm.t_customer
            (
            NAME,
            gender,
            telephone,
            address
            )
            VALUES
            (
            #{name},
            #{gender},
            #{telephone},
            #{address}
            )
    </insert>

    <select id="list" resultType="com.buer.domain.Customer">
        select * from t_customer
    </select>

    <select id="findById" resultType="com.buer.domain.Customer">
        select * from t_customer where id = #{id}
    </select>
</mapper>

解答上面的問題，實體類字段是怎樣和數據庫字段一一對應，經過 resultType 來自動映射。

10 服務層代碼

先來接口層的代碼。代碼以下

package com.buer.service;

import com.buer.domain.Customer;

import java.util.List;

public interface IcustomerService {
    /**
     * 添加客戶
     */
    void saveCustomer(Customer customer);

    /**
     * 返回全部數據
     * @return
     */
    List<Customer> list();

    /**
     * 修數據
     * @return
     */
    Customer findById(Integer id);
}

而後實現接口，代碼以下

package com.buer.service.Impl;

import com.buer.dao.CustomerMapper;
import com.buer.domain.Customer;
import com.buer.service.IcustomerService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.util.List;

/**
 * @Description:
 * @Author: boolean
 * @Date: 2019/12/22 18:28
 */
@Service("customerService")
public class IcustomerServiceImpl implements IcustomerService {
    @Resource
    private CustomerMapper customerMapper;
    @Override
    @Transactional
    public void saveCustomer(Customer customer) {
        customerMapper.saveCustomer(customer);
    }

    @Override
    public List<Customer> list() {
        return customerMapper.list();
    }

    @Override
    public Customer findById(Integer id) {
        return customerMapper.findById(id);
    }
}

這裏咱們看到@Service("customerService"),@Resource, @Transactional ,這些註解他們的做用是啥子哦？請看下面

註解	做用
@Service("customerService")	告訴 Spring，這是一個叫 customerService 的東西，你要照顧好她，給他在初始化的時候建立一個對象。
@Resource	Java裏面的註解，注入對象
@Transactional	告訴 Spring，須要開始事務

11 控制層代碼

這裏就是 SpringMVC 的舞臺了。代碼以下

package com.buer.controller;

import com.buer.domain.Customer;
import com.buer.service.IcustomerService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.annotation.Resource;
import java.util.List;

/**
 * @Description:
 * @Author: boolean
 * @Date: 2019/12/22 18:50
 */

@Controller
@RequestMapping("/customer")
public class CustomerController {

    @Resource
    private IcustomerService service;
    @RequestMapping("/index")
    public String test(){
        System.out.println("ssss");
        return "index";
    }


    @RequestMapping("/save")
    public String save(Customer customer){
        System.out.println("save");
        service.saveCustomer(customer);
        return "success";
    }

    @RequestMapping("/list")
    @ResponseBody
    public List<Customer> list(){
        System.out.println("list");
        return service.list();
    }

    @RequestMapping("/findById")
    @ResponseBody
    public Customer findById(Integer id){
        System.out.println("findById");
        return service.findById(id);
    }
}

註解	做用
@Controller	告訴 SpringMVC，這是你負責的代碼
@RequestMapping("/save")	告訴 SpringMVC，用「/save」路徑訪問
@ResponseBody	告訴 SpringMVC，須要返回JSON

以上就是代碼的編寫，可是尚未完成哈，咱們須要一些配置文件。

12 jdbc.properties

咱們要鏈接數據庫，代碼以下

jdbc.url=jdbc:mysql://localhost:3306/ssm
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=root
jdbc.password=123456

13 applicationContext.xml

咱們要告訴 Spring 鏈接數據庫，以及咱們寫的代碼在哪裏，怎麼去操做咱們的代碼。代碼以下

<?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">

    <!-- 讀取jdbc.properties -->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!-- 建立DataSource -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="url" value="${jdbc.url}"/>
        <property name="driverClassName" value="${jdbc.driverClass}"/>
        <property name="username" value="${jdbc.user}"/>
        <property name="password" value="${jdbc.password}"/>
        <property name="maxActive" value="10"/>
        <property name="maxIdle" value="5"/>
    </bean>

    <!-- 建立SqlSessionFactory對象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 關聯鏈接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 加載mapper.xml -->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>
    <!-- Mapper全部接口的掃描 -->
    <!--注意：若是使用Mapper接口包掃描，那麼每一個Mapper接口在Spring容器中的id名稱爲類名： 例如 CustomerMapper -> customerMapper-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 配置Mapper接口所在包路徑  -->
        <property name="basePackage" value="com.buer.dao"></property>
    </bean>

    <!-- 開啓Spring的IOC註解掃描 -->
    <context:component-scan base-package="com.buer"/>

    <!-- 開啓Spring的事務 -->
    <!-- -事務管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!-- 啓用Spring事務註解 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

14 spring-mvc.xml

咱們須要告訴 SpringMVC,他須要的代碼在哪裏，怎麼去操做咱們的代碼

15 web.xml

咱們須要啓動項目了，以及一些字體指定。代碼以下

<?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_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>01.mybatis</display-name>
  <!-- 配置SpringMVC編碼過濾器 -->
  <filter>
    <filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <!-- 啓動SpringMVC -->
  <servlet>
    <servlet-name>DispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 參數：讀取spring-mvc.xml -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>DispatcherServlet</servlet-name>
    <url-pattern>*.action</url-pattern>
  </servlet-mapping>


  <!-- 啓動spring -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 修改路徑 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
</web-app>

這裏的話，後端就搭起來了。

16 頁面編寫

16.1 index.jsp

咱們須要編寫首頁，代碼以下

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>booleanbl 公衆號 客戶關係管理系統</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <script type="text/javascript" src="easyui/jquery.min.js"></script>
    <script type="text/javascript" src="easyui/jquery.easyui.min.js"></script>
    <script type="text/javascript" src="easyui/locale/easyui-lang-zh_CN.js"></script>
    <link rel="stylesheet" type="text/css" href="easyui/themes/icon.css">
    <link id="themeLink" rel="stylesheet" type="text/css" href="easyui/themes/default/easyui.css">

    <style type="text/css">
        ul{
            line-height: 30px;
        }
    </style>
  </head>
  
  <body class="easyui-layout"> 
       <!-- 頂部 --> 
    <div data-options="region:'north',split:true" style="height:80px;">
        
        <!-- logo -->
        <div id="logo">
            <img src="images/20191223003101.png"/>
        </div>
        
        <!-- 登陸用戶信息 -->
        <div id="loginDiv" style="position: absolute;right: 20px;top: 20px;">
             歡迎你，[超級管理員],你使用[192.156.21.22]IP登陸!
        </div>
        
        <div id="themesDiv" style="position: absolute;right: 20px;top:40px;">
            <a href="javascript:void(0)" id="mb" class="easyui-menubutton"     
                    data-options="menu:'#Themesmeus',iconCls:'icon-edit'">切換風格</a>   
            <div id="Themesmeus" style="width:150px;">   
                <div>default</div>   
                <div>gray</div>   
                <div>black</div>   
                <div>bootstrap</div>   
                <div>material</div>   
                <div>metro</div>   
            </div>  
        </div>        
    </div>   
    
    <!-- 底部 -->
    <div data-options="region:'south',split:true" style="height:30px;">
        <div id="copyrightDiv" style="text-align: center;">
            booleanbl出品&copy;2018版權全部
        </div>
    </div>   
    
     <!-- 左邊系統菜單 -->
    <div data-options="region:'west',title:'系統菜單',split:true" style="width:200px;">
        <div id="aa" class="easyui-accordion" style="width:193px;" data-options="border:0,multiple:true" >   

            <div title="系統管理" data-options="iconCls:'icon-reload',selected:true" style="padding:10px;">
               <ul>
                    <li><a href="javascript:void(0)" pageUrl="customer_manage.jsp">客戶管理</a></li>
               </ul>
            </div>     
        </div>  
    </div>   
    
    <!-- 中間編輯區域 -->
    <div data-options="region:'center'" style="padding:5px;background:#eee;">
        <div id="tt" class="easyui-tabs" style="width:500px;height:250px;" data-options="fit:true">   
            <div title="起始頁" style="padding:20px;display:none;">   
               歡迎登陸booleanbl客戶關係管理系統
            </div>     
        </div>  
    </div> 
    
    
    <script type="text/javascript">
        $(function(){
            //給a標籤綁定時間
            $("a[pageUrl]").click(function(){
                //1.獲取pageUrl屬性值（須要跳轉的頁面地址）
                var pageUrl = $(this).attr("pageUrl");
                //獲取a標籤的內容，標題
                var title = $(this).text();

                //2.判斷是否存在指定標題的選項卡
                if( $("#tt").tabs("exists",title)  )  {
                    //3.若是存在，則選項該選項卡
                    $("#tt").tabs("select",title);                
                }else{
                    //4.若是不存在，則添加選項卡
                    $("#tt").tabs("add",{
                        title:title,
                        content:"<iframe src='"+pageUrl+"' width='100%' height='100%' frameborder='0'><iframe>",
                        closable:true
                    });                
                }
            });
            
            //點擊切換模塊菜單的時候，進行切換模塊
            $("#Themesmeus").menu({
                onClick:function(item){
                    //1.獲取須要改變的模塊名稱
                    var themeName = item.text;
                    
                    //2.獲取link標籤的href屬性
                    var href= $("#themeLink").attr("href");
                    
                    //3.更改href的屬性值
                    // easyui/themes/default/easyui.css
                    href = href.substring(0,href.indexOf("themes"))+"themes/"+themeName+"/easyui.css";
                    
                    //4.更新link的href屬性
                    $("#themeLink").attr("href",href);
                }
            });
        });
    
    </script>  
  </body>  
</html>

16.2 customer_manage.jsp

咱們須要詳情頁，代碼以下

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>客戶管理</title>   
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!-- 導入easyui的資源文件 -->
    <script type="text/javascript" src="easyui/jquery.min.js"></script>
    <script type="text/javascript" src="easyui/jquery.easyui.min.js"></script>
    <script type="text/javascript" src="easyui/locale/easyui-lang-zh_CN.js"></script>
    <link rel="stylesheet" type="text/css" href="easyui/themes/icon.css">
    <link id="themeLink" rel="stylesheet" type="text/css" href="easyui/themes/default/easyui.css">
  </head>
  
  <body>
      <table id="list"></table>
      
      <!-- 工具條 -->
      <div id="tb">
        <a id="addBtn" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-add',plain:true">添加</a>
        <a id="editBtn" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-edit',plain:true">修改</a>
        <a id="deleteBtn" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-remove',plain:true">刪除</a>
    </div>
    
    <!-- 編輯窗口 -->
    <div id="win" class="easyui-window" title="客戶數據編輯" style="width:500px;height:300px"   
        data-options="iconCls:'icon-save',modal:true,closed:true">   
        <form id="editForm" method="post">
            <%--提供id隱藏域 --%>
            <input type="hidden" name="id">
              客戶姓名：<input type="text" name="name" class="easyui-validatebox" data-options="required:true"/><br/>
              客戶性別：
              <input type="radio" name="gender" value="男"/>男
              <input type="radio" name="gender" value="女"/>女
              <br/>
              客戶手機：<input type="text" name="telephone" class="easyui-validatebox" data-options="required:true"/><br/>
              客戶住址：<input type="text" name="address" class="easyui-validatebox" data-options="required:true"/><br/>
          <a id="saveBtn" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-save'">保存</a>
      </form> 
    </div>  
  
      <script type="text/javascript">
          $(function(){
              $("#list").datagrid({
                  //url:後臺數據查詢的地址
                  url:"customer/list.action",
                  //columns：填充的列數據
                      //field:後臺對象的屬性
                      //tille:列標題
                  columns:[[
                      {
                          field:"id",
                          title:"客戶編號",
                          width:100,
                          checkbox:true
                      },
                      {
                          field:"name",
                          title:"客戶姓名",
                          width:200
                      },
                      {
                          field:"gender",
                          title:"客戶性別",
                          width:200
                      },
                      {
                          field:"telephone",
                          title:"客戶手機",
                          width:200
                      },
                      {
                          field:"address",
                          title:"客戶住址",
                          width:200
                      }
                  ]],
                  //顯示分頁
                  pagination:true,
                  //工具條
                  toolbar:"#tb"
              });
              
              //打開編輯窗口
              $("#addBtn").click(function(){
                  //清空表單數據
                  $("#editForm").form("clear");
                  $("#win").window("open");
              });
              
              //保存數據
              $("#saveBtn").click(function(){
                  $("#editForm").form("submit",{
                      //url: 提交到後臺的地址
                      url:"customer/save.action",
                      //onSubmit: 表單提交前的回調函數，true：提交表單   false：不提交表單
                      onSubmit:function(){
                          //判斷表單的驗證是否都經過了
                          return $("#editForm").form("validate");
                      },
                      //success:服務器執行完畢回調函數
                      success:function(data){ //data: 服務器返回的數據，類型字符串類
                          //要求Controller返回的數據格式：  
                          //成功：{success:true} 失敗:{success:false,msg:錯誤信息}
                          
                          //把data字符串類型轉換對象類型
                          data = eval("("+data+")");
                          
                          if(data.success){
                              //關閉窗口
                              $("#win").window("close");
                              //刷新datagrid
                              $("#list").datagrid("reload");
                              
                              $.messager.alert("提示","保存成功","info");
                          }else{
                              $.messager.alert("提示","保存失敗："+data.msg,"error");
                          }
                       }
                  });
                  
              });
              
              //修改數據
              $("#editBtn").click(function(){
                  //判斷只能選擇一行
                  var rows = $("#list").datagrid("getSelections");
                  if(rows.length!=1){
                      $.messager.alert("提示","修改操做只能選擇一行","warning");
                      return;
                  }
                  
                  //表單回顯
                  $("#editForm").form("load","customer/findById.action?id="+rows[0].id);
                  
                  $("#win").window("open");
              });
              
              //刪除
              $("#deleteBtn").click(function(){
                  var rows =$("#list").datagrid("getSelections");
                  if(rows.length==0){
                      $.messager.alert("提示","刪除操做至少選擇一行","warning");
                      return;
                  }
                  
                  //格式： id=1&id=2&id=3
                  $.messager.confirm("提示","確認刪除數據嗎?",function(value){
                      if(value){
                          var idStr = "";
                          //遍歷數據
                          $(rows).each(function(i){
                              idStr+=("id="+rows[i].id+"&");
                          });
                          idStr = idStr.substring(0,idStr.length-1);
                        
                          //傳遞到後臺
                          $.post("customer/delete.action",idStr,function(data){
                              if(data.success){
                                    //刷新datagrid
                                    $("#list").datagrid("reload");
                                    
                                    $.messager.alert("提示","刪除成功","info");
                                }else{
                                    $.messager.alert("提示","刪除失敗："+data.msg,"error");
                                }
                          },"json");
                      }
                  });
              });
          });
      
      </script>
  </body>
</html>