ssm框架的搭建实现CRUD的操作

2022-10-31 18:44:09

最近在开发公司的一个系统，系统的框架是用ssm的框架搭建的，当然和这次写博客的不一样，它拥有很多的配置文件，企业级的开发所需要的配置文件是非常繁琐的，今天记录一下一个简单的SSM框架的搭建和实现一个CRUD的操作。

使用的是Maven插件来配置我们需要的jar包，由于操作不多，所以并没有配置很多，要注意自己使用的jdk的版本，选择不同版本号的jdk

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>com.lr</groupId>

  <artifactId>ssm</artifactId>

  <packaging>war</packaging>

  <version>0.0.1-SNAPSHOT</version>

  <name>ssm Maven Webapp</name>

  <url>http://maven.apache.org</url>

  <!-- 用来设置版本号 -->

    <properties>

        <srping.version>4.0.2.RELEASE</srping.version>

        <mybatis.version>3.2.8</mybatis.version>

        <slf4j.version>1.7.12</slf4j.version>

        <log4j.version>1.2.17</log4j.version>

    </properties>

    <!-- 用到的jar包 -->

    <dependencies>

        <!-- 单元测试 -->

        <dependency>

            <groupId>junit</groupId>

            <artifactId>junit</artifactId>

            <version>4.11</version>

            <!-- 表示开发的时候引入，发布的时候不会加载此包 -->

            <scope>test</scope>

        </dependency>

        <!-- java ee包 -->

        <dependency>

            <groupId>javax</groupId>

            <artifactId>javaee-api</artifactId>

            <version>7.0</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->

        <dependency>

            <groupId>com.fasterxml.jackson.core</groupId>

            <artifactId>jackson-databind</artifactId>

            <version>2.8.8</version>

        </dependency>

        <!-- spring框架包 start -->

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-test</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-core</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-oxm</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-tx</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-jdbc</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-aop</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-context</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-context-support</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-expression</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-orm</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-web</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-webmvc</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-aspects</artifactId>

            <version>${srping.version}</version>

        </dependency>

        <!-- spring框架包 end -->

        <!-- mybatis框架包 start -->

        <dependency>

            <groupId>org.mybatis</groupId>

            <artifactId>mybatis</artifactId>

            <version>${mybatis.version}</version>

        </dependency>

        <dependency>

            <groupId>org.mybatis</groupId>

            <artifactId>mybatis-spring</artifactId>

            <version>1.2.2</version>

        </dependency>

        <!-- mybatis框架包 end -->

        <!-- 数据库驱动 -->

        <dependency>

            <groupId>mysql</groupId>

            <artifactId>mysql-connector-java</artifactId>

            <version>5.1.35</version>

        </dependency>

        <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->

        <dependency>

            <groupId>commons-dbcp</groupId>

            <artifactId>commons-dbcp</artifactId>

            <version>1.4</version>

        </dependency>

        <!-- jstl标签类 -->

        <dependency>

            <groupId>jstl</groupId>

            <artifactId>jstl</artifactId>

            <version>1.2</version>

        </dependency>

        <dependency>

            <groupId>taglibs</groupId>

            <artifactId>standard</artifactId>

            <version>1.1.2</version>

        </dependency>

        <!-- log start -->

        <dependency>

            <groupId>log4j</groupId>

            <artifactId>log4j</artifactId>

            <version>${log4j.version}</version>

        </dependency>

        <dependency>

            <groupId>org.slf4j</groupId>

            <artifactId>slf4j-api</artifactId>

            <version>${slf4j.version}</version>

        </dependency>

        <dependency>

            <groupId>org.slf4j</groupId>

            <artifactId>slf4j-log4j12</artifactId>

            <version>${slf4j.version}</version>

        </dependency>

        <!-- log END -->

        <!-- Json -->

        <!-- 格式化对象，方便输出日志 -->

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>fastjson</artifactId>

            <version>1.2.6</version>

        </dependency>

        <dependency>

            <groupId>org.codehaus.jackson</groupId>

            <artifactId>jackson-mapper-asl</artifactId>

            <version>1.9.13</version>

        </dependency>

        <!-- 上传组件包 start -->

        <dependency>

            <groupId>commons-fileupload</groupId>

            <artifactId>commons-fileupload</artifactId>

            <version>1.3.1</version>

        </dependency>

        <dependency>

            <groupId>commons-io</groupId>

            <artifactId>commons-io</artifactId>

            <version>2.4</version>

        </dependency>

        <dependency>

            <groupId>commons-codec</groupId>

            <artifactId>commons-codec</artifactId>

            <version>1.10</version>

        </dependency>

        <!-- 上传组件包 end -->  

        <!-- AL相关添加 -->

        <dependency>

            <groupId>net.sourceforge.jexcelapi</groupId>

            <artifactId>jxl</artifactId>

            <version>2.6</version>

        </dependency>

        <dependency>

            <groupId>org.apache.poi</groupId>

            <artifactId>poi</artifactId>

            <version>3.8</version>

        </dependency>

        <dependency>

            <groupId>org.apache.poi</groupId>

            <artifactId>poi-ooxml</artifactId>

            <version>3.9</version>

        </dependency>

        <!-- AL相关添加 -->

    </dependencies>  

     <build>

        <finalName>Maven_Project</finalName>

        <plugins>

            <plugin>

                <groupId>org.apache.maven.plugins</groupId>

                <artifactId>maven-compiler-plugin</artifactId>

                <version>2.3.2</version>

                <configuration>

                    <source>1.7</source>

                    <target>1.7</target>

                </configuration>

            </plugin>

        </plugins>

    </build>

</project>

然后配置数据库的连接，改成自己的数据库就行了

driver=com.mysql.jdbc.Driver

url=jdbc\:mysql\://locahost\:3306/db

username=root

password=root

maxActive=20

maxIdle=20

minIdle=1

maxWait=60000

配置文件spring-dao.xml，Spring会自动查找其下的类

<?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:p="http://www.springframework.org/schema/p"

    xmlns:context="http://www.springframework.org/schema/context"

    xmlns:mvc="http://www.springframework.org/schema/mvc"

    xsi:schemaLocation="http://www.springframework.org/schema/beans

                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd

                        http://www.springframework.org/schema/context

                        http://www.springframework.org/schema/context/spring-context-3.1.xsd

                        http://www.springframework.org/schema/mvc

                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">  

    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

        <!--basePackage指定要扫描的包，在此包之下的映射器都会被搜索到。

         可指定多个包，包与包之间用逗号或分号分隔-->

        <property name="basePackage" value="com.lr.dao" />

        <property name="sqlSessionFactory" ref="sqlSessionFactory"></property>

    </bean>                         

</beans>

配置文件Spring和Mybatis的整合文件

<?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:p="http://www.springframework.org/schema/p"

    xmlns:context="http://www.springframework.org/schema/context"

    xmlns:mvc="http://www.springframework.org/schema/mvc"

    xsi:schemaLocation="http://www.springframework.org/schema/beans

                        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd

                        http://www.springframework.org/schema/context

                        http://www.springframework.org/schema/context/spring-context-4.0.xsd

                        http://www.springframework.org/schema/mvc

                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">  

    <!-- 引入配置文件 -->

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

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">

        <property name="driverClassName" value="com.mysql.jdbc.Driver" />

        <property name="url" value="jdbc:mysql://localhost:3306/db?useUnicode=true&amp;characterEncoding=utf8" />

        <property name="username" value="root" />

        <property name="password" value="root" />

        <!-- 初始化连接大小 -->

        <property name="initialSize" value="3" />

        <!-- 连接池最大数量 -->

        <property name="maxActive" value="20" />

        <!-- 连接池最大空闲 -->

        <property name="maxIdle" value="20" />

        <!-- 连接池最小空闲 -->

        <property name="minIdle" value="1" />

        <!-- 获取连接最大等待时间 -->

        <property name="maxWait" value="60000" />

    </bean>  

    <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

        <property name="dataSource" ref="dataSource" />

        <!-- 自动扫描mapping.xml文件 -->

        <property name="mapperLocations" value="classpath:com/lr/mapper/*.xml"></property>

    </bean>  

</beans>

配置事物的文件

<?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:p="http://www.springframework.org/schema/p"

    xmlns:context="http://www.springframework.org/schema/context"

    xmlns:aop="http://www.springframework.org/schema/aop"

    xmlns:tx="http://www.springframework.org/schema/tx"

    xmlns:mvc="http://www.springframework.org/schema/mvc"

    xsi:schemaLocation="http://www.springframework.org/schema/beans

                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd

                        http://www.springframework.org/schema/context

                        http://www.springframework.org/schema/context/spring-context-3.1.xsd

                        http://www.springframework.org/schema/aop

                        http://www.springframework.org/schema/aop/spring-aop-3.1.xsd

                        http://www.springframework.org/schema/tx

                        http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">  

    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->

    <bean id="transactionManager"

        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

        <property name="dataSource" ref="dataSource" />

    </bean>  

     <!--  配置参与事务的类 -->

     <aop:config>

         <aop:pointcut id="allServiceMethod" expression="execution(* com.lr.service.*.*(..))"/>

         <aop:advisor pointcut-ref="allServiceMethod" advice-ref="txAdvice" />

     </aop:config>  

    <!-- 使用声明方式配置事务 -->

    <tx:advice id="txAdvice" transaction-manager="transactionManager">

         <tx:attributes>

               <tx:method name="*" propagation="REQUIRED" rollback-for="java.lang.Exception"/>

         </tx:attributes>

    </tx:advice>  

</beans>

配置Springmvc.xml文件

<?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:p="http://www.springframework.org/schema/p"

    xmlns:context="http://www.springframework.org/schema/context"

    xmlns:mvc="http://www.springframework.org/schema/mvc"

    xsi:schemaLocation="http://www.springframework.org/schema/beans

                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd

                        http://www.springframework.org/schema/context

                        http://www.springframework.org/schema/context/spring-context-3.1.xsd

                        http://www.springframework.org/schema/mvc

                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">  

    <!-- 自动扫描 -->

    <context:component-scan base-package="com.lr.controller" />  

    <mvc:annotation-driven />  

    <mvc:default-servlet-handler/>

    <!-- 定义跳转的文件的前后缀 ，视图模式配置-->

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  

        <property name="prefix" value="/WEB-INF/jsp/" />

        <property name="suffix" value=".jsp" />

    </bean>

好了！！！需要配置的文件已经配置完成了，足够我们进行一波操作了

接下来是后台的一些代码，这里主要是实体类，dao层，service层，controller层，我把后台的文件一起上传了，mapper.xml文件是实现方法最关键的地方

package com.lr.dto;

public class User {

    private Integer id;

    private String name;

    private String password;

    private Integer age;

    public User() {

        super();

    }

    public User(String name, String password, Integer age) {

        super();

        this.name = name;

        this.password = password;

        this.age = age;

    }

    public User(Integer id, String name, String password, Integer age) {

        super();

        this.id = id;

        this.name = name;

        this.password = password;

        this.age = age;

    }

    @Override

    public String toString() {

        return "User [id=" + id + ", name=" + name + ", password=" + password + ", age=" + age + "]";

    }

    public Integer getId() {

        return id;

    }

    public void setId(Integer id) {

        this.id = id;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public String getPassword() {

        return password;

    }

    public void setPassword(String password) {

        this.password = password;

    }

    public Integer getAge() {

        return age;

    }

    public void setAge(Integer age) {

        this.age = age;

    }

}
<?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" >

<mapper namespace="com.lr.dao.IUserDao">

    <resultMap id="BaseResultMap" type="com.lr.dto.User">

        <result column="id" property="id" jdbcType="INTEGER" />

        <result column="name" property="name" jdbcType="VARCHAR" />

        <result column="password" property="password" jdbcType="VARCHAR" />

        <result column="age" property="age" jdbcType="INTEGER" />

    </resultMap>

    <sql id="Base_Column_List">

        id, name, password, age

    </sql>  

      <!--   增加用户 -->

      <insert id="addUser" parameterType="com.lr.dto.User">

        insert into user(name,password,age) values(#{name},#{password},#{age})

    </insert>

     <!-- 查询用户-->

    <select id="queryByPrimaryKey" resultMap="BaseResultMap"

        parameterType="java.lang.Integer">

        select

        <include refid="Base_Column_List" />

        from user

        where id = #{id}

    </select>  

     <!-- 删除用户 -->

    <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">

        delete from user

        where id = #{id}

    </delete>  

    <!-- 更新用户 -->

    <update id="updateByPrimaryKey" parameterType="com.lr.dto.User" >

        update user set name=#{name},password=#{password},age=#{age} where id=#{id}

    </update>  

    <select id="findallUser" resultType="com.lr.dto.User">

        select * from user

    </select>

</mapper>
package com.lr.dao;

import java.util.List;

import com.lr.dto.User;

public interface IUserDao {

     //查询用户

    public User queryByPrimaryKey(int id);

     //删除用户

    public int deleteByPrimaryKey(int id);

    //更新用户

    public int updateByPrimaryKey(User user);

    //添加用户

    public int addUser(User user);

    //查询所有用户

    public List<User> findallUser();

}
package com.lr.service;

import java.util.List;

import com.lr.dto.User;

public interface IUserService {

    //查询用户

     public User getUserById(int userId);

     //删除

     public void deleteUser(int id);

     //更新用户

     public void updateUser(User user);

    //添加用户

     public void addUser(User user);

     //查看所有用户

     public List<User> findallUser();

}
package com.lr.service.Impl;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;

import com.lr.dao.IUserDao;

import com.lr.dto.User;

import com.lr.service.IUserService;

@Service("userService")

public class UserServiceImpl implements IUserService{

    @Resource

    private IUserDao userdao;

    public IUserDao getUserdao() {

        return userdao;

    }

    public void setUserdao(IUserDao userdao) {

        this.userdao = userdao;

    }

    //查询用户

    @Override

    public User getUserById(int userId) {

        return userdao.queryByPrimaryKey(userId);

    }

    //更新用户

    @Override

    public void updateUser(User user) {

        userdao.updateByPrimaryKey(user);

    }

    //删除用户

    @Override

    public void deleteUser(int id) {

        userdao.deleteByPrimaryKey(id);

    }

    //添加用户

    @Override

    public void addUser(User user) {

        userdao.addUser(user);

    }

    //查询所有用户

    @Override

    public List<User> findallUser() {

        return userdao.findallUser();

    }

}
package com.lr.controller;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

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

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

import com.lr.dto.User;

import com.lr.service.IUserService;

@Controller

public class UserController {

    @Autowired

    private IUserService userService;

    public IUserService getUserService() {

        return userService;

    }

    public void setUserService(IUserService userService) {

        this.userService = userService;

    }  

    //主页面

    @RequestMapping("/")

    public String userMgr() {

        return "showUser";

    }

    //添加用户

    @RequestMapping("/addUser")

    @ResponseBody

    public void userAdd(User user) {

        userService.addUser(user);

    }

    //删除用户

    @RequestMapping("/deleteUser")

    @ResponseBody

    public void deleteUser(int id){

        userService.deleteUser(id);

    }

    //修改用户

    @RequestMapping("/updateUser")

    @ResponseBody

    public void upadteUser(User user){

        userService.updateUser(user);

    }

    //根据id查找用户

    @RequestMapping("/showUser")

    @ResponseBody

    public User showUser(int id,Model model){

         return userService.getUserById(id);

    }

    //查询所有用户

    @RequestMapping("/findallUser")

    @ResponseBody

    public List<User> findallUser(){

        return userService.findallUser();

    }

}

最后是前端，因为随便写的，前端有些low，请不要针对我胖虎！！！！！

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

<!DOCTYPE HTML>

<html>

  <head>

    <meta charset="utf-8"><script type="text/javascript" src="<%= application.getContextPath() %>/js/jquery-1.12.4.min.js"></script>

    <script type="text/javascript">

    //添加用户

        $(function(){

            $("#add").on("click", addNewUser);

        })

        function addNewUser(){

            var name = $.trim($("#txtName").val());

            var password = $.trim($("#txtPassword").val());

            var age = $.trim($("#txtAge").val());

            $.post("/ssm/addUser", {"name": name, "password": password, "age": age}, function(){

                alert("添加成功！")

            });

        }

    //删除用户

        $(function(){

            $("#delete").on("click",deleteUser);

        })

        function deleteUser(){

            var id=$.trim($("#deleteid").val());

            $.get("/ssm/deleteUser",{"id":id},function(){

                alert("删除成功！")

            });

        }

    //查询所有用户

        $(function(){

            $("#findalluser").click(function(){

                $.ajax({

                    type:"POST",

                    dataType:"json",

                    url:"/ssm/findallUser",

                    success:function(msg){

                        var str="";

                        for(i in msg){

                            str+="<tr><th>"+msg[i].id+"</th><th>"+msg[i].name+"</th><th>"

                            +msg[i].password+"</th><th>"+msg[i].age+"</th><tr>"

                        }

                        $("#findall").append(str);

                    }

                });

            });

        });

        //根据id查找一个用户

        $(function(){

            $("#find").click(function(){

                $.ajax({

                    type:"POST",

                    data:{id:$("#findid").val()},

                    dataType:"json",

                    url:"/ssm/showUser",

                    success:function(user){

                        var str="";

                            str+="<tr><th>"+user.id+"</th><th>"+user.name+"</th><th>"

                            +user.password+"</th><th>"+user.age+"</th><tr>"

                        $("#finduserbyid").append(str);

                    }

                })

            })

        })

        //根据id修改用户信息

        $(function(){

            $("#update").on("click",updateUser);

        })

        function updateUser(){

             alert($.trim($("#updateid").val()))

            alert($.trim($("#updatename").val()))

            alert($.trim($("#updatepassword").val()))

            alert($.trim($("#updateage").val())) 

            var id=$.trim($("#updateid").val());

            var name=$.trim($("#updatename").val());

            var password=$.trim($("#updatepassword").val());

            var age=$.trim($("#updateage").val());

            $.post("/ssm/updateUser",{"id":id,"name":name,"password":password,"age":age},function(){

                alert("修改成功！")

            });

        }

    </script>

  <title>用户管理</title>

  </head>

  <body>

    <div>

        <p>姓名：<input type="text" id="txtName"></p>

        <p>密码：<input type="password" id="txtPassword"></p>

        <p>年龄：<input type="text" id="txtAge"></p>

        <p><button id="add">添加</button></p>

    </div>

    <hr style="height:1px;border:none;border-top:1px dashed #0066CC;" />

    <div>

        <p>输入用户id:<input type="text" id="deleteid"></p>

        <p><button id="delete">删除</button></p>

    </div>

    <hr style="height:1px;border:none;border-top:1px dashed #0066CC;" />

    <div><p><button id="findalluser">查询所有</button></p></div>

    <div>

        <table width="300" border="1" >

            <thead id="findall">

                <tr>

                    <th width="50">id</th>

                    <th width="50">姓名</th>

                    <th width="50">密码</th>

                    <th width="50">年龄</th>

                </tr>

            </thead>

        </table>

    </div>

    <hr style="height:1px;border:none;border-top:1px dashed #0066CC;" />

    <div>

        <p>输入用户id:<input type="text" id="findid"></p>

        <p><button id="find">查询</button></p>

    </div>

     <div>

        <table width="300" border="1" >

            <thead id="finduserbyid">

                <tr>

                    <th width="50">id</th>

                    <th width="50">姓名</th>

                    <th width="50">密码</th>

                    <th width="50">年龄</th>

                </tr>

            </thead>

        </table>

    </div>

    <hr style="height:1px;border:none;border-top:1px dashed #0066CC;" />

    <div>

        <p>输入用户id:<input type="text" id="updateid"></p>

        <p>输入用户姓名:<input type="text" id="updatename"></p>

        <p>输入密码：<input type="password" id="updatepassword"></p>

        <p>输入用户年龄:<input type="password" id="updateage"></p>

        <p><button id="update">修改</button></p>

    </div>

  </body>

</html>

好了！！！到此为止一个简单的SSM框架就搭建完成了，实现了一个简单的CRUD的功能，有非常多的扩展功能，需要我们一步一步的去开发

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