MyEclipse使用Maven创建web项目+搭建SSM框架

版权声明：本文为博主原创文章，未经博主允许不得转载。

目录(?)[-]

1. 安装maven和配置
2. MyEclipse配置Maven
3. MyEclipse使用maven创建web项目
4. 搭建SpringSpringMVCMybatis框架
5. 常见问题

使用maven已经有一段时间了，但项目是别人搭建好的，因此一直想着自己要学习搭建一下。网上找了些资料后，结合自己实验，花了点时间就搞好，老样子，写在博客上，免得日后忘记。

博文中的代码：链接：http://pan.baidu.com/s/1o8tqIMI 密码：m3si

1.安装maven和配置

1、下载maven.apache.org/download.html，下载apache-maven-3.1.1-bin.zip，**-src.zip为Maven的源码

2、配置环境变量，打开系统环境变量新建一个M2_HOME将解压后的Maven存放路径放在此，然后在path路径下加

入史%M2_HOME%\bin路径

3、检测是否配置成功，打开命令行输入echo %M2_HOME%查看M2_HOME指向的Maven存放安装目录是否正

确，输入mvn -v查看是否能找到正确的mvn执行脚本

4、以后升级的话将M2_HOME的路径换为最新的安装目录就行

5、Maven实践：初次安装完后输入mvn help:system的命令，此时会打印出所有的Java系统属性和环境变量，然后

Maven会执行一个真正的任务将相应的所需的构件下载到本地仓库中包括pom和jar文件，然后用户在

C:\Users\Administrator\.m2下就能看到本地仓库了

6、用户需要复制M2_HOME/conf/setting.xml文件到C:/Users/Administrator/.m2/setting.xml，这样用户每次升

级后就不要在次修改setting.xml文件了

2.MyEclipse配置Maven

1、在本地创建一个文件夹MavenRepository，并在MavenRepository文件夹下创建文件夹repo。

2、进入Maven解压后的文件夹，进入conf文件夹，将settings.xml文件复制到上一步创建的MavenRepository文件

夹下

3、打开MavenRepository文件夹下的settings.xml文件，找到localRepository标签，此时是被注释掉的，我们解除

注释，然后配置步骤1中的repo路径，如E:\MavenRepository\repo

4、在MyEclipse中的Perferences进行如下配置，添加自己的Maven

5、User Settings设置为之前修改过的setting.xml

6、File->New->others，搜索maven，如果看到有Maven Project则代表配置成功。

3.MyEclipse使用maven创建web项目

1、创建一个maven项目

2、按照上面教程，即可创建出一个Maven项目，项目结构如下图

3、将JRE版本设置为1.7，可使用默认的或者自己导入

4、此时index.jsp会报以下错误

在pom.xml文件的dependencies节点下添加如下代码即可，添加完后，会下载对应的jar包

5、右键项目，选择Properties，进行如下配置

4.搭建Spring+SpringMVC+Mybatis框架

1、Maven引入项目用到的jar包，修改pom.xml后保存会自动下载，存放在之前配置的本地仓库中，即：

E:\MavenRepository\repo文件夹

pom.xml

 <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>4.0.0modelVersion>
     <groupId>com.chillaxgroupId>
     <artifactId>Maven_ProjectartifactId>
     <packaging>warpackaging>
     <version>0.0.1-SNAPSHOTversion>
     <name>Maven_Project Maven Webappname>
     <url>http://maven.apache.orgurl>


     <properties>
         <srping.version>4.0.2.RELEASEsrping.version>
         <mybatis.version>3.2.8mybatis.version>
         <slf4j.version>1.7.12slf4j.version>
         <log4j.version>1.2.17log4j.version>
     properties>

     <dependencies>

         <dependency>
             <groupId>junitgroupId>
             <artifactId>junitartifactId>
             <version>4.11version>

             <scope>testscope>
         dependency>

         <dependency>
             <groupId>javaxgroupId>
             <artifactId>javaee-apiartifactId>
             <version>7.0version>
         dependency>

         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-testartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-coreartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-oxmartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-txartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-jdbcartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-aopartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-contextartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-context-supportartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-expressionartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-ormartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-webartifactId>
             <version>${srping.version}version>
         dependency>
         <dependency>
             <groupId>org.springframeworkgroupId>
             <artifactId>spring-webmvcartifactId>
             <version>${srping.version}version>
         dependency>


         <dependency>
             <groupId>org.mybatisgroupId>
             <artifactId>mybatisartifactId>
             <version>${mybatis.version}version>
         dependency>
         <dependency>
             <groupId>org.mybatisgroupId>
             <artifactId>mybatis-springartifactId>
             <version>1.2.2version>
         dependency>


         <dependency>
             <groupId>mysqlgroupId>
             <artifactId>mysql-connector-javaartifactId>
             <version>5.1.35version>
         dependency>

         <dependency>
             <groupId>commons-dbcpgroupId>
             <artifactId>commons-dbcpartifactId>
             <version>1.4version>
         dependency>

         <dependency>
             <groupId>jstlgroupId>
             <artifactId>jstlartifactId>
             <version>1.2version>
         dependency>

         <dependency>
             <groupId>log4jgroupId>
             <artifactId>log4jartifactId>
             <version>${log4j.version}version>
         dependency>
         <dependency>
             <groupId>org.slf4jgroupId>
             <artifactId>slf4j-apiartifactId>
             <version>${slf4j.version}version>
         dependency>
         <dependency>
             <groupId>org.slf4jgroupId>
             <artifactId>slf4j-log4j12artifactId>
             <version>${slf4j.version}version>
         dependency>



         <dependency>
             <groupId>com.alibabagroupId>
             <artifactId>fastjsonartifactId>
             <version>1.2.6version>
         dependency>
         <dependency>
             <groupId>org.codehaus.jacksongroupId>
             <artifactId>jackson-mapper-aslartifactId>
             <version>1.9.13version>
         dependency>

         <dependency>
             <groupId>commons-fileuploadgroupId>
             <artifactId>commons-fileuploadartifactId>
             <version>1.3.1version>
         dependency>
         <dependency>
             <groupId>commons-iogroupId>
             <artifactId>commons-ioartifactId>
             <version>2.4version>
         dependency>
         <dependency>
             <groupId>commons-codecgroupId>
             <artifactId>commons-codecartifactId>
             <version>1.10version>
         dependency>

     dependencies>

     <build>
       <finalName>Maven_ProjectfinalName>
     build>
 project>

2、在src/main/resources下添加如下配置文件

applicationContext.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: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">


     <context:annotation-config />


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


     <import resource="spring-dao.xml"/>


     <import resource="spring-db.xml"/>


     <import resource="spring-tx.xml"/>

 beans>

jdbc.properties，有多人反映直接复制时，第一行的driver最后面多了个空格，请注意

 driver=com.mysql.jdbc.Driver
 url=jdbc:mysql://127.0.0.1:3306/maventest
 username=root
 password=root
 #定义初始连接数
 initialSize=0
 #定义最大连接数
 maxActive=20
 #定义最大空闲
 maxIdle=20
 #定义最小空闲
 minIdle=1
 #定义最长等待时间
 maxWait=60000

log4j.properties

 #定义LOG输出级别
 log4j.rootLogger=INFO,Console,File
 #定义日志输出目的地为控制台
 log4j.appender.Console=org.apache.log4j.ConsoleAppender
 log4j.appender.Console.Target=System.out
 #可以灵活地指定日志输出格式，下面一行是指定具体的格式
 log4j.appender.Console.layout = org.apache.log4j.PatternLayout
 log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n

 #文件大小到达指定尺寸的时候产生一个新的文件
 log4j.appender.File = org.apache.log4j.RollingFileAppender
 #指定输出目录
 log4j.appender.File.File = logs/ssm.log
 #定义文件最大大小
 log4j.appender.File.MaxFileSize = 10MB
 # 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志
 log4j.appender.File.Threshold = ALL
 log4j.appender.File.layout = org.apache.log4j.PatternLayout
 log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

spring-dao.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: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">



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

     <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
         <property name="location" value="classpath:jdbc.properties" />
     bean>

     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
         <property name="driverClassName" value="${driver}" />
         <property name="url" value="${url}" />
         <property name="username" value="${username}" />
         <property name="password" value="${password}" />

         <property name="initialSize" value="${initialSize}">property>

         <property name="maxActive" value="${maxActive}">property>

         <property name="maxIdle" value="${maxIdle}">property>

         <property name="minIdle" value="${minIdle}">property>

         <property name="maxWait" value="${maxWait}">property>
     bean>


     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <property name="dataSource" ref="dataSource" />

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

 beans>

spring-tx.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: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">


     <bean id="transactionManager"
         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <property name="dataSource" ref="dataSource" />
     bean>

 beans>

3、在WEB-INF文件夹下添加/修改以下配置文件

spring-mvc.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: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">


     <bean id="mappingJacksonHttpMessageConverter"
         class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
         <property name="supportedMediaTypes">
             <list>
                 <value>text/html;charset=UTF-8value>
             list>
         property>
     bean>


     <mvc:annotation-driven />
     <mvc:default-servlet-handler/>


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


     <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
         <property name="messageConverters">
             <list>
                 <ref bean="mappingJacksonHttpMessageConverter" />
             list>
         property>
     bean>


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

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


     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

         <property name="defaultEncoding" value="utf-8" />

         <property name="maxUploadSize" value="10485760000" />

         <property name="maxInMemorySize" value="40960" />
     bean>

 beans>

web.xml

 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"
     version="3.0">
     <display-name>Archetype Created Web Applicationdisplay-name>

     <welcome-file-list>
         <welcome-file>/index.jspwelcome-file>
     welcome-file-list>


     <context-param>
          <param-name>contextConfigLocationparam-name>
         <param-value>classpath:applicationContext.xmlparam-value>
     context-param>
     <listener>
         <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
     listener>


     <filter>
         <filter-name>encodingFilterfilter-name>
         <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
         <async-supported>trueasync-supported>
         <init-param>
             <param-name>encodingparam-name>
             <param-value>UTF-8param-value>
         init-param>
     filter>
     <filter-mapping>
         <filter-name>encodingFilterfilter-name>
         <url-pattern>/*url-pattern>
     filter-mapping>


     <servlet>
         <servlet-name>SpringMVCservlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
         <init-param>
             <param-name>contextConfigLocationparam-name>
             <param-value>/WEB-INF/spring-mvc.xmlparam-value>
         init-param>
         <load-on-startup>1load-on-startup>
         <async-supported>trueasync-supported>
     servlet>
     <servlet-mapping>
         <servlet-name>SpringMVCservlet-name>
         <url-pattern>/url-pattern>
     servlet-mapping>

 web-app>

4、在src/main/java下添加如下包和类

UserController.java

 package com.chillax.controller;

 import java.util.List;

 import javax.annotation.Resource;
 import javax.servlet.http.HttpServletRequest;

 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;

 import com.chillax.dto.User;
 import com.chillax.service.IUserService;

 @Controller
 @RequestMapping("/user")
 public class UserController {
     @Resource
     private IUserService userService;

     @RequestMapping("/userList")
     public String userList(HttpServletRequest request,Model model){
         List uList = userService.getAllUser();
         model.addAttribute("uList", uList);
         return "userList";
     }

     @RequestMapping("/showUser")
     public String showUser(HttpServletRequest request,Model model){
         int userId = Integer.parseInt(request.getParameter("id"));
         User user = userService.getUserById(userId);
         model.addAttribute("user", user);
         return "showUser";
     }

     @RequestMapping("/addUserUI")
     public String addUserUI(){
         return "addUser";
     }

     @RequestMapping("/addUser")
     public String addUser(HttpServletRequest request,Model model){
         User user = new User();
         user.setName(String.valueOf(request.getParameter("name")));
         user.setPassword(String.valueOf(request.getParameter("password")));
         user.setAge(Integer.parseInt(String.valueOf(request.getParameter("age"))));
         userService.addUser(user);
         return "redirect:/user/userList";
     }
 }

IUserDao.java

 package com.chillax.dao;

 import java.util.List;
 import java.util.Map;

 import com.chillax.dto.User;

 public interface IUserDao {

     public User queryByPrimaryKey(Integer id);

     public List queryUserByBatch(Map params);

     public void insertUser(User user);

     public void insertUserByBatch(List list);

     public void deleteByPrimaryKey(Integer id);

     public void delteUserByBatch(Map params);

     public void updateByPrimaryKey(Integer id);

     public List getAllUser();

 }

User.java

 package com.chillax.dto;

 public class User {
     private Integer id;

     private String name;

     private String password;

     private Integer 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 == null ? null : password.trim();
     }

     public Integer getAge() {
         return age;
     }

     public void setAge(Integer age) {
         this.age = age;
     }
 }

UserMapper.xml

 xml version="1.0" encoding="UTF-8" ?>
 >
 <mapper namespace="com.chillax.dao.IUserDao" >
     <resultMap id="BaseResultMap" type="com.chillax.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>


     <select id="queryByPrimaryKey" resultMap="BaseResultMap"
         parameterType="java.lang.Integer">
         select
         <include refid="Base_Column_List" />
         from user
         where id = #{id,jdbcType=INTEGER}
     select>


     <select id="getAllUser" resultMap="BaseResultMap">
         select
         <include refid="Base_Column_List" />
         from user
     select>


     <select id="queryUserByBatch" resultMap="BaseResultMap"
         parameterType="java.util.Map">
         select
         <include refid="Base_Column_List" />
         from user
         where id in
         <foreach collection="idList" item="userId" index="index" open="(" separator="," close=")">
              #{userId,jdbcType=DECIMAL}
         foreach>
     select>


     <insert id="insertUser" parameterType="com.chillax.dto.User">
         insert into user
         <trim prefix="(" suffix=")" suffixOverrides="," >
           <if test="id != null" >
             id,
           if>
           <if test="name != null" >
             name,
           if>
           <if test="password != null" >
             password,
           if>
           <if test="age != null" >
             age,
           if>
         trim>
         <trim prefix="values (" suffix=")" suffixOverrides="," >
           <if test="id != null" >
             #{id,jdbcType=INTEGER},
           if>
           <if test="name != null" >
             #{name,jdbcType=VARCHAR},
           if>
           <if test="password != null" >
             #{password,jdbcType=VARCHAR},
           if>
           <if test="age != null" >
             #{age,jdbcType=INTEGER},
           if>
         trim>
     insert>


     <insert id="insertUserByBatch" parameterType="java.util.List" >
     insert into USER
        (ID,
         NAME,
         PASSWORD,
         AGE)
     select A.* from
          (
          <foreach collection="list" item="user" index="index" separator="union">
              select
              #{user.id,jdbcType=INTEGER},
              #{user.name,jdbcType=VARCHAR},
              #{user.password,jdbcType=VARCHAR},
              #{user.age,jdbcType=INTEGER}
               from dual
          foreach>
          ) A
     insert>


     <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
         delete from user
         where id = #{id,jdbcType=INTEGER}
     delete>


     <delete id="deleteUserByBatch" parameterType="java.util.Map" >
      delete from user
      where id IN
          <foreach item="ids" collection="iList" open="(" separator="," close=")">
              #{ids,jdbcType=DECIMAL}
          foreach>
     delete>


     <update id="updateByPrimaryKey" parameterType="com.chillax.dto.User" >
         update user
         <set >
           <if test="name != null" >
             name = #{name,jdbcType=VARCHAR},
           if>
           <if test="password != null" >
             password = #{password,jdbcType=VARCHAR},
           if>
           <if test="age != null" >
             age = #{age,jdbcType=INTEGER},
           if>
         set>
         where id = #{id,jdbcType=INTEGER}
     update>

 mapper>

IUserService.java

 package com.chillax.service;

 import java.util.List;

 import com.chillax.dto.User;

 public interface IUserService {

     public User getUserById(int userId);

     public void insertUser(User user);

     public void addUser(User user);

     public List getAllUser();
 }

UserServiceImpl.java

 package com.chillax.service.Impl;

 import java.util.List;

 import javax.annotation.Resource;

 import org.springframework.stereotype.Service;

 import com.chillax.dao.IUserDao;
 import com.chillax.dto.User;
 import com.chillax.service.IUserService;

 @Service("userService")
 public class UserServiceImpl implements IUserService {
     @Resource
     private IUserDao userDao;

     public User getUserById(int userId) {
         return userDao.queryByPrimaryKey(userId);
     }

     public void insertUser(User user) {
         userDao.insertUser(user);
     }

     public void addUser(User user) {
         userDao.insertUser(user);
     }

     @Override
     public List getAllUser() {
         return userDao.getAllUser();
     }

 }

5、在WEB-INF文件夹下创建jsp文件夹，并添加userList.jsp，showUser.jsp、addUser.jsp

userList.jsp

 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
 <%
 String path = request.getContextPath();
 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 %>

 >
 <html>
   <head>
     <base href="<%=basePath%>">

     <title>My JSP 'showUser.jsp' starting pagetitle>

     <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">


   head>

   <body>
     <c:forEach items="${uList }" var="u">
         用户名称：${u.name}
         用户年龄：${u.age }
         <br/>
     c:forEach>
   body>
 html>

addUser.jsp

 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 <%
 String path = request.getContextPath();
 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 %>

 >
 <html>
   <head>
     <base href="<%=basePath%>">

     <title>My JSP 'addUser.jsp' starting pagetitle>

     <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">


   head>

   <body>
     <form id="addUser" action="user/addUser" method="post">
         userName: <input id="name" name="name" /><br/>
         password: <input id="password" name="password" /><br/>
         age: <input id="age" name="age"/><br/>
         <input type="submit" value="添加新用户"/>
     form>
   body>
 html>

showUser.jsp

 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 <%
 String path = request.getContextPath();
 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 %>

 >
 <html>
   <head>
     <base href="<%=basePath%>">

     <title>My JSP 'showUser.jsp' starting pagetitle>

     <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">


   head>

   <body>
     ${user.name }<br>
   body>
 html>

6、创建数据库，并创建表

 DROP TABLE IF EXISTS `user`;

 CREATE TABLE `user` (
   `id` int(12) NOT NULL AUTO_INCREMENT,
   `name` varchar(50) NOT NULL,
   `password` varchar(50) NOT NULL,
   `age` int(9) NOT NULL,
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8;


 insert  into `user`(`id`,`name`,`password`,`age`) values (1,'admin','admin',22);

7、整个项目文件结构图

8、部署发布项目，进行测试

至此，框架搭建完成 。

5.常见问题

问题1：pom.xml文件里的代码到哪里找？

解答：http://www.mvnrepository.com/

问题2：新建MAVEN项目过程中，出现下图错误？

解决：在MyEclipse的安装目录找到myeclipse.ini，将分配的内存加大

问题3：新建完工程后出现以下错误？

解答：在pom.xml添加以下代码即可，添加完代码就会自动下载好jar包

问题4：修改pom.xml时出现以下错误？

解答：这是由于jar包没有正确下载导致的，找到错误的jar包位置，将文件夹里的文件删掉，将pom.xml里该jar包的配置代码删除后再重新写上，让MAVEN重新下载jar包即可。

问题5：出现以下错误？

解答：

问题6：出现以下错误？

解答：将项目的jre版本换成1.7或者以上的版本即可