Maven搭建SpringMVC + SpringJDBC项目详解

前言

        上一次复习搭建了SpringMVC+Mybatis，这次搭建一下SpringMVC，采用的是SpringJDBC，没有采用任何其他的ORM框架，SpringMVC提供了一整套的WEB框架，所以如果想搭建纯的SpringMVC的话，而且不必映入别的任何框架，SpringMVC都给我们提供了，下面试Spring + SpringMVC的详细搭建过程。

      项目包含：数据库mysql(其实那个数据库都无所谓)，连接池采用的是c3p0。

1、创建数据表

    数据表很简单，user_info

          

2、搭建Maven项目

     Maven项目搭建一笔带过（前面有介绍），其搭建后的webapp结构项目如下：

         

3、配置Maven的pom.xml文件

     导入所需的spring，以及数据源，spring-mvc，json等依赖。

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>4.0.0</modelVersion>
    <groupId>org.andy.springmvc</groupId>
    <artifactId>springmvc_demo</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>

    <name>springmvc_demo Maven Webapp</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <spring.version>4.1.4.RELEASE</spring.version>
        <jackson.version>2.5.0</jackson.version>
    </properties>

    <dependencies>

        <!-- junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <!-- spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <scope>test</scope>
        </dependency>

        <!-- log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

        <!-- mysql连接 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.34</version>
        </dependency>

        <!-- c3p0数据源 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5-pre10</version>
        </dependency>

        <!-- json -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.3</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <!-- servlet -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>3.0-alpha-1</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!-- 文件上传 -->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.4</version>
        </dependency>

        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.2.2</version>
        </dependency>

    </dependencies>


    <build>
        <finalName>springmvc_demo</finalName>

        <plugins>
            <!-- Run the JUnit unit tests in an isolated classloader -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.4.2</version>
                <configuration>
                    <skipTests>true</skipTests>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.3</version>
                <configuration>
                    <webXml>src/main/webapp/WEB-INF/web.xml</webXml>
                </configuration>
            </plugin>

            <!-- generate java doc -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-javadoc-plugin</artifactId>
                <version>2.9.1</version>
                <configuration>
                    <javadocDirectory>target/javadoc</javadocDirectory>
                    <reportOutputDirectory>target/javadoc</reportOutputDirectory>
                    <charset>UTF-8</charset>
                    <encoding>UTF-8</encoding>
                    <docencoding>UTF-8</docencoding>
                    <show>private</show>
                </configuration>
            </plugin>

            <!-- 部署至本机 -->
            <plugin>
                <groupId>org.codehaus.cargo</groupId>
                <artifactId>cargo-maven2-plugin</artifactId>
                <version>1.0</version>
                <configuration>
                    <container>
                        <containerId>tomcat6x</containerId>
                        <home>D:WebServerapache-tomcat-6.0.39</home>
                    </container>
                    <configuration>
                        <type>existing</type>
                        <home>D:WebServerapache-tomcat-6.0.39</home>
                    </configuration>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

4、搭建Spring

4.1、 创建配置文件，添加c3p0数据源配置信息

      src/main/resources/applicationConfig.xml

#application all config

#jdbc c3p0
jdbc.driver = com.mysql.jdbc.Driver
jdbc.url = jdbc:mysql://localhost:3306/shop?useUnicode=true&characterEncoding=utf-8
jdbc.username = root
jdbc.password = 12345

4.2、创建Spring配置文件

    src/main/resources/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:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context-4.1.xsd
        ">

    <!--引入配置属性文件 -->
    <context:property-placeholder location="classpath*:/applicationConfig.properties" />
    <!--扫描org.andy.work下文件，自动注入dao,entity,service为bean -->
    <context:component-scan base-package="org.andy.shop.dao.Impl,org.andy.shop.service.Impl" />

    <!-- c3p0数据源配置 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
        destroy-method="close">
        <property name="driverClass" value="${jdbc.driver}" />
        <property name="jdbcUrl" value="${jdbc.url}" />
        <property name="user" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />

        <!-- 请求超时时间 -->
        <property name="checkoutTimeout" value="30000" />
        <!-- 每60秒检查所有连接池中的空闲连接。默认值: 0，不检查 -->
        <property name="idleConnectionTestPeriod" value="30" />
        <!-- 连接数据库连接池最大空闲时间 -->
        <property name="maxIdleTime" value="30" />
        <!-- 连接池初始化连接数 -->
        <property name="initialPoolSize" value="5" />
        <property name="minPoolSize" value="5" />
        <property name="maxPoolSize" value="20" />
        <!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。默认值: 3 -->
        <property name="acquireIncrement" value="5" />
    </bean>

    <!-- spring jdbc -->
    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <bean id="namedParameterJdbcTemplate"
        class="org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate">
        <constructor-arg ref="dataSource" />
    </bean>

    <!-- 配置事务管理 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <!-- 声明式事务，事务拦截器 -->
    <bean id="transactionInterceptor"
        class="org.springframework.transaction.interceptor.TransactionInterceptor">
        <property name="transactionManager" ref="transactionManager" />
        <!-- 配置事务属性 -->
        <property name="transactionAttributes">
            <!--下面定义事务传播属性 -->
            <props>
                <prop key="save*">PROPAGATION_REQUIRED</prop>
                <prop key="del*">PROPAGATION_REQUIRED</prop>
                <prop key="update">PROPAGATION_REQUIRED</prop>

                <prop key="get*">PROPAGATION_SUPPORTS,readOnly</prop>
                <prop key="find*">PROPAGATION_SUPPORTS,readOnly</prop>
                <prop key="*">PROPAGATION_REQUIRED</prop>
            </props>
        </property>
    </bean>

    <!-- Bean后处理器BeanNameAutoProxyCreator，根据List配置创建事务代理 -->
    <bean
        class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
        <!-- 下面是所有需要自动创建事务代理的bean -->
        <property name="beanNames">
            <list>
                <value>*Service</value>
            </list>
        </property>
        <!-- 下面定义BeanNameAutoProxyCreator所需的事务拦截器 -->
        <property name="interceptorNames">
            <list>
                <value>transactionInterceptor</value>
            </list>
        </property>
    </bean>

</beans>

  上面配置的详细功能已写出。

4.3、添加Log4j日志配置

    src/main/resources/log4j.properties

  

### set log levels ###
log4j.rootLogger = INFO , C , D , E

### console ###
log4j.appender.C = org.apache.log4j.ConsoleAppender
log4j.appender.C.Target = System.out
log4j.appender.C.layout = org.apache.log4j.PatternLayout
log4j.appender.C.layout.ConversionPattern = [springmvc_demo][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n

### log file ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ../logs/springmvc-mybatis-demo.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = INFO
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = [springmvc_demo][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n

### exception ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File = ../logs/springmvc-mybatis-demo_error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = [springmvc_demo][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n

5、Entity，Dao，Service实现

创建如下包：

       

5.1、entity创建UserInfo实体

org.andy.shop.entity中添加

package org.andy.shop.entity;

import java.io.Serializable;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Date;

import org.springframework.jdbc.core.RowMapper;

/**
 * 实现数据表与字段的映射
 *
 * @author andy
 *
 */
public class UserInfo implements RowMapper<UserInfo>, Serializable {

    /**
     *
     */
    private static final long serialVersionUID = -8823504831198719837L;

    private Integer id;

    private String uname;

    private Integer unumber;

    private Date uRegisterTime;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUname() {
        return uname;
    }

    public void setUname(String uname) {
        this.uname = uname == null ? null : uname.trim();
    }

    public Integer getUnumber() {
        return unumber;
    }

    public void setUnumber(Integer unumber) {
        this.unumber = unumber;
    }

    public Date getuRegisterTime() {
        return uRegisterTime;
    }

    public void setuRegisterTime(Date uRegisterTime) {
        this.uRegisterTime = uRegisterTime;
    }

    @Override
    public UserInfo mapRow(ResultSet rs, int rowNum) throws SQLException {
        UserInfo userInfo = new UserInfo();
        userInfo.setId(rs.getInt("id"));
        userInfo.setUname(rs.getString("uname"));
        userInfo.setUnumber(rs.getInt("unumber"));
        userInfo.setuRegisterTime(rs.getDate("uregister_time"));
        return userInfo;
    }

}

实现RowMapper接口是为了方便SpringJDBC管理实体与数据库字段的映射。

5.2、实现Dao层

  org.andy.shop.dao添加通用Dao接口

 GenericDao.java:

package org.andy.shop.dao;

import java.io.Serializable;
import java.util.List;

/**
 * 创建时间：2015-1-30 上午10:11:59
 *
 * @author andy
 * @version 2.2
 *
 * Dao通用接口
 */

interface GenericDao<T, PK extends Serializable> {

    T getById(PK id);

    List<T> findAll();

    PK save(T entity);
}

 添加UserInfoDao.java

package org.andy.shop.dao;

import org.andy.shop.entity.UserInfo;

/**
 * 创建时间：2015-1-30 上午11:22:37
 *
 * @author andy
 * @version 2.2
 *
 * UserInfoDao
 */

public interface UserInfoDao extends GenericDao<UserInfo, Integer> {

}

  在org.andy.shop.dao.Impl包中添加UserInfoDao的Dao实现类

  UserInfoDaoImpl.java

package org.andy.shop.dao.Impl;

import java.util.List;

import org.andy.shop.dao.UserInfoDao;
import org.andy.shop.entity.UserInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
import org.springframework.stereotype.Repository;

/**
 * 创建时间：2015-1-30 上午11:25:30
 *
 * @author andy
 * @version 2.2
 *
 * UserInfoDao实现类
 */
@Repository("userInfoDao")
public class UserInfoDaoImpl implements UserInfoDao {

    @Autowired
    private JdbcTemplate jdbcTemplate;

    @Autowired
    private NamedParameterJdbcTemplate namedParameterJdbcTemplate;

    @Override
    public UserInfo getById(Integer id) {

        String sql = "SELECT * FROM user_info WHERE id = ?";

        UserInfo userInfo = jdbcTemplate.queryForObject(sql, new UserInfo(),
                new Object[] { id });

        return userInfo;
    }

    @Override
    public List<UserInfo> findAll() {
        String sql = "SELECT * FROM user_info";
        List<UserInfo> userInfos = jdbcTemplate.query(sql, new UserInfo());
        return userInfos;
    }

    @Override
    public Integer save(UserInfo entity) {

        String sql = "INSERT INTO user_info(uname, unumber, uregister_time) VALUES(:uname, :unumber, :uregister_time)";
        MapSqlParameterSource paramSource = new MapSqlParameterSource();
        paramSource.addValue("uname", entity.getUname());
        paramSource.addValue("unumber", entity.getUnumber());
        paramSource.addValue("uregister_time", entity.getuRegisterTime());
        int result = namedParameterJdbcTemplate.update(sql, paramSource);

        return result;
    }

}

5.3、实现Service层

  org.andy.shop.dao.service添加UserInfoService接口

  UserInfoService.java

package org.andy.shop.service;

import java.util.List;
import org.andy.shop.entity.UserInfo;

/**
 * 创建时间：2015-1-30 上午11:31:34
 *
 * @author andy
 * @version 2.2
 *
 * UserInfoService 接口
 */

public interface UserInfoService {

    // 通过Id查询UserInfo
    UserInfo getById(Integer id);

    // 查询全部的UserInfo
    List<UserInfo> findAll();

    // 添加UserInfo
    Integer save(UserInfo userInfo);

}

   实现UserInfoService接口

package org.andy.shop.service.Impl;

import java.util.List;

import org.andy.shop.dao.UserInfoDao;
import org.andy.shop.entity.UserInfo;
import org.andy.shop.service.UserInfoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * 创建时间：2015-1-30 上午11:40:19
 *
 * @author andy
 * @version 2.2 实现接口
 */

@Service("userInfoService")
public class UserInfoServiceImpl implements UserInfoService {

    @Autowired
    private UserInfoDao userInfoDao;

    @Override
    public UserInfo getById(Integer id) {
        return userInfoDao.getById(id);
    }

    @Override
    public List<UserInfo> findAll() {
        return userInfoDao.findAll();
    }

    @Override
    public Integer save(UserInfo userInfo) {
        return userInfoDao.save(userInfo);
    }

}

6、测试Spring搭建

     单元测试Service中的方法，如果全部成功，Spring和数据连接池搭建完成。

   

package org.andy.shop.test.service;

import java.util.Date;
import java.util.List;

import org.andy.shop.entity.UserInfo;
import org.andy.shop.service.UserInfoService;
import org.apache.log4j.Logger;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.alibaba.fastjson.JSON;

/**
 * 创建时间：2015-1-30 下午12:01:47
 *
 * @author andy
 * @version 2.2
 */
// 引入Spring环境测试
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:applicationContext.xml" })
public class TestUserInfoService {

    private static final Logger LOGGER = Logger
            .getLogger(TestUserInfoService.class);
    @Autowired
    private UserInfoService userInfoService;

    @Test
    public void testGetById() {
        //测试查询对应的用户
        UserInfo userInfo = userInfoService.getById(1);
        LOGGER.info(JSON.toJSONStringWithDateFormat(userInfo,
                "yyyy-MM-dd HH:mm:ss"));
    }

    @Test
    public void testFindAll() {
        //测试查询全部用户
        List<UserInfo> userInfos = userInfoService.findAll();
        for (UserInfo userInfo : userInfos) {
            LOGGER.info(JSON.toJSONStringWithDateFormat(userInfo,
                    "yyyy-MM-dd HH:mm:ss"));
        }
    }

    @Test
    public void testSave() {
        //测试保存用户数据
        UserInfo userInfo = new UserInfo();
        userInfo.setUname("xiaohonghong");
        userInfo.setUnumber(5);
        userInfo.setuRegisterTime(new Date());
        int result = userInfoService.save(userInfo);
        LOGGER.info("result = " + result);
    }
}

7、搭建SpringMVC

    src/main/resources/springMVC.xml

   

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:mvc="http://www.springframework.org/schema/mvc" 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"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.1.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">

    <!-- 自动扫描controller包下的所有类，如果@Controller注入为bean -->
    <context:component-scan base-package="org.andy.shop.controller" />
    <!-- 以下为SpringMVC配置 -->
    <mvc:annotation-driven>
        <!-- 返回json数据，@response使用 -->
        <mvc:message-converters register-defaults="true">
            <bean
                class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
                <property name="supportedMediaTypes">
                    <list>
                        <value>text/html;charset=UTF-8</value>
                        <value>application/json;charset=UTF-8</value>
                    </list>
                </property>

            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>

    <!-- 对模型视图名称的解析，即在模型视图名称添加前后缀 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/views" />
        <property name="suffix" value=".jsp" />
    </bean>

    <!-- 配置多文件上传 -->
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding">
            <value>UTF-8</value>
        </property>
        <property name="maxUploadSize">
            <!-- 上传文件大小限制为 -->
            <value>32505856</value>
        </property>
        <property name="maxInMemorySize">
            <value>4096</value>
        </property>
    </bean>

</beans>

8、控制层Controller

  添加UserInfoController控制层

package org.andy.shop.controller;

import java.util.List;

import org.andy.shop.entity.UserInfo;
import org.andy.shop.service.UserInfoService;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

/**
 * 创建时间：2015-2-1 下午9:40:03
 *
 * @author andy
 * @version 2.2
 *
 * userInfo的控制层
 */
@Controller
@RequestMapping("/user")
public class UserInfoController {

    private static final Logger LOGGER = Logger
            .getLogger(UserInfoController.class);
    @Autowired
    private UserInfoService userInfoService;

    @RequestMapping("/showInfo/{userId}")
    public String showUserInfo(ModelMap modelMap, @PathVariable int userId) {
        LOGGER.info("查看用户：" + userId);
        UserInfo userInfo = userInfoService.getById(1);
        modelMap.addAttribute("userInfo", userInfo);
        return "/user/showInfo";
    }

    @RequestMapping("/showInfos")
    public @ResponseBody List<UserInfo> showUserInfos() {
        LOGGER.info("json返回全部用户的信息");
        List<UserInfo> userInfos = userInfoService.findAll();
        return userInfos;
    }
}

9、视图层

  在webapp/WEB-INF/views/user中创建showInfo.jsp文件。

<%@ page language="java" contentType="text/html; charset=UTF-8" 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 + "/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<base href="<%=basePath%>" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="js/jquery-1.9.1.min.js"></script>
<title>userInfo</title>
</head>
<body>
    姓名： ${userInfo.uname}
    <br/>
    ajax显示全部用户信息：
    <div id="show_all_user"></div>
</body>
<script type="text/javascript">
    $.ajax({
        type : "get",
        url : "user/showInfos.htmls",
        dataType : "json",
        success : function(data) {
            $(data).each(
                    function(i, user) {
                        var p = "<p>username:" + user.uname + "    unumber:"
                                + user.unumber + "    uregister:"
                                + user.uRegisterTime + "</p>";
                        $("#show_all_user").append(p);
                    });
        },
        async : true
    });
</script>
</html>

10、配置web.xml容器

<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    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>springmvc_demo</display-name>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:/applicationContext.xml</param-value>
    </context-param>

    <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>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- 监听servletContext，启动contextConfigLocation中的spring配置信息 -->
      <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- 防止spring内存溢出监听器 -->
    <listener>
        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
    </listener>

    <servlet>
        <description>spring mvc servlet</description>
        <servlet-name>rest</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <!-- 此处配置的是SpringMVC的配置文件 -->
            <param-value>classpath*:/springMVC.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>rest</servlet-name>
        <url-pattern>*.htmls</url-pattern>
    </servlet-mapping>

    <!-- 配置session超时时间，单位分钟 -->
    <session-config>
        <session-timeout>30</session-timeout>
    </session-config>

    <welcome-file-list>
        <welcome-file>/index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

11、测试项目

   maven编译打包部署到tomcat，测试：http://localhost:8080/springmvc_demo/user/showInfo/1.htmls分别测试添加的两个请求地址。

至此，SpringMVC搭建完毕。