SSM框架整合

SSM框架整合

springmvc+spring+mybatis整合

1. 整合思路

1. 先搭建整合的环境2. 先把Spring的配置搭建完成3. 再使用Spring整合SpringMVC框架4. 最后使用Spring整合MyBatis框架

2. 搭建整合环境

1. 创建工程，导入SSM整合所需要的所有依赖jar包

<properties>    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>    <maven.compiler.source>1.8</maven.compiler.source>    <maven.compiler.target>1.8</maven.compiler.target>    <spring.version>5.0.2.RELEASE</spring.version>    <slf4j.version>1.6.6</slf4j.version>    <log4j.version>1.2.12</log4j.version>    <mysql.version>5.1.6</mysql.version>    <mybatis.version>3.4.5</mybatis.version>  </properties><dependencies>    <!-- spring -->    <dependency>      <!-- spring中的el表达式的解析依赖 -->      <groupId>org.aspectj</groupId>      <artifactId>aspectjweaver</artifactId>      <version>1.6.8</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-aop</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-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-test</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-jdbc</artifactId>      <version>${spring.version}</version>    </dependency>    <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>      <version>4.12</version>    <scope>compile</scope>    </dependency>    <dependency>      <groupId>mysql</groupId>      <artifactId>mysql-connector-java</artifactId>      <version>${mysql.version}</version>    </dependency>    <dependency>      <groupId>javax.servlet</groupId>      <artifactId>servlet-api</artifactId>      <version>2.5</version>      <scope>provided</scope>    </dependency>    <dependency>      <groupId>javax.servlet.jsp</groupId>      <artifactId>jsp-api</artifactId>      <version>2.0</version>      <scope>provided</scope>    </dependency>    <!-- jsp中的el表达式需要的解析依赖 -->    <dependency>      <groupId>jstl</groupId>      <artifactId>jstl</artifactId>      <version>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>${slf4j.version}</version>    </dependency>    <!-- log end -->    <dependency>      <groupId>org.mybatis</groupId>      <artifactId>mybatis</artifactId>      <version>${mybatis.version}</version>    </dependency>    <dependency>      <groupId>org.mybatis</groupId>      <artifactId>mybatis-spring</artifactId>      <version>1.3.0</version>    </dependency>    <dependency>      <groupId>c3p0</groupId>      <artifactId>c3p0</artifactId>      <version>0.9.1.2</version>      <type>jar</type>      <scope>compile</scope>    </dependency>  </dependencies>

2. 完善maven工程的目录，java+resources包
3. 创建domain实体类

package com.itlearn.domain;import java.io.Serializable;public class Account implements Serializable {    private Integer ID;    private Integer UID;    private  Double MONEY;  ...}

4. 编写Dao接口：（dao不需要实现类，只写接口，在接口上配置注解）

package com.itlearn.dao;import com.itlearn.domain.Account;import org.apache.ibatis.annotations.Insert;import org.apache.ibatis.annotations.Select;import org.springframework.stereotype.Repository;import java.util.List;@Repository("accountDao")public interface IAccountDao {    public List<Account> findAll();    public void saveAccount(Account account);}

5. 编写service接口和实现类

package com.itlearn.service;import com.itlearn.domain.Account;import java.util.List;public interface IAccountService {    //查询所有账户    public List<Account> findAll();    //保存账户    public void saveAccount(Account account);}

package com.itlearn.service.impl;import com.itlearn.dao.IAccountDao;import com.itlearn.domain.Account;import com.itlearn.service.IAccountService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import java.util.List;@Service("accountService")public class IAccountServiceImpl implements IAccountService {    /**     * 业务层查询所有账户     * @return     */    @Override    public List<Account> findAll() {        List<Account> accounts = dao.findAll();        return accounts;    }    /**     * 业务层保存账户     * @param account     */    @Override    public void saveAccount(Account account) {        dao.saveAccount(account);    }}

3. 搭建Spring框架的环境

1. 在ssm整合项目中创建applicationContext.xml的配置文件，编写具体的配置信息

<?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">    <!-- 开启注解的扫描:只扫描处理service层和dao层的注解，而不负责web层的，因为web层的注解要交给springmvc负责 -->    <context:component-scan base-package="com.itlearn">        <!-- 配置Controller注解不扫描 -->        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:exclude-filter>    </context:component-scan></beans>

2. 在test包中 创建service层的测试方法，验证spring是否搭建成功

package com.itlearn.test;import com.itlearn.service.IAccountService;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class SpringTest {    @Test    public void testService(){        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");        //获取对象        IAccountService service = context.getBean("accountService",IAccountService.class);        //调用方法        service.findAll();    }}//测试结果：spring环境搭建成功

4. 搭建并测试springmvc框架的环境

1. 在web.xml中配置DispatcherServlet前端控制器

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" ><web-app>  <display-name>Archetype Created Web Application</display-name>  <!-- 配置前端控制器 -->  <servlet>    <servlet-name>dispatcherServlet</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <!-- 配置加载springmvc.xml配置文件 -->    <init-param>      <param-name>contextConfigLocation</param-name>      <param-value>classpath:springmvc.xml</param-value>    </init-param>    <!-- 配置启动服务器就创建该ispatcherServlet -->    <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>    <servlet-name>dispatcherServlet</servlet-name>    <url-pattern>/</url-pattern>  </servlet-mapping>  <!-- 配置解决中文乱码的过滤器 -->  <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></web-app>

2. 创建springmvc.xml的配置文件，编写配置文件

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:mvc="http://www.springframework.org/schema/mvc"       xmlns:context="http://www.springframework.org/schema/context"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xsi:schemaLocation=" http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans.xsd       http://www.springframework.org/schema/mvc       http://www.springframework.org/schema/mvc/spring-mvc.xsd       http://www.springframework.org/schema/context       http://www.springframework.org/schema/context/spring-context.xsd">    <!-- 配置开启注解扫描，只扫描Controller注解 -->    <context:component-scan base-package="com.itlearn">        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:include-filter>    </context:component-scan>    <!-- 配置视图解析器 -->    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix" value="/WEB-INF/pages/"></property>        <property name="suffix" value=".jsp"></property>    </bean>    <!-- 设置静态资源不过滤 -->    <mvc:resources location="/css/" mapping="/css/**" />    <mvc:resources location="/images/" mapping="/images/**" />    <mvc:resources location="/js/" mapping="/js/**" />    <!-- 配置开启springmvc注解的支持 -->    <mvc:annotation-driven/></beans>

3. 创建Controller包以及controller类：AccountController.java

package com.itlearn.controller;import com.itlearn.domain.Account;import com.itlearn.service.IAccountService;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 javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.util.List;/** * web层控制器 */@Controller("accountController")@RequestMapping("/account")public class AccountController {    @Autowired    private IAccountService service;    @RequestMapping("/findAll")    public String findAll(){       System.out.println("表现层：查询所有账户...");        return "success";    }}

4. 在index.jsp页面中编写超链接，访问controller方法

<a href="/account/findAll">FindAll_Controller</a>

5. 测试结果：环境搭建成功

5. Spring整合SpringMVC框架

1. 目的：在controller中能成功的调用service对象中的方法

2. 在项目启动的时候，就去加载applicationContext.xml的配置文件，在web.xml中配置ContextLoaderListener 监听器（该监听器只能加载WEB-INF目录下的applicationContext.xml的配置文件,所以需要手动 在web.xml中配置applicationContext.xml的位置，作为监听器的参数）

3.  <!-- 配置spring的监听器:该监听器只能加载WEB-INF目录下的applicationContext.xml的配置文件 --> <listener>   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置加载类路径的配置文件 --> <context-param>   <param-name>contextConfigLocation</param-name>   <param-value>classpath:applicationContext.xml</param-value> </context-param>

4. 在controller中注入service对象，调用service对象的方法进行测试

package com.itlearn.controller;import com.itlearn.domain.Account;import com.itlearn.service.IAccountService;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 javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.util.List;/** * web层控制器 */@Controller("accountController")@RequestMapping("/account")public class AccountController {    //注入service    @Autowired    private IAccountService service;    @RequestMapping("/findAll")    public String findAll(Model model){       System.out.println("表现层：查询所有账户...");        return "success";    }}

6. 搭建Mybatis环境并测试是否搭建完成

1. 在web项目中编写SqlMapConfifig.xml的配置文件，编写核心配置文件

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE configuration        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"        "http://mybatis.org/dtd/mybatis-3-config.dtd"><configuration>    <properties resource="jdbcConfig.properties"></properties>    <!-- 开启允许延迟加载        在开启之后，所有的sql语句，只要满足延迟加载的，都会进行延迟加载         如果：在一对一，多对一的情况下，想要不使用延迟加载，就要通过：fetchtype属性进行配置立即加载        fetchtype = "eager":立即加载    -->    <settings>        <setting name="lazyLoadingEnabled" value="true"/>        <setting name="aggressiveLazyLoading" value="false"/>    </settings>    <!-- 为domain下实体类配置别名；不区分大小写 -->    <typeAliases>        <package name="com.itlearn.domain"></package>    </typeAliases>    <!-- 配置环境 -->    <environments default="mysql">        <!-- 配置mysql的环境 -->        <environment id="mysql">            <!-- 配置事务的类型 -->            <transactionManager type="JDBC"></transactionManager>            <!-- 配置数据源（连接池） -->            <dataSource type="POOLED">                <!-- 配置连接事务的四个基本信息 -->                <property name="driver" value="${jdbc.driver}" />                <property name="url" value="${jdbc.url}" />                <property name="username" value="${jdbc.username}" />                <property name="password" value="${jdbc.password}" />            </dataSource>        </environment>    </environments>    <mappers>        <package name="com.itlearn.dao"></package    </mappers></configuration>

2. 引入jdbcConfig.properties配置文件

jdbc.driver=com.mysql.jdbc.Driverjdbc.url=jdbc:mysql://localhost:3306/mybatisdbjdbc.username=rootjdbc.password=root

3. 在IAccountDao接口的方法上添加注解，编写SQL语句

package com.itlearn.dao;import com.itlearn.domain.Account;import org.apache.ibatis.annotations.Insert;import org.apache.ibatis.annotations.Select;import org.springframework.stereotype.Repository;import java.util.List;@Repository("accountDao")public interface IAccountDao {    //查询所有账户    @Select("select * from account")    public List<Account> findAll();    //保存账户    @Insert("insert into account values(#{ID},#{UID},#{MONEY})")    public void saveAccount(Account account);}

4. 编写测试的方法

public class Demo1 {     @Test     public void run1() throws Exception {         // 加载配置文件         InputStream inputStream = Resources.getResourceAsStream("SqlMapConfig.xml");         // 创建工厂         SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(inputStream);         // 创建sqlSession对象         SqlSession session = factory.openSession();         // 获取代理对象         AccountDao dao = session.getMapper(AccountDao.class);         // 调用查询的方法         List<Account> list = dao.findAll();         for (Account account : list) {             System.out.println(account);         }        // 释放资源         session.close();         inputStream.close();     }

7. Spring整合Mybatis框架

1. 目的：把SqlMapConfifig.xml配置文件中的内容配置到applicationContext.xml配置文件中

<?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">    <!-- 开启注解的扫描:只扫描处理service层和dao层的注解，而不负责web层的，因为web层的注解要交给springmvc负责 -->    <context:component-scan base-package="com.itlearn">        <!-- 配置Controller注解不扫描 -->        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:exclude-filter>    </context:component-scan>    <!-- 将Mybatis配置文件SqlMapConfig.xml配置文件整合到此 -->    <!-- 引入properties文件 -->    <context:property-placeholder location="classpath:jdbcConfig.properties"/>    <!-- 配置C3P0的连接池对象 -->    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">        <!-- 配置连接事务的四个基本信息 -->        <property name="driverClassName" value="${jdbc.driver}" />        <property name="url" value="${jdbc.url}" />        <property name="username" value="${jdbc.username}" />        <property name="password" value="${jdbc.password}" />    </bean>    <!-- 配置SqlSession的工厂 -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource" />    </bean>    <!-- 配置扫描dao的包 -->    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="basePackage" value="com.itlearn.dao"/>    </bean></beans>

2. 在service中注入dao对象，进行测试 （在此SqlMapConfig.xml可以删除了）

package com.itlearn.service.impl;import com.itlearn.dao.IAccountDao;import com.itlearn.domain.Account;import com.itlearn.service.IAccountService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import java.util.List;@Service("accountService")public class IAccountServiceImpl implements IAccountService {    //注入：dao对象    @Autowired    private IAccountDao dao;    /**     * 业务层查询所有账户     * @return     */    @Override    public List<Account> findAll() {        List<Account> accounts = dao.findAll();        return accounts;    }    /**     * 业务层保存账户     * @param account     */    @Override    public void saveAccount(Account account) {        dao.saveAccount(account);    }}

3. 编写测试方法：Controller调用service，service调用dao实现查询所有操作

package com.itlearn.controller;import com.itlearn.domain.Account;import com.itlearn.service.IAccountService;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 javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.util.List;/** * web层控制器 */@Controller("accountController")@RequestMapping("/account")public class AccountController {    @Autowired    private IAccountService service;    @RequestMapping("/findAll")    public String findAll(Model model){        List<Account> accounts = service.findAll();        model.addAttribute("accounts",accounts);        return "list";    }}

index.jsp页面

<a href="/account/findAll">FindAll_Controller</a>

list.jsp页面

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><html><head>    <title>Title</title></head><body>    <c:forEach items="${accounts}" var="account">        ${account.MONEY}    </c:forEach></body>

结论：可以实现查询所有操作

4. 在applicationContext.xml中配置Spring的声明式事务管理，以实现保存账户操作（即：实现增删改操作，因为这三个都有事务）

    <!-- 配置spring声明式事务管理 -->    <!-- 配置事务管理器 -->    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource"></property>    </bean>    <!-- 配置事务通知 -->    <tx:advice id="txAdvice" transaction-manager="transactionManager">        <tx:attributes>            <tx:method name="find*" read-only="true"/>            <tx:method name="*" isolation="DEFAULT"/>        </tx:attributes>    </tx:advice>    <!-- 配置AOP增强 -->    <aop:config>        <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.itlearn.service.impl.*ServiceImpl.*(..))"/>    </aop:config>

5. 测试保存操作

    @RequestMapping("/save")    public void saveAccount(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException {        service.saveAccount(account);        response.sendRedirect(request.getContextPath()+"/account/findAll");        return;    }

index.jsp页面

<form action="/account/save" method="post">    ID:<input type="text" name="ID">    UID:<input type="text" name="UID">    MONEY:<input type="text" name="MONEY">    <input type="submit" value="添加"></form>

8. 整合完成。完整代码展示

1. applicationContext.xml完整配置

<?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">    <!-- 开启注解的扫描:只扫描处理service层和dao层的注解，而不负责web层的，因为web层的注解要交给springmvc负责 -->    <context:component-scan base-package="com.itlearn">        <!-- 配置Controller注解不扫描 -->        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:exclude-filter>    </context:component-scan>    <!-- 引入properties文件 -->    <context:property-placeholder location="classpath:jdbcConfig.properties"/>    <!-- 配置C3P0的连接池对象 -->    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">        <!-- 配置连接事务的四个基本信息 -->        <property name="driverClassName" value="${jdbc.driver}" />        <property name="url" value="${jdbc.url}" />        <property name="username" value="${jdbc.username}" />        <property name="password" value="${jdbc.password}" />    </bean>    <!-- 配置SqlSession的工厂 -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource" />    </bean>    <!-- 配置扫描dao的包 -->    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="basePackage" value="com.itlearn.dao"/>    </bean>    <!-- 配置spring声明式事务管理 -->    <!-- 配置事务管理器 -->    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource"></property>    </bean>    <!-- 配置事务通知 -->    <tx:advice id="txAdvice" transaction-manager="transactionManager">        <tx:attributes>            <tx:method name="find*" read-only="true"/>            <tx:method name="*" isolation="DEFAULT"/>        </tx:attributes>    </tx:advice>    <!-- 配置AOP增强 -->    <aop:config>        <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.itlearn.service.impl.*ServiceImpl.*(..))"/>    </aop:config></beans>

2. springmvc.xml完整配置

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:mvc="http://www.springframework.org/schema/mvc"       xmlns:context="http://www.springframework.org/schema/context"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xsi:schemaLocation=" http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans.xsd       http://www.springframework.org/schema/mvc       http://www.springframework.org/schema/mvc/spring-mvc.xsd       http://www.springframework.org/schema/context       http://www.springframework.org/schema/context/spring-context.xsd">    <!-- 配置开启注解扫描，只扫描Controller注解 -->    <context:component-scan base-package="com.itlearn">        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:include-filter>    </context:component-scan>    <!-- 配置视图解析器 -->    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix" value="/WEB-INF/pages/"></property>        <property name="suffix" value=".jsp"></property>    </bean>    <!-- 设置静态资源不过滤 -->    <mvc:resources location="/css/" mapping="/css/**" />    <mvc:resources location="/images/" mapping="/images/**" />    <mvc:resources location="/js/" mapping="/js/**" />    <!-- 配置开启springmvc注解的支持 -->    <mvc:annotation-driven/></beans>

3. web.xml完整配置

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" ><web-app>  <display-name>Archetype Created Web Application</display-name>  <!-- 配置前端控制器 -->  <servlet>    <servlet-name>dispatcherServlet</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <!-- 配置加载springmvc.xml配置文件 -->    <init-param>      <param-name>contextConfigLocation</param-name>      <param-value>classpath:springmvc.xml</param-value>    </init-param>    <!-- 配置启动服务器就创建该ispatcherServlet -->    <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>    <servlet-name>dispatcherServlet</servlet-name>    <url-pattern>/</url-pattern>  </servlet-mapping>  <!-- 配置解决中文乱码的过滤器 -->  <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>  <!-- 配置spring的监听器:该监听器只能加载WEB-INF目录下的applicationContext.xml的配置文件 -->  <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <!-- 配置加载类路径的配置文件 -->  <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:applicationContext.xml</param-value>  </context-param></web-app>