前言

我们在日常的开发中，使用SpringBoot比较多。但是SSM（Spring + SpringMVC + MyBatis）作为原来最流行的业界解决方案框架，使用的还是很多的。目前很多公司中的老项目也大多基于SSM架构来设计的。

本博文主要记录了SSM框架整合的详细步骤，希望对有这方面需求的小伙伴有所帮助。

整合Spring和MyBatis

我们先来整合Spring和MyBatis框架。首先来讲，我们需要创建一个Maven的Web工程，使用的脚手架如下图所示：

创建好之后，我们引入如下依赖坐标：

<?xml version="1.0" encoding="UTF-8"?>

<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.rubinchu</groupId>
    <artifactId>spring-mvc-demo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>spring-mvc-demo Maven Webapp</name>
    <!-- FIXME change it to the project's website -->
    <url>http://www.example.com</url>

    <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>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.5</version>
        </dependency>
        <!--page-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>4.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.github.miemiedev</groupId>
            <artifactId>mybatis-paginator</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>com.github.jsqlparser</groupId>
            <artifactId>jsqlparser</artifactId>
            <version>0.9.4</version>
        </dependency>
        <!--spring相关-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.9</version>
        </dependency>
        <!--mybatis与spring的整合包-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.3</version>
        </dependency>
        <!--数据库驱动jar-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.46</version>
        </dependency>
        <!--druid连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.21</version>
        </dependency>
    </dependencies>

    <build>
        <finalName>spring-mvc-demo</finalName>
        <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
            <plugins>
                <plugin>
                    <artifactId>maven-clean-plugin</artifactId>
                    <version>3.1.0</version>
                </plugin>
                <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
                <plugin>
                    <artifactId>maven-resources-plugin</artifactId>
                    <version>3.0.2</version>
                </plugin>
                <plugin>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.8.0</version>
                </plugin>
                <plugin>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>2.22.1</version>
                </plugin>
                <plugin>
                    <artifactId>maven-war-plugin</artifactId>
                    <version>3.2.2</version>
                </plugin>
                <plugin>
                    <artifactId>maven-install-plugin</artifactId>
                    <version>2.5.2</version>
                </plugin>
                <plugin>
                    <artifactId>maven-deploy-plugin</artifactId>
                    <version>2.8.2</version>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

坐标引入好之后，我们创建关于Dao层的配置文件applicationContext-dao.xml：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       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/context
                            http://www.springframework.org/schema/context/spring-context.xsd">
    <!--包扫描-->
    <context:component-scan base-package="com.rubin.dao"/>

    <!--数据库连接池以及事务管理都交给Spring容器来完成-->
    <!--引⼊外部资源⽂件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!--第三⽅jar中的bean定义在xml中-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <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>

    <!--SqlSessionFactory对象应该放到Spring容器中作为单例对象管理 原来MyBaits中sqlSessionFactory的构建是需要素材的：SqlMapConfig.xml中的内容-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--数据源dataSource-->
        <property name="dataSource" ref="dataSource"/>
        <property name="mapperLocations" value="classpath*:mappers/*Mapper.xml"></property>
        <!-- 分页插件 -->
        <property name="plugins">
            <array>
                <bean class="com.github.pagehelper.PageHelper">
                    <property name="properties">
                        <value>
                            dialect=mysql
                        </value>
                    </property>
                </bean>
            </array>
        </property>
    </bean>

    <!--Mapper动态代理对象交给Spring管理，我们从Spring容器中直接获得Mapper的代理对象-->
    <!--扫描mapper接口，生成代理对象，⽣成的代理对象会存储在Ioc容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--mapper接口包路径配置-->
        <property name="basePackage" value="com.rubin.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

</beans>

创建我们的数据库连接配置文件jdbc.properties和sql脚本文件account.sql：

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/transfer-demo
jdbc.username=root
jdbc.password=123456

create schema `transfer-demo` collate utf8_general_ci;

use `transfer-demo`;

create table account_info
(
    id int auto_increment comment '主键'
        primary key,
    username varchar(255) default '' not null comment '用户名称',
    card_no varchar(255) default '' not null comment '银行卡号',
    money decimal(10,2) default 0.00 not null comment '余额'
)
    comment '账户信息表';

insert into account_info (username, card_no, money) values ('张三', 'NO123456789', 10000.00),  ('李四', 'NO987654321', 10000.00);

创建好之后，创建我们关于Service层的配置文件applicationContext-service.xml：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/context
                            http://www.springframework.org/schema/context/spring-context.xsd
                            http://www.springframework.org/schema/tx
                            http://www.springframework.org/schema/tx/spring-tx.xsd
">
    <!--包扫描-->
    <context:component-scan base-package="com.rubin.service"/>

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

    <!--事务管理注解驱动-->
    <tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

编写我们的Dao层的代码com.rubin.dao.IAccountInfoDao和SQL脚本配置文件mappers/IAccountInfoMapper.xml：

/**
 * dao层接口
 */
public interface IAccountInfoDao {

    /**
     * 通过卡号查询帐户信息
     *
     * @param accountInfo
     * @return
     */
    AccountInfo selectByCardNo(AccountInfo accountInfo);

    /**
     * 更新帐户信息
     *
     * @param accountInfo
     */
    void updateByCardNo(AccountInfo accountInfo);

    /**
     * 查询全部帐户信息
     *
     * @return
     */
    List<AccountInfo> selectAllAccountInfo();

}

<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.rubin.dao.IAccountInfoDao">

    <select id="selectByCardNo" resultType="com.rubin.pojo.AccountInfo" parameterType="com.rubin.pojo.AccountInfo">
        SELECT
            id,
            username,
            card_no AS cardNo,
            money
        FROM
            account_info
        WHERE
            card_no = #{cardNo}
    </select>

    <update id="updateByCardNo" parameterType="com.rubin.pojo.AccountInfo">
        UPDATE account_info SET money = #{money} WHERE card_no = #{cardNo}
    </update>

    <select id="selectAllAccountInfo" resultType="com.rubin.pojo.AccountInfo">
        SELECT
            id,
            username,
            card_no AS cardNo,
            money
        FROM
            account_info
    </select>

</mapper>

接下来创建我们的Service层的接口com.rubin.service.IAccountInfoService和实现类com.rubin.service.impl.AccountInfoServiceImpl：

public interface IAccountInfoService {

    /**
     * 通过卡号查询帐户信息
     *
     * @param accountInfo
     * @return
     */
    AccountInfo selectByCardNo(AccountInfo accountInfo);

    /**
     * 更新帐户信息
     *
     * @param accountInfo
     */
    void updateByCardNo(AccountInfo accountInfo);

    /**
     * 查询全部帐户信息
     *
     * @return
     */
    List<AccountInfo> selectAllAccountInfo();

    /**
     * 分页查询账户信息
     *
     * @param current
     * @param size
     * @return
     */
    PageInfo<AccountInfo> selectPageAccountInfo(int current, int size);

}

@Service
public class AccountInfoServiceImpl implements IAccountInfoService {

    @Autowired
    private IAccountInfoDao iAccountInfoDao;

    /**
     * 通过卡号查询帐户信息
     *
     * @param accountInfo
     * @return
     */
    @Override
    public AccountInfo selectByCardNo(AccountInfo accountInfo) {
        return iAccountInfoDao.selectByCardNo(accountInfo);
    }

    /**
     * 更新帐户信息
     *
     * @param accountInfo
     */
    @Override
    public void updateByCardNo(AccountInfo accountInfo) {
        iAccountInfoDao.updateByCardNo(accountInfo);
    }

    /**
     * 查询全部帐户信息
     *
     * @return
     */
    @Override
    public List<AccountInfo> selectAllAccountInfo() {
        return iAccountInfoDao.selectAllAccountInfo();
    }

    /**
     * 分页查询账户信息
     *
     * @param current
     * @param size
     * @return
     */
    @Override
    public PageInfo<AccountInfo> selectPageAccountInfo(int current, int size) {
        PageHelper.startPage(current, size);
        List<AccountInfo> accountInfos = iAccountInfoDao.selectAllAccountInfo();
        PageInfo<AccountInfo> pageInfo = new PageInfo(accountInfos);
        return pageInfo;
    }

}

这样，我们的Spring和MyBatis就集成好了。写个测试类测试一下com.rubin.service.IAccountInfoServiceTest：

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath*:application*.xml"})
public class IAccountInfoServiceTest {

    @Autowired
    private IAccountInfoService iAccountInfoService;

    @Test
    public void selectAllTest() {
        List<AccountInfo> accountInfos = iAccountInfoService.selectAllAccountInfo();
        System.out.println(Arrays.toString(accountInfos.toArray()));
    }

    @Test
    public void selectPageTest() {
        PageInfo<AccountInfo> pageInfo = iAccountInfoService.selectPageAccountInfo(1, 1);
        System.out.println(Arrays.toString(pageInfo.getList().toArray()));
    }

}

整合SpringMVC

首先，添加好SpringMVC的依赖坐标：

<?xml version="1.0" encoding="UTF-8"?>

<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.rubinchu</groupId>
    <artifactId>spring-mvc-demo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>spring-mvc-demo Maven Webapp</name>
    <!-- FIXME change it to the project's website -->
    <url>http://www.example.com</url>

    <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>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.5</version>
        </dependency>
        <!--page-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>4.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.github.miemiedev</groupId>
            <artifactId>mybatis-paginator</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>com.github.jsqlparser</groupId>
            <artifactId>jsqlparser</artifactId>
            <version>0.9.4</version>
        </dependency>
        <!--spring相关-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.9</version>
        </dependency>
        <!--mybatis与spring的整合包-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.3</version>
        </dependency>
        <!--数据库驱动jar-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.46</version>
        </dependency>
        <!--druid连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.21</version>
        </dependency>
        <!--引入spring webmvc的依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.0</version>
            <scope>provided</scope>
        </dependency>
        <!--⻚⾯使⽤jstl表达式-->
        <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>
        <!--json数据交互所需jar，start-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.9.0</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.0</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.9.0</version>
        </dependency>
        <!--json数据交互所需jar，end-->
    </dependencies>

    <build>
        <finalName>spring-mvc-demo</finalName>
        <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
            <plugins>
                <plugin>
                    <artifactId>maven-clean-plugin</artifactId>
                    <version>3.1.0</version>
                </plugin>
                <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
                <plugin>
                    <artifactId>maven-resources-plugin</artifactId>
                    <version>3.0.2</version>
                </plugin>
                <plugin>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.8.0</version>
                </plugin>
                <plugin>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>2.22.1</version>
                </plugin>
                <plugin>
                    <artifactId>maven-war-plugin</artifactId>
                    <version>3.2.2</version>
                </plugin>
                <plugin>
                    <artifactId>maven-install-plugin</artifactId>
                    <version>2.5.2</version>
                </plugin>
                <plugin>
                    <artifactId>maven-deploy-plugin</artifactId>
                    <version>2.8.2</version>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

添加好之后，创建表现层的配置文件springmvc.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"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        https://www.springframework.org/schema/mvc/spring-mvc.xsd
">

    <!--开启controller扫描-->
    <context:component-scan base-package="com.rubin.controller"/>

    <!--配置springmvc的视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <!--自动注册最合适的处理器映射器，处理器适配器(调用handler方法)-->
    <mvc:annotation-driven/>

    <!--静态资源配置，方案二，SpringMVC框架自己处理静态资源
        mapping:约定的静态资源的url规则
        location：指定的静态资源的存放位置
    -->
    <mvc:resources location="classpath:/"  mapping="/resources/**"/>
    <mvc:resources location="/WEB-INF/js/" mapping="/js/**"/>

</beans>

创建好之后创建测试Controller（com.rubin.controller.TestController）：

@Controller
@RequestMapping("test")
public class TestController {

    @Autowired
    private IAccountInfoService iAccountInfoService;

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

    @RequestMapping("/all")
    @ResponseBody
    public List<AccountInfo> all() {
        return iAccountInfoService.selectAllAccountInfo();
    }

    @RequestMapping("/page")
    @ResponseBody
    public PageInfo<AccountInfo> page(int current, int size) {
        return iAccountInfoService.selectPageAccountInfo(current, size);
    }

}

配置web.xml：

<!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>

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

    <!--spring框架启动-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!--springmvc提供的针对post请求的编码过滤器-->
    <filter>
        <filter-name>encoding</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>encoding</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:springmvc.xml</param-value>
        </init-param>
    </servlet>

    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>

        <!--
          方式一：带后缀，比如*.action  *.do *.aaa
                 该种方式比较精确、方便，在以前和现在企业中都有很大的使用比例
          方式二：/ 不会拦截 .jsp，但是会拦截.html等静态资源（静态资源：除了servlet和jsp之外的js、css、png等）
                为什么配置为/ 会拦截静态资源？？？
                    因为tomcat容器中有一个web.xml（父），你的项目中也有一个web.xml（子），是一个继承关系
                          父web.xml中有一个DefaultServlet,  url-pattern 是一个 /
                          此时我们自己的web.xml中也配置了一个 / ,覆写了父web.xml的配置
                为什么不拦截.jsp呢？
                    因为父web.xml中有一个JspServlet，这个servlet拦截.jsp文件，而我们并没有覆写这个配置，
                    所以springmvc此时不拦截jsp，jsp的处理交给了tomcat
                如何解决/拦截静态资源这件事？
          方式三：/* 拦截所有，包括.jsp
        -->
        <!--拦截匹配规则的url请求，进入springmvc框架处理-->
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

至此，我们的框架就整合完成了。我们可以将其发布到tomcat上面测试一下请求的处理情况。

附录

解决POST请求乱码

POST请求乱码需要在web.xml中加入如下过滤器：

<!-- 解决post乱码问题 -->
<filter>
    <filter-name>encoding</filter-name>
    <filter-class>
org.springframework.web.filter.CharacterEncodingFilter
</filter-class>
    <!-- 设置编码参是UTF8 -->
    <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>encoding</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

解决GET请求乱码问题

GET请求的乱码问题需要修改tomcat的server.xml：

<Connector URIEncoding="utf-8" connectionTimeout="20000" port="8080"
 protocol="HTTP/1.1" redirectPort="8443"/>