SSM框架整合

1.配置Spring

　　applicationContext.xml中:

            <?xml version="1.0" encoding="UTF-8"?>
            <beans xmlns="http://www.springframework.org/schema/beans"
                   xmlns:context="http://www.springframework.org/schema/context"
                   xmlns:util="http://www.springframework.org/schema/util"
                   xmlns:aop="http://www.springframework.org/schema/aop"
                   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-3.2.xsd
                       http://www.springframework.org/schema/context    
                       http://www.springframework.org/schema/context/spring-context-3.2.xsd
                       http://www.springframework.org/schema/util    
                       http://www.springframework.org/schema/util/spring-util-3.2.xsd
                       http://www.springframework.org/schema/aop    
                       http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
                       http://www.springframework.org/schema/tx   
                       http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
                 
                   <!-- 开启包扫描 -->
                   <context:component-scan base-package="cn.tedu.service"/>
                   
                   <!--引入外部配置文件  -->
                   <context:property-placeholder location="classpath:/jdbc.properties"/>
                   
                   <!--配置数据源  -->
                   <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
                           <property name="driverClass" value="${jdbcDriver}"/>
                           <property name="jdbcUrl" value="${jdbcUrl}"/>
                           <property name="user" value="${jdbcUser}"/>
                           <property name="password" value="${jdbcPassword}"/>
                   </bean>
                   
                   <!--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="add*" propagation="REQUIRED"/>
                            <tx:method name="delete*" propagation="REQUIRED"/>
                            <tx:method name="update*" propagation="REQUIRED"/>
                            <tx:method name="find*" propagation="SUPPORTS"/>
                            <tx:method name="*" read-only="true"/>
                        </tx:attributes>
                   </tx:advice>
                   
                   <!--配置事务切面  -->
                   <aop:config>
                           <aop:pointcut expression="execution(* cn.tedu.service..*.*(..))" id="pc"/>
                           <aop:advisor advice-ref="txAdvice" pointcut-ref="pc"/>
                   </aop:config>
<beans>

2.配置SpringMVC

　　配置applicationContext-mvc.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:mvc="http://www.springframework.org/schema/mvc"
                   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-3.2.xsd
                       http://www.springframework.org/schema/context    
                       http://www.springframework.org/schema/context/spring-context-3.2.xsd
                       http://www.springframework.org/schema/mvc   
                       http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
                  <!--开启包扫描  -->
                  <context:component-scan base-package="cn.tedu.controller"/>
                  <!--开启MVC注解  -->
                  <mvc:annotation-driven/>
                  <!--配置视图解析器  -->
                  <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
                          <property name="prefix" value="/WEB-INF/"></property>
                          <property name="suffix" value=".jsp"></property>
                  </bean>
</beans>

　　配置web.xml

            <?xml version="1.0" encoding="UTF-8"?>
            <web-app version="2.5" 
                xmlns="http://java.sun.com/xml/ns/javaee" 
                xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
                xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
                http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
              <display-name></display-name>    
              
              <!--配置前端控制器  -->
              <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:/applicationContext*.xml</param-value>
                  </init-param>
              </servlet>
              
              <servlet-mapping>
                  <servlet-name>springmvc</servlet-name>
                  <url-pattern>*.action</url-pattern>
              </servlet-mapping>
              
              
              <!--中文乱码解决  -->
              <filter>
                  <filter-name>characterEncoding</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>characterEncoding</filter-name>
                  <url-pattern>/*</url-pattern>
              </filter-mapping>
              
              
              <welcome-file-list>
                <welcome-file>index.jsp</welcome-file>
              </welcome-file-list>
</web-app>

3.配置Mybatis

　　配置sqlMapConfig,xml

            <?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>
                <!--添加缓存  引入第三方二级缓存 -->
            
</configuration>

　　配置applicationContext.xml

            <!--整合Mybaits  -->
             <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
                       <!--引入数据源  -->
                       <property name="dataSource" ref="dataSource"></property>
                           
                       <!--引入核心配置文件  -->
                       <property name="configLocation" value="classpath:/sqlMapConfig.xml"/>
                           
                       <!--引入映射文件  -->
                       <property name="mapperLocations" value="classpath:/cn/tedu/pojo/*.xml"/>
   </bean>

　　创建bean,并同时创建bean的映射文件:

            User类：
                public class User {
                    private Integer id;
                    private String name;
                    private Integer age;
                    private String sex;
                    …
                }
            UserMapper.xml
                <?xml version="1.0" encoding="UTF-8" ?>
                <!DOCTYPE mapper
                PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
                <mapper namespace="cn.tedu.mapper.UserMapper">
                
                    
                    <select id="findAll" resultType="cn.tedu.pojo.User">
                        select * from user
                    </select>
                    <select id="findOne" resultType="cn.tedu.pojo.User">
                        select * from user where id = #{id}
                    </select>
                    
                    
</mapper>

　　创建bean的mapper接口:

            package cn.tedu.mapper;
            
            import java.util.List;
            
            import cn.tedu.pojo.User;
            
            public interface UserMapper {
                public List<User> findAll();
                public List<User> findOne(int id);
}

　　为了能让Mybatis扫描识别bean的Mapper类,需要在Spring再注册一个扫描器bean,扫描指定包:

在applicationContext.xml中:

 SSM框架搭建完成