SSM框架搭建

先将Spring和Mybatis整合

1.加入 mybatis 的 jar 包和配置文件: 实际上需要配置的就是 settings 的部分。

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<?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>       <!-- settings标签可以设置多个属性值 -->       <settings>             <!-- setting标签负责每一个属性的设置 -->             <setting name="mapUnderscoreToCamelCase" value="true"/>       </settings> </configuration>

 

2. 加入 Spring 的 jar 包和配置文件(官网：www.fhadmin.org)

 

之前是在 mybatis-config.xml 获取 sqlSessionFactory 和扫描 mapper 接口

但是现在 mybatis-config.xml 只有 settings 

所以在 bean.xml 中配置获得 sqlSessionFactory 和扫描 mapper 接口

Spring具体配置参见上篇《Spring+SpringMVC的整合》

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<context:component-scan base-package="com.neuedu">       <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>       <context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/> </context:component-scan>   <!-- 加载外部属性文件 --> <context:property-placeholder location="classpath:jdbc.properties"/> <!-- 配置C3P0 数据源 --> <bean id="comboPooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">       <property name="user" value="${jdbc.username}"></property>       <property name="password" value="${jdbc.password}"></property>       <property name="driverClass" value="${jdbc.driver}"></property>       <property name="jdbcUrl" value="${jdbc.url}"></property> </bean>   <!-- 配置事务管理器 --> <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">       <property name="dataSource" ref="comboPooledDataSource"></property> </bean> <!-- 开启基于注解的事务 --> <tx:annotation-driven transaction-manager="dataSourceTransactionManager"/>   <!-- 配置sqlSessionFactory --> <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">       <property name="dataSource" ref="comboPooledDataSource"></property>       <property name="configLocation" value="classpath:mybatis-config.xml"></property> </bean>   <!-- 批量扫描mapper接口包 --> <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">       <property name="basePackage" value="com.neuedu.sm.mapper"></property> </bean>

 

3.Test 测试

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public class TestEmployeeMapper {       private ApplicationContext ioc = new ClassPathXmlApplicationContext("bean.xml");       @Test       public void test() {             EmployeeMapper bean = ioc.getBean(EmployeeMapper.class);             Employee employee = bean.getEmpById(1);             System.out.println(employee);       } }

 

以上Spring+Mybatis的配置基本完毕

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将 SpringMVC整合到上面的项目中(官网：www.fhadmin.org)

 

1.配置SpringMVC 配置文件

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<context:component-scan base-package="com.neuedu" use-default-filters="false">     <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>     <context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/> </context:component-scan>   <!-- 配置视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">     <property name="prefix" value="/WEB-INF/views/"></property>     <property name="suffix" value=".jsp"></property> </bean>   <!-- 处理静态资源 --> <mvc:default-servlet-handler/> <mvc:annotation-driven/>

 

2.创建相应的Controller、Service

 

 3.在Controller层获取页面传来的数据，调用Service层方法【SpringMVC】

　Service层调用Mapper接口，【Mybatis】

　Mapper接口中有相应的方法，与sql映射文件相对应【Mybatis】