springmvc+spring+mybatis整合(听起来高大上,实际就是把配置文件弄一块来了)
1、导入相关jar包
2、编写配置文件
a总、web.xml----配置spring 配置springmvc
<!-- spring 配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- springmvc 配置文件 --> <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:mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping>
b、mvc.xml----springmvc的配置文件---最简单的配置使用注解扫描,如果需要json或其他处理填写相关配置
<?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: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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 注解扫描,自动扫描这个包下面的注解 --> <context:component-scan base-package="cn.sxt.controller"></context:component-scan> </beans>
c、applicationcontext.xml---spring的配置文件
<?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:p="http://www.springframework.org/schema/p" 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"> <!--一、 配置datasource连接池 这种配置肯定是为了读取一个properties文件(下面ab两种方式,b有的时候不行))--> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="${driver}"></property> <property name="url" value="${url}"></property> <property name="username" value="${username}"></property> <property name="password" value="${password}"></property> </bean> <!-- a 这个就是为了读取这个配置文件的--> <bean class="org.springframework.beans.factory.config.PlaceholderConfigurerSupport"> <property name="localion" value="classpath:db.properties"></property> </bean> <!-- b <context:property-placeholder location="db.properties"/>--> <!--二、配置工厂 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSorce" ref="dataSource"></property>
<property name="configLocation" value="classpath:mybatis.cfg.xml"/>//新加的 </bean> <!--三、配置声明式事务 --><!--a 配置事务管理器 --> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <tx:advice id="txAdvice" transaction-manager="txManager"> <tx:attributes> <tx:method name="save" propagation="REQUIRED"/> <tx:method name="get" read-only="true"/> <tx:method name="*" propagation="REQUIRED"/> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut expression="execution(*cn.sxt.service.impl.*.*(..))" id="pointcut"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut"/> </aop:config> <!--四、配置注解扫描 一行搞定自结束 --> <context:component-scan base-package="cn.sxt"/> </beans>
上面截图后来修改在配置工厂属性里面新增了对mybatis的配置,见代码改变部分
d、mybatis---mybatis的配置文件(可有可无,看你怎么整合)
在mybatis3的pdf中拷贝过来的图片,不代表真实配置
真实配置图片及代码
<?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> <typeAliases> <package name="cn.sxt.vo"/> </typeAliases> <mappers> <!-- 添加所有的mapper文件填写位置--> </mappers> </configuration>
3、编码