一直很少弄事务管理,今天花了一天的时间,弄了下事务管理,发现其中遇到很多问题,就是事务不起作用。后面终于知道原因了。
在mvc的配置文件中,如果扫描时,不去除service的扫描,那么在容器进行扫描时,直接注入service类,此时事务不能再加入到service类上。具体配置如下:
<!-- 自动扫描组件,这里要把controler下面的 controller去除,他们是在spring3-servlet.xml中配置的,如果不去除会影响事务管理的。 -->
<context:component-scan base-package="com.zhuzhu.controller" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service" />
</context:component-scan>
具体的框架事务配置:
1、目录结构
2、具体配置:
①applicationContext-DB.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" 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/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"
>
<!--此处扫描除controller以外的类,如@service,@component -->
<context:component-scan base-package="com.zhuzhu">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" />
<!--数据库连接url -->
<property name="jdbcUrl" value="xxxxxxx" />
<property name="user" value="xxx" />
<property name="password" value="xxx" />
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="" />
<property name="dataSource" ref="dataSource"/>
</bean>
<bean id="transactioManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<tx:annotation-driven transaction-manager="transactioManager"/>
<!-- DAO接口所在包名,Spring会自动查找其下的类 -->
<bean name="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.zhuzhu.dao" />
<property name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>
</beans>
②spring-mvc.xml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:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
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-4.0.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-3.0.xsd">
<!-- MVC注解驱动 -->
<mvc:annotation-driven>
</mvc:annotation-driven>
<!-- 自动扫描组件,这里要把controler下面的 controller去除,他们是在spring3-servlet.xml中配置的,如果不去除会影响事务管理的。 -->
<context:component-scan base-package="com.zhuzhu.controller" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<mvc:default-servlet-handler/>
<!-- 定义视图解释器 -->
<!-- <bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
-->
</beans>
③ web.xml配置:
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>demo0103</display-name>
<!-- spring -->
<!-- web.xml 的加载顺序是:ServletContext -> context-param -> listener -> filter -> servlet
1)load-on-startup元素标记容器是否在启动的时候就加载这个servlet(实例化并调用其init()方法)。
2)它的值必须是一个整数,表示servlet应该被载入的顺序
2)当值为0或者大于0时,表示容器在应用启动时就加载并初始化这个servlet;
3)当值小于0或者没有指定时,则表示容器在该servlet被选择时才会去加载。
4)正数的值越小,该servlet的优先级越高,应用启动时就越先加载。
5)当值相同时,容器就会自己选择顺序来加载。
所以,<load-on-startup>x</load-on-startup>,中x的取值1,2,3,4,5代表的是优先级,而非启动延迟时间。
-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:spring/applicationContext-DB.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- springmvc -->
<servlet>
<servlet-name>springDispatcher</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- map all requests for /* to the dispatcher servlet -->
<servlet-mapping>
<servlet-name>springDispatcher</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index1.jsp</welcome-file>
</welcome-file-list>
</web-app>
详情请查看代码:
代码下载地址
本文介绍了在Spring框架中正确配置事务管理的方法,特别是如何避免在组件扫描时将@Service类误注入而导致事务失效的问题。
2560

被折叠的 条评论
为什么被折叠?



