Springmvc3.1+Spring3.1+hibernate4.2全注解配置

到公司实习一个月了，项目用的SSH2，今天项目做完了，无聊想来研究下Springmvc,折腾了一下午，终于搞定了，并写出了我学生时代最拿手的学生管理系统（就是个喳喳）。先贴我的web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
  <display-name>springBase</display-name>
  <welcome-file-list>
    <welcome-file>login.jsp</welcome-file>
  </welcome-file-list>
  <!-- 加载所有的配置文件 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath*:config/spring-*.xml</param-value>
  </context-param>
  <!-- 配置spring监听器-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 配置SpringMVC -->
  <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*:config/spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>springMVC</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <!-- 配置字符集 -->
  <filter>
    <filter-name>encodingFilter</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>
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <!-- 配置Session -->
  <filter>
    <filter-name>openSession</filter-name>
    <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>openSession</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

注释很多，很简单，这里说一句

classpath*:config/spring-*.xml

这里我在项目根目录下建了一个config文件夹，所有的配置文件都从哪儿加载。

下面是Spring-mvc.xml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:context="http://www.springframework.org/schema/context"  
    xmlns:mvc="http://www.springframework.org/schema/mvc"  
    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-3.2.xsd  
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">  
	
    
    <!-- 注解探测器 -->
    <context:annotation-config />
	<!--注解扫描包  -->
    <context:component-scan base-package="controller"></context:component-scan>
	
	<!-- 开启注解，注解驱动 -->
	<mvc:annotation-driven/>
	
	<!-- 静态资源访问 -->
	<mvc:resources location="/js/" mapping="/js/**"/> 
	
	<!-- 定义试图解析器 -->
	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <!-- 加载jstl-->
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>  
        <property name="prefix" value="/"></property>  
        <property name="suffix" value=".jsp"></property>  
        </bean>
        
        <!-- 上传文件大小限制为50M，50*1024*1024 -->
        <bean id="maxUploadSize" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
        <property name="maxUploadSize" value="52428800" />  
        <property name="maxInMemorySize" value="4096" />  
        </bean> 
        
        <!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 annotation默认的办法映射适配器 -->	 
        <bean id="handlerMapping" class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />	 
        <bean id="handlerAdapter" class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
        <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>
  
        <!-- 避免IE在ajax请求时，返回json出现下载 -->
        <bean id="jacksonMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">	
        <property name="supportedMediaTypes">
        <list>
        <value>text/html;charset=UTF-8</value>
        </list>
        </property>
  </bean>
	
</beans>

这里不用解释，注释很完整

下面是Spring-beans.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   
    http://www.springframework.org/schema/beans/spring-beans.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">

	<!-- 扫描dao文件 -->
	<context:component-scan base-package="dao">
	</context:component-scan>
	<!-- 扫描service文件 -->
	<context:component-scan base-package="manager">
	</context:component-scan>


</beans>

因为Controller在Spring-mvc.xml中已经加载过了，所以这里只加载dao和service文件

最后是数据库配置Spring-common.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:aop="http://www.springframework.org/schema/aop" xmlns:util="http://www.springframework.org/schema/util"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:task="http://www.springframework.org/schema/task"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.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-3.0.xsd
           http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd
           http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
           
         
	<!-- 配置本地数据库连接 -->

	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
		<property name="url" value="jdbc:mysql://localhost:3306/spring"></property>
		<property name="username" value="root"></property>
		<property name="password" value="123qwezrj"></property>
	</bean>

	<!-- 配置本地数据库连接 -->
	<!-- 配置sessionFactory -->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource"></property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
				<prop key="hibernate.hbm2ddl.auto">update</prop>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.format_sql">true</prop>
			</props>
		</property>
		<!-- 注解方式配置 -->
		<property name="packagesToScan">
			<list>
				<!-- 这里只扫描了entity包下面的javabean,而entity.*是扫描entity包下一级包的javabean,切记 -->
				<value>entity</value>
			</list>
		</property>
	</bean>

	<!-- 配置一个事务管理器 -->
	<bean id="transactionManager"
		class="org.springframework.orm.hibernate4.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<!-- 注解方式开启事务 ，在servicesimpl上面使用@Service和@Transactional-->
	<tx:annotation-driven transaction-manager="transactionManager" />

</beans>

注意，在serviceimpl上使用

@Transactional

有几种情况，第一种是写在类上面的，会给类里的每个可见方法增加事务管理，也可以直接卸载方法上面，会覆盖类的事务设置。源码保存在百度云上地址：http://pan.baidu.com/s/1o6OCfWY。sql很简单，我就不贴上去了。可以参考entity，自己建一个spring数据库，再建一个t_user表。好了，这是myeclipse项目