spring3.1 + mybatis 返回null正常,返回结果前台接收不到

xingfudehunpo 2013-01-04 09:57:25

这是我的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"

	id="WebApp_ID" version="3.0">

	<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>



	<!-- 配置spring核心servlet -->

	<servlet>

		<servlet-name>frame</servlet-name>

		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

		<load-on-startup>1</load-on-startup>

	</servlet>

	<servlet-mapping>

		<servlet-name>frame</servlet-name>

		<!-- url配置为*.json，不带文件后缀，会造成其它静态文件(js，css等)不能访问。如配为*.do，则不影响静态文件的访问 -->

		<url-pattern>*.json</url-pattern>

	</servlet-mapping>



	<welcome-file-list>

		<welcome-file>login.jsp</welcome-file>

	</welcome-file-list>

</web-app>

这是我的frame-servlet.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:p="http://www.springframework.org/schema/p"  

    xmlns:mvc="http://www.springframework.org/schema/mvc"  

    xmlns:context="http://www.springframework.org/schema/context"  

    xmlns:util="http://www.springframework.org/schema/util"  

    xmlns:tx="http://www.springframework.org/schema/tx"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd  

            http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd

            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">

    

    <!-- 对包中的所有类进行扫描，以完成Bean创建和自动依赖注入的功能--> 

	<context:component-scan base-package="com" />

	

	<!-- 使用annotation 自动注册事务--> 

	<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>

	

	<!-- 使用annotation 自动注册bean,并保证@Required,@Autowired的属性被注入 -->

	<context:component-scan base-package="*" />

	

	<!-- 该 BeanPostProcessor 将自动对标注 @Autowired 的 Bean 进行注入 -->    

	<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />

	

	<!-- ②：启动Spring MVC的注解功能，完成请求和注解POJO的映射  -->  

	<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />  



  

	<!-- ③：对模型视图名称的解析，即在模型视图名称添加前后缀  -->  

<!-- 	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="" p:suffix=".jsp" p:viewClass = "org.springframework.web.servlet.view.JstlView" />  -->

	

</beans>

applicationContext.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:p="http://www.springframework.org/schema/p"

	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"

	xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"

	xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd

			http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-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/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd

			http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">



	<context:property-placeholder location="classpath:jdbc.properties"/>

	

	<!-- 配置数据源 -->

	<bean id="dataSource_dbcp" class="org.apache.commons.dbcp.BasicDataSource"

		destroy-method="close">

		<property name="driverClassName" value="com.mysql.jdbc.Driver" />

		<property name="url" value="jdbc:mysql://localhost:3306/frame?characterEncoding=GBK" />

		<property name="username" value="root" />

		<property name="password" value="root" />

		<property name="maxActive" value="10"></property>

		<property name="maxIdle" value="0" />

		<property name="maxWait" value="200" />

	</bean>



	<bean id="defaultDataSource"

		class="org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy">

		<constructor-arg>

			<ref bean="dataSource_dbcp" />

		</constructor-arg>

	</bean>



	<!-- 配置SqlSessionFactoryBean -->

	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

		<property name="dataSource" ref="defaultDataSource" /		<property name="mapperLocations" value="classpath:com/mapper/*/*.mapper.xml"/>

	</bean>

	<!-- 启用dao的注解方式 -->

	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

		<property name="annotationClass"   value="org.springframework.stereotype.Repository" />

		<property name="basePackage"       value="com.*" />

		<property name="sqlSessionFactory" ref="sqlSessionFactory" />

	</bean>

	<!--声明事务管理 -->

	<bean id="transactionManager"

		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

		<property name="dataSource" ref="defaultDataSource"></property>

	</bean>

</beans>

Controller中的方法



/**

	 * 查询用户信息

	 * @param request

	 * @param response

	 * @return

	 */

	@RequestMapping(baseUrl + "userList" + suffix)

	@ResponseBody

	public List<User> userList(HttpServletRequest request, HttpServletResponse response) {

	    List<User> list = new ArrayList<User>();

	    

	    try

	    {

			// 获取用户信息

			list = sysUserServiceImpl.qryList(request);

		} 

	    catch (Exception e)

	    {

			log.info("用户信息查询失败。原因：" + e.getMessage());

			e.printStackTrace();

		}

	    

		return list;

	}

ajax请求



function selUser(){

	var uname = $("#uname").val();

	var cdate = $("#cdate").datetimebox('getValue');

	var u_status = $("#u_status").combobox('getValue');

	

	$.ajax({

		type: "POST",

		url : "userList.json",

		data:{uname:uname,cdate:cdate,u_status:u_status},

		//dataType:"json",

		cache:false,

		success:function(data){

			alert("ddddddddddd");

		}

	});

}