求解 在线等 struts+spring+mybatis sqlsession为空 debug发现没有执行set方法 检查配置好像没问题
<?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:aop="http://www.springframework.org/schema/aop"      
      xmlns:tx="http://www.springframework.org/schema/tx"       
      xmlns:jdbc="http://www.springframework.org/schema/jdbc"       
      xmlns:context="http://www.springframework.org/schema/context"      
      xsi:schemaLocation="       
      http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-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/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-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/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"      
     default-autowire="byName">
  <!--  <context:annotation-config /> -->
<!-- 导入属性配置文件 -->
<context:property-placeholder location="classpath:config/mysql.properties" />

   <!--  <context:component-scan base-package="com.niit" /> -->
    
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName"
value="com.mysql.jdbc.Driver" />
<property name="url" value="${datasource.url}" />
<property name="username" value="${datasource.username}" />
<property name="password" value="${datasource.password}" />
</bean>

<!-- 配置mybitasSqlSessionFactoryBean -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml" />
</bean>

  <!-- 配置sqlSession -->
<bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>

<!-- 事务配置 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<import resource="applicationContext-user.xml"/>
</beans>
------最佳解决方案--------------------