spring2.5升级至spring4.1.6

[html] view plain copy print ? <!-- 配置c3p0数据源 -->      <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">          <property name="user" value="${user}"></property>          <property name="password" value="${password}"></property>           <property name="jdbcUrl" value="${JdbcUrl}"></property>          <property name="driverClass" value="${driverClass}"></property>          <property name="numHelperThreads" value="10"></property>              <property name="initialPoolSize" value="${initPoolSize}"></property>          <property name="maxPoolSize" value="${maxPoolSize}"></property>      </bean>  

致命错误在于 [html] view plain copy print ? <property name="user" value="${user}"></property>   value="${user}"，注意！！！这里不能用user!!!改成 [html] view plain copy print ? <property name="user" value="${username}"></property>