求助:spring + JDBC DataSource为什么不注入

//spring 配置
  <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver" />
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/cdb" />
<property name="user" value="root"/>
<property name="password" value="123456"/>
</bean>

<bean id="cpaction" class="com.fw.ls.cp.action.CpAction">
<property name="dataSource" ref="dataSource"></property>
</bean>

//CpAction  

        private DataSource dataSource;

public String add(){
JdbcTemplate jt = new JdbcTemplate(dataSource);
String sql = "insert into cp(id,xuhao,dianhua)values(id,?,?)"; 
jt.update(sql,"casc","1212");
return SUCCESS;
}

        public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}

//错误代码
java.lang.IllegalArgumentException: Property 'dataSource' is required
setDataSource(DataSource dataSource)并没有进入这个方法就报错了

spring?jdbc spring jdbc
[解决办法]
还有Struts吧
看下这个帖子6楼的回答
希望对你有帮助