spring+aop事务配置失败问题，大家帮忙分析下

接口：

public interface UserService {
public void addUser(String username, String password);

public void deleteUser(int id);

public void updateUser(int id, String username);

public List queryUser(String username);
}

接口的实现：

public class UserServiceImpl implements UserService {
	private DataSource dataSource;
	public void addUser(String username, String password) {
                   //正确的sql
		String sql = "insert into aaa (t1,t2,t3) values (seq_food.nextval,'"+username+"','"+password+"')";
		System.out.println(sql);
		JdbcTemplate jdbcTemplate = new JdbcTemplate(getDataSource());
		jdbcTemplate.update(sql);
		
	}

	public void deleteUser(int id) {

	}

	public void updateUser(int id, String username) {
                   //错误的sql，测试回滚
		String sql = "update aa set t2='"+username+"' where t1='"+id+"'";
		System.out.println(sql);
		JdbcTemplate jdbcTemplate = new JdbcTemplate(getDataSource());
		jdbcTemplate.update(sql);
	}

	public List queryUser(String username) {

		return null;
	}

	public DataSource getDataSource() {
		return dataSource;
	}

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

}

测试servlet：

public class UserServlet extends HttpServlet {

	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request, response);
	}

	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html; charset=utf-8");
		ApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
		try {
			UserService userService = (UserService) ctx.getBean("userService");
			userService.addUser("1", "2");
			userService.updateUser(10032190, "zf");
		} catch (DataAccessException e) {
			e.printStackTrace();
		}
		
	}

}
spring配置文件：
<?xml version="1.0" encoding="GB2312"?>
<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"
       xsi:schemaLocation="
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">
	
	<bean id="dataSource" 
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName">
			<value>org.logicalcobwebs.proxool.ProxoolDriver</value>
		</property>
		<property name="url">
			<value>proxool.foodManage</value>
		</property>
	</bean>
	
	<bean id="jdbcTemplate"
		class="org.springframework.jdbc.core.JdbcTemplate">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	<!-- 事务管理 -->
	<bean id="txManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"/>
	</bean>
	
	<tx:advice id="txAdvice" transaction-manager="txManager">
    	<tx:attributes>
      		<tx:method name="query*" propagation="REQUIRED" read-only="true" rollback-for="Exception"/>
      		<tx:method name="*" propagation="REQUIRED" rollback-for="Exception"/>
    	</tx:attributes>
  	</tx:advice>
	
	<aop:config>
    	<aop:pointcut id="userServiceOperation" expression="execution(* cn.com.xy.service.*.*(..))"/>
    	<aop:advisor advice-ref="txAdvice" pointcut-ref="userServiceOperation"/>
  	</aop:config>
  	
  	<bean id="userService" class="cn.com.xy.imp.UserServiceImpl">
		<property name="dataSource" ref="dataSource" />
	</bean>
</beans>



做了一个简单的测试，使用上述的配置和测试代码，运行后，没有更新成功，但还是插入了一条新数据，事务回滚没有起作用，正确的应该是既不更新也不插入，编程式事务测试是好的，但是声明式事务就不对了，可能spring的配置不对，还望大家帮忙看看。