spring3.1使用cache

< beans  xmlns ="http://www.springframework.org/schema/beans"  xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"   
    xmlns:cache ="http://www.springframework.org/schema/cache"   
    xmlns:p ="http://www.springframework.org/schema/p"   
    xsi:schemaLocation ="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd  
    http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd" >  
     < cache:annotation-driven  />  
     <!--  generic cache manager  -->  
     < bean  id ="cacheManager"  class ="org.springframework.cache.support.SimpleCacheManager" >  
         < property  name ="caches" >  
             < set >  
                 < bean  class ="org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean"  p:name ="default" />  
                 < bean  class ="org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean"  p:name ="sys_resource" />  
             </ set >  
         </ property >  
     </ bean >  
</ beans >  

package org.jeasyweb.framework.sys_user.service;

import java.util.Iterator;
import java.util.Set;

import org.jeasyweb.framework.sys_user.entity.SysResource;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.AbstractTransactionalJUnit4SpringContextTests;

@ContextConfiguration({ "classpath:applicationContext-dataSource.xml",
        "classpath:applicationContext-role.xml",
        "classpath:applicationContext-cache.xml" })
public  class UserServiceTest  extends
        AbstractTransactionalJUnit4SpringContextTests {
    @Autowired
    UserService userService;

    @Test
     public  void testHello() {
        Set<SysResource> resources = userService
                .getResourceByUserId( new Long(1));
        Iterator<SysResource> it = resources.iterator();
    }

    @Test
     public  void testCache() {
        Set<SysResource> resources2 = userService.getResourceByUserId( new Long(
                1));
    }
}

    @Override
    @Cacheable(value = "sys_resource", key = "'getResourceByUserId_' + #id")
     public Set<SysResource> getResourceByUserId(Long id) {
// .