Spring 使用注解配置使用ehcache

使用ehcache-spring-annotations使得在工程中简单配置即可使用缓存
下载地址：http://code.google.com/p/ehcache-spring-annotations/

 

需要的jar包，首先需要的是我们之前做SpringMVC时的各个Spring的jar包
然后需要把ehcache-spring-annotations-1.2.0文件夹内lib内的，非spring的jar加进去，因为我们已经增加了我们版本的spring
然后还需要动态代理的cglib包

 

SpringMVC的搭建就不再说了，参考
Spring MVC 入门示例 http://cuisuqiang.iteye.com/blog/2042931
Spring MVC Controller配置方式 http://cuisuqiang.iteye.com/blog/2043697

 

在spring主配置文件中配置ehcache注解的使用：

<?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:mvc="http://www.springframework.org/schema/mvc"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:ehcache="http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
			http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
			http://www.springframework.org/schema/context 
			http://www.springframework.org/schema/context/spring-context-3.0.xsd
			http://www.springframework.org/schema/aop 
			http://www.springframework.org/schema/aop/spring-aop-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/mvc 
			http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
			http://www.springframework.org/schema/context 
			http://www.springframework.org/schema/context/spring-context-3.0.xsd
			http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring
     		http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring/ehcache-spring-1.1.xsd">
	<ehcache:annotation-driven cache-manager="ehCacheManager" />
	<bean id="ehCacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
		<property name="configLocation" value="classpath:ehcache.xml"/>
	</bean>
	<bean id="sacheService" class="test.CacheService"></bean>
</beans>

 

配置缓存配置文件ehcache.xml，改文件放在SRC下：

<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd"
	updateCheck="false">
	<diskStore path="java.io.tmpdir" />
	<defaultCache eternal="false" maxElementsInMemory="1000"
		overflowToDisk="false" diskPersistent="false" timeToIdleSeconds="0"
		timeToLiveSeconds="600" memoryStoreEvictionPolicy="LRU" />
	<cache name="testCache" eternal="false" maxElementsInMemory="100"
		overflowToDisk="false" diskPersistent="false" timeToIdleSeconds="0"
		timeToLiveSeconds="300" memoryStoreEvictionPolicy="LRU" />
</ehcache>

 

CacheService是示例类，代码如下：

package test;
import java.util.Date;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import com.googlecode.ehcache.annotations.Cacheable;
import com.googlecode.ehcache.annotations.TriggersRemove;
public class CacheService{
    @SuppressWarnings("deprecation")
	@Cacheable(cacheName = "testCache")
    public String getName(String code){
    	System.out.println("查询编号：" + code);
        return new Date().toLocaleString() + "-->" + code;
    }
    @SuppressWarnings("deprecation")
    @Transactional(propagation = Propagation.REQUIRED) 
    public String update(String code){
    	System.out.println("更新编号：" + code);
    	return new Date().toLocaleString() + "-->" + code;
    }
    @TriggersRemove(cacheName="testCache",removeAll=true)
    public void flush(){
    	System.out.println("情况缓存");
        System.out.println("Processing testFlushing");
    }
}

 

改类包含根据参数获取缓存值，更新缓存，情况缓存，都是使用注解标签实现。

 

Action类需要改动一下，代码如下：

package test;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
// http://localhost:8080/spring/hello.do?key=1&code=java
@org.springframework.stereotype.Controller
public class HelloController{
	private CacheService sacheService;
	@SuppressWarnings("deprecation")
	@RequestMapping("/hello.do")
	public String hello(HttpServletRequest request,HttpServletResponse response){
		String key = request.getParameter("key");
		if("1".equals(key)){
			request.setAttribute("message", sacheService.getName(request.getParameter("code")));
		}else if("2".equals(key)){
			request.setAttribute("message", sacheService.update(request.getParameter("code")));
		}else{
			sacheService.flush();
			request.setAttribute("message", sacheService.getName(request.getParameter("code")));
		}
		return "hello";
	}
	public CacheService getSacheService() {
		return sacheService;
	}
	@Autowired
	public void setSacheService(CacheService sacheService) {
		this.sacheService = sacheService;
	}
}

 

根据key做不同的操作，然后分别访问以下几个路径，为了方便看效果和学习，我把工程代码放到了附件：
第一次没有缓存
http://localhost:8080/spring/hello.do?key=1&code=java
读取缓存
http://localhost:8080/spring/hello.do?key=1&code=java
更新缓存
http://localhost:8080/spring/hello.do?key=2&code=java
读取最新缓存
http://localhost:8080/spring/hello.do?key=1&code=java
情况缓存
http://localhost:8080/spring/hello.do?key=3

 

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