<?xml version="1.0" encoding="GBK"?>
<project name="spring" basedir="." default="">
<property name="src" value="src"/>
<property name="dest" value="classes"/>
<path id="classpath">
<fileset dir="../../lib">
<include name="**/*.jar"/>
</fileset>
<pathelement path="${dest}"/>
</path>
<target name="compile" description="Compile all source code">
<delete dir="${dest}"/>
<mkdir dir="${dest}"/>
<copy todir="${dest}">
<fileset dir="${src}">
<exclude name="**/*.java"/>
</fileset>
</copy>
<javac destdir="${dest}" debug="true" includeantruntime="yes"
deprecation="false" optimize="false" failonerror="true">
<src path="${src}"/>
<classpath refid="classpath"/>
<compilerarg value="-Xlint:deprecation"/>
</javac>
</target>
<target name="run" description="Run the main class" depends="compile">
<java classname="lee.SpringTest" fork="yes" failonerror="true">
<classpath refid="classpath"/>
</java>
</target>
</project>
<?xml version="1.0" encoding="GBK"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:cache="http://www.springframework.org/schema/cache"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/cache
http://www.springframework.org/schema/cache/spring-cache-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<context:component-scan
base-package="org.crazyit.app.service"/>
<cache:annotation-driven cache-manager="cacheManager" />
<!-- 配置EhCache的CacheManager
通过configLocation指定ehcache.xml文件的位置 -->
<bean id="ehCacheManager"
class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"
p:configLocation="classpath:ehcache.xml"
p:shared="false" />
<!-- 配置基于EhCache的缓存管理器
并将EhCache的CacheManager注入该缓存管理器Bean -->
<bean id="cacheManager"
class="org.springframework.cache.ehcache.EhCacheCacheManager"
p:cacheManager-ref="ehCacheManager" >
</bean>
</beans>
<?xml version="1.0" encoding="gbk"?>
<ehcache>
<diskStore path="java.io.tmpdir" />
<!-- 配置默认的缓存区 -->
<defaultCache
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
maxElementsOnDisk="10000000"
diskExpiryThreadIntervalSeconds="120"
memoryStoreEvictionPolicy="LRU"/>
<!-- 配置名为users的缓存区 -->
<cache name="users"
maxElementsInMemory="10000"
eternal="false"
overflowToDisk="true"
timeToIdleSeconds="300"
timeToLiveSeconds="600" />
</ehcache>
package lee;
import org.crazyit.app.service.UserService;
import org.crazyit.app.domain.User;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2014, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class SpringTest
{
public static void main(String[] args)
{
ApplicationContext ctx =
new ClassPathXmlApplicationContext("beans.xml");
UserService us = ctx.getBean("userService" , UserService.class);
// 第一次调用us对象的方法时会执行该方法，并缓存方法的结果
User u1 = us.getUsersByNameAndAge("孙悟空", 500);
// 指定使用name作为缓存key，因此主要两次调用方法的name参数相同
// 缓存机制就会生效
User u2 = us.getAnotherUser("孙悟空", 400);
System.out.println(u1 == u2); // 输出true
}
}
package org.crazyit.app.domain;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2014, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class User
{
private String name;
private int age;
public User()
{}
public User(String name, int age)
{
super();
this.name = name;
this.age = age;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public int getAge()
{
return age;
}
public void setAge(int age)
{
this.age = age;
}
}
package org.crazyit.app.service;
import org.crazyit.app.domain.User;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2014, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public interface UserService
{
User getUsersByNameAndAge(String name, int age);
User getAnotherUser(String name, int age);
}
package org.crazyit.app.service.impl;
import org.crazyit.app.service.UserService;
import org.crazyit.app.domain.User;
import org.springframework.stereotype.Service;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.context.annotation.Scope;
/**
* Description: <br/>
* 网站: <a href="http://www.crazyit.org">疯狂Java联盟</a> <br/>
* Copyright (C), 2001-2014, Yeeku.H.Lee <br/>
* This program is protected by copyright laws. <br/>
* Program Name: <br/>
* Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
@Service("userService")
@Cacheable(value = "users" , key="#name")
public class UserServiceImpl implements UserService
{
public User getUsersByNameAndAge(String name, int age)
{
System.out.println("--正在执行findUsersByNameAndAge()查询方法--");
return new User(name, age);
}
public User getAnotherUser(String name, int age)
{
System.out.println("--正在执行findAnotherUser()查询方法--");
return new User(name, age);
}
}
