1.
首先配置ehcache.xml
<ehcache>
<diskStore path="java.io.tmpdir"/>
<defaultCache
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="true"
/>
<cache name="org.taha.cache.METHOD_CACHE"
maxElementsInMemory="300"
eternal="false"
timeToIdleSeconds="60"
timeToLiveSeconds="60"
overflowToDisk="true"
/>
</ehcache>
//defaultCache 一定要有不然解析报错
2. spring-ehcache.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans default-autowire="byName">
<bean id="cacheManager"
class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
<property name="configLocation">
<value>classpath:ehcache.xml</value>
</property>
</bean>
<bean id="methodCache"
class="org.springframework.cache.ehcache.EhCacheFactoryBean">
<property name="cacheManager">
<ref local="cacheManager" />
</property>
<property name="cacheName">
<value>org.taha.cache.METHOD_CACHE</value>
</property>
</bean>
<bean id="methodCacheInterceptor"
class="com.infowarelab.cem.easytouch.web.interceptor.MethodCacheInterceptor">
<property name="cache">
<ref local="methodCache" />
</property>
</bean>
<bean id="methodCachePointCut"
class="org.springframework.aop.support.RegexpMethodPointcutAdvisor">
<property name="advice">
<ref local="methodCacheInterceptor" />
</property>
<property name="patterns">
<list>
<value>.*methodOne</value>
<value>.*methodTwo</value> //匹配methodTwo的方法
<value>.*cache.*</value> //匹配以 cache开头的方法
</list>
</property>
</bean>
<bean id="myBean"
class="org.springframework.aop.framework.ProxyFactoryBean">
<property name="target">
<bean class="com.infowarelab.cem.easytouch.web.interceptor.MyBean" />
</property>
<property name="interceptorNames">
<list>
<value>methodCachePointCut</value>
</list>
</property>
</bean>
</beans>
3 MethodCacheInterceptor 代码
package com.infowarelab.cem.easytouch.web.interceptor;
import java.io.Serializable;
import net.sf.ehcache.Cache;
import net.sf.ehcache.Element;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.beans.factory.InitializingBean;
public class MethodCacheInterceptor implements MethodInterceptor,
InitializingBean {
private Cache cache;
/**
*
* sets cache name to be used
*
*/
public void setCache(Cache cache) {
this.cache = cache;
}
/*
*
* (non-Javadoc)
*
*
*
* @see org.aopalliance.intercept.MethodInterceptor#invoke(org.aopalliance.intercept.MethodInvocation)
*
*/
public Object invoke(MethodInvocation invocation) throws Throwable {
String targetName = invocation.getThis().getClass().getName();
String methodName = invocation.getMethod().getName();
Object[] arguments = invocation.getArguments();
Object result;
String cacheKey = getCacheKey(targetName, methodName, arguments);
Element element = cache.get(cacheKey);
if (element == null) {
// call target/sub-interceptor
result = invocation.proceed();
// cache method result
element = new Element(cacheKey, (Serializable) result);
cache.put(element);
}
return element.getValue();
}
/**
*
* creates cache key: targetName.methodName.argument0.argument1...
*
*/
private String getCacheKey(String targetName, String methodName,
Object[] arguments) {
StringBuffer sb = new StringBuffer();
sb.append(targetName).append(".").append(methodName);
if ((arguments != null) && (arguments.length != 0)) {
for (int i = 0; i < arguments.length; i++) {
sb.append(".").append(arguments[i]);
}
}
return sb.toString();
}
/*
*
* (non-Javadoc)
*
*
*
* @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
*
*/
public void afterPropertiesSet() throws Exception {
// TODO Auto-generated method stub
}
}
4 MyBean 代码部分
package com.infowarelab.cem.easytouch.web.interceptor;
import com.infowarelab.cem.easytouch.service.ConfigdbInfoService;
public class MyBean {
private ConfigdbInfoService configdbInfoService;
public String methodOne(String siteId,String name){
String cityName=configdbInfoService.getCityNameByIp("192.168.1.92");
return ""+siteId+name+cityName;
}
public String methodTwo(String siteId,String name,String pwd){
String cityName=configdbInfoService.getCountryNameByIp("192.168.1.92");
return ""+siteId+name+cityName;
}
public void setConfigdbInfoService(ConfigdbInfoService configdbInfoService) {
this.configdbInfoService = configdbInfoService;
}
}
5.CopyOfLogin 代码 测试 AOP 代码
package com.infowarelab.cem.easytouch.web.action.api;
import com.infowarelab.cem.easytouch.web.interceptor.MyBean;
/**
*
* @author hummer.hu
* @date:2008-4-24
*
*/
public class CopyOfLogin extends ApiBaseAction {
private MyBean myBean;
public String execute() {
myBean.methodOne("5555555", "aaaa");
myBean.methodTwo("6666666", "aaaa", "bbbb");
return "login";
}
public void setMyBean(MyBean myBean) {
this.myBean = myBean;
}
}
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------