spring配置xmemcached及使用

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本人其他的一些memcached的博客在这里是比较全的

之前写了一些memcached的配置,但是那个和spring的配置是不能用在生产环境的,今天把spring和xmemcached的配置文件告诉一下大家如何配置,

注释的部分是可以配置多个memcached服务器的

<!-- 引入Memcached客户端开始-->
    <bean name="memcachedClientBuilder" class="net.rubyeye.xmemcached.XMemcachedClientBuilder">        
        <constructor-arg>
            <list>
                <bean class="java.net.InetSocketAddress">
                    <constructor-arg>
                        <value>192.168.100.102</value>
                    </constructor-arg>
                    <constructor-arg>
                        <value>11211</value>
                    </constructor-arg>
                </bean>
                <!-- 
                <bean class="java.net.InetSocketAddress">
                    <constructor-arg>
                        <value>localhost</value>
                    </constructor-arg>
                    <constructor-arg>
                        <value>12001</value>
                    </constructor-arg>
                </bean>
                 -->
            </list>
        </constructor-arg>
        <constructor-arg>
            <list>                 
                <value>1</value>
                <!--
                <value>2</value>
                 -->
            </list>
        </constructor-arg>        
        <property name="connectionPoolSize" value="2"></property>
        <property name="commandFactory">
            <bean class="net.rubyeye.xmemcached.command.TextCommandFactory"></bean>
        </property>
        <property name="sessionLocator">
            <bean class="net.rubyeye.xmemcached.impl.KetamaMemcachedSessionLocator"></bean>
        </property>
        <property name="transcoder">
            <bean class="net.rubyeye.xmemcached.transcoders.SerializingTranscoder" />
        </property>
    </bean>    
    <bean name="memcachedClient" factory-bean="memcachedClientBuilder"
        factory-method="build" destroy-method="shutdown" />    
    <!-- 引入Memcached客户端结束 -->    

具体在java类中使用为,以下为xmemcached的使用

package com.dsideal.demo.memcached;

import java.lang.reflect.Method;
import java.util.List;

import javax.annotation.Resource;

import net.rubyeye.xmemcached.MemcachedClient;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import com.alibaba.fastjson.JSON;
import com.dsideal.common.Cache;
import com.dsideal.common.CacheUpdate;
import com.dsideal.common.Guid;
import com.dsideal.common.MD5;
import com.dsideal.demo.bean.SysLoginPersonBean;
import com.dsideal.demo.service.ICacheLogService;

@Aspect
@Component
public class CacheAopNoMysql {
    @Autowired
    private MemcachedClient memcachedClient;
    
    //aop拦截指向
    @Pointcut("execution (* com.dsideal.demo.service.impl.*.memcache*(..))")  
    public void pointcut(){}  

    /*    
    //方法执行前调用  
    //@Before("pointcut()")  
    public void before() {  
        System.out.println("before");  //2
    }  
    */

    @Resource
    private ICacheLogService cacheLogService;  

    //方法执行的前后调用   
    @Around("pointcut()")  
    //ProceedingJoinPoint 目标类连接点对象
    public Object doAround(ProceedingJoinPoint call) throws Throwable{  
        //返回最终结果
        Object result = null;
        //定义版本号
        String prefixValue = null;
        Method[] methods = call.getTarget().getClass().getDeclaredMethods();    
        Signature signature = call.getSignature();  
        MethodSignature methodSignature = (MethodSignature) signature;    
        Method method = methodSignature.getMethod();  
        for(Method m:methods)
        {
            //循环方法,找匹配的方法进行执行  
            if(m.getName().equals(method.getName()))
            {                
                //增加,判断是不是Cache标签,如果是Cache标签,那么处理缓存的问题
                if(m.isAnnotationPresent(Cache.class))
                {  
                    Cache cache = m.getAnnotation(Cache.class);
                    //Object tempType = m.getGenericReturnType();
                    //如果memcached中存在
                    if(cache!=null)
                    {  
                        //获取注解前缀,这里为 sys,实际使用是为各个业务包名
                        String prefix = cache.prefix();  
                        //获取版本号
                        if(null != memcachedClient.get(prefix))
                        {
                            prefixValue = memcachedClient.get(prefix).toString();
                        }                        
                        else
                        {
                            prefixValue = Guid.getGuid();
                            memcachedClient.set(prefix,60*60*24*30, prefixValue);
                        }
                        
                        //获取方法名+参数类型+参数值+版本号 转 MD5
                        String key = this.getKey(method, call.getArgs(), prefixValue, prefix);  
                         
                        result =memcachedClient.get(key);  
                        if(null == result)
                        {  
                            try {  
                                //执行aop拦截的方法
                                result = call.proceed();  
                                //获取注解配置memcached死亡时间
                                int expiration = cache.expiration();
                                //利用fastjson序列化list<bean>存入memcached中
                                //具体fastjson使用方法请参考:http://www.cnblogs.com/cczhoufeng/archive/2013/04/03/2997871.html
                                if(null == prefixValue)
                                {
                                    memcachedClient.set(prefix,60*60*24*30,Guid.getGuid());
                                } 
                                memcachedClient.set(key, expiration,JSON.toJSONString(result));                                
                            } catch (Throwable e) {  
                                e.printStackTrace();  
                            }  
                        }  
                        else {
                            //如果memcached中存在结果,需要将result反序列化后返回结果
                            String memresult = result.toString();
                            //反序列化
                            List<SysLoginPersonBean> list = JSON.parseArray(memresult, SysLoginPersonBean.class);
                            result = list;
                        }

                    }  
                }
                //如果是Update标签的话,处理更新问题
                else     if(m.isAnnotationPresent(CacheUpdate.class))                    
                    {  
                        /********************************************************/
                        //如果修改操作时
                        CacheUpdate cUpdate = m.getAnnotation(CacheUpdate.class);  
                        if(cUpdate!=null)
                        {  
                            result = call.proceed();
                            String prefix = cUpdate.prefix();  
                            //获取当前版本号
                            if(null != memcachedClient.get(prefix))
                            {
                                //修改后,版本号
                                memcachedClient.replace(prefix,60*60*24*30, Guid.getGuid());
                            }
                            else
                            {
                                memcachedClient.set(prefix,60*60*24*30, Guid.getGuid());
                            }                            
                        }
                        /********************************************************/
                    }
                //找到这个方法就退出循环
                break;  
            }  
        }
        return result;
    }

    /** 
     * 组装key值 
     * @param method 
     * @param args 
     * @return 
     */  
    private String getKey(Method method, Object [] args, String prefixValue, String prefix){  
        StringBuffer sb = new StringBuffer();   
        //获取方法名
        String methodName = method.getName();
        //获取参数类型
        Object[] classTemps = method.getParameterTypes();
        //包名前缀
        sb.append(prefix+"_");
        //存入方法名
        sb.append(methodName);

        for (int i = 0; i < args.length; i++) {
            sb.append(classTemps[i]+"&");
            if (null == args[i]) {
                sb.append("null");
            } else if ("".equals(args[i])) {
                sb.append("*");
            } else {
                sb.append(args[i]);
            }
        }
        sb.append(prefixValue);
        return MD5.getMD5(sb.toString());  

    }  
}

 

posted @ 2013-04-28 11:03  东师理想--周枫  阅读(1819)  评论(2编辑  收藏  举报