java中訪問memcache

用spy和memcached for  java兩種方式對memcache進行操作

 

一、spy

package com.test.memcache;

import java.net.InetSocketAddress;
import java.util.concurrent.Future;
import net.spy.memcached.MemcachedClient;

/**
 * 本類用的包是memcached-2.4.1.jar
 *  ： http://code.google.com/p/spymemcached/
 */
public class SpyTest {
    public void putObject() {
        try {
            /* 建立MemcachedClient 執行個體，並指定memcached服務的IP地址和連接埠號碼 */
            MemcachedClient mc = new MemcachedClient(new InetSocketAddress("127.0.0.1", 11211));
            Future<Boolean> b = null;

            /* 將key值，到期時間(秒)和要緩衝的對象set到memcached中 */
            b = mc.set("key1", 60, "hello1"); // 如果以前存在，則會自動覆蓋

            if (b.get().booleanValue() == true) {
                mc.shutdown();
            }

        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public void getObject() {
        try {
            /* 建立MemcachedClient 執行個體，並指定memcached服務的IP地址和連接埠號碼 */
            MemcachedClient mc = new MemcachedClient(new InetSocketAddress("127.0.0.1", 11211));
            /* 按照key值從memcached中尋找緩衝，不存在則返回null */
            Object b = mc.get("key1");
            System.out.println(b);
            mc.shutdown();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public static void main(String[] args) {
    }
}

 

二、memcached for java

package com.test.memcache;

import com.danga.MemCached.MemCachedClient;
import com.danga.MemCached.SockIOPool;

/**
 * 本類用的是java_memcached-release-2.5.1.jar包
 *      ： http://github.com/gwhalin/Memcached-Java-Client/downloads
 *
 * @author Administrator
 *
 */
public class MemcachedTest {
    String[] servers = { "127.0.0.1:11211" };

    Integer[] weights = { 3 };
    MemCachedClient mcc = new MemCachedClient();
    // 建立一個執行個體對象SockIOPool
    SockIOPool pool = SockIOPool.getInstance();

    public MemcachedTest() {
        pool.setServers(servers);
        pool.setWeights(weights);

        pool.setInitConn(5);
        pool.setMinConn(5);
        pool.setMaxConn(250);
        pool.setMaxIdle(30);

        pool.setMaintSleep(30);
        pool.initialize();
    }

    public void putObject() {
        for (int i = 1; i < 10; i++) {
            Boolean b = mcc.add("key" + i, "hi, michael" + i); // 如果以前存在，則不去更新
            System.out.println("key" + i + b);
        }
    }

    public void replaceObject() {
        Boolean b = mcc.replace("key2", "hi, tom"); // 如果key不存在，則返回flase，更新失敗
        System.out.println("update " + b);
    }

    public void getObject() {
        Object obj = mcc.get("key2");
        System.out.println(obj);
    }

   
    public static void main(String args[]) {
        MemcachedTest tc = new MemcachedTest();
        // tc.putObject();
        // tc.replaceObject();
         tc.getObject();

        tc.pool.shutDown();

    }
}