1.如果要使用memcache,需要先安裝memcache服務
下載地址:http://download.csdn.net/detail/cs1075341779/9622251
Memcache官方網站:http://www.danga.com/memcached
安裝memcache參考http://jingyan.baidu.com/article/4f7d5712a6b6671a201927c4.html
2.實現memcache :需要 java_memcached-release_2.6.6.jar
import java.util.Date; import com.danga.MemCached.MemCachedClient; import com.danga.MemCached.SockIOPool; public class MemCachedManager { // 創建全局的唯一實例 private static MemCachedClient mcc = new MemCachedClient(); protected static MemCachedManager memCachedManager = new MemCachedManager(); // 設置與緩存服務器的連接池 static { // 服務器列表和其權重 String[] servers = { "127.0.0.1:11211" }; Integer[] weights = { 3 }; // 獲取socke連接池的實例對象 SockIOPool pool = SockIOPool.getInstance(); // 設置服務器信息 pool.setServers(servers); pool.setWeights(weights); // 設置初始連接數、最小和最大連接數以及最大處理時間 pool.setInitConn(5); pool.setMinConn(5); pool.setMaxConn(250); pool.setMaxIdle(1000 * 60 * 60 * 6); // 設置主線程的睡眠時間 pool.setMaintSleep(30); // 設置TCP的參數,連接超時等 pool.setNagle(false); pool.setSocketTO(3000); pool.setSocketConnectTO(0); // 初始化連接池 pool.initialize(); // 壓縮設置,超過指定大小(單位爲K)的數據都會被壓縮 //mcc.setCompressEnable(true); //mcc.setCompressThreshold(64 * 1024); } /** * 保護型構造方法,不允許實例化! * */ protected MemCachedManager() { } /** * 獲取唯一實例. * * @return */ public static MemCachedManager getInstance() { return memCachedManager; } /** * 添加一個指定的值到緩存中. * * @param key * @param value * @return */ public boolean add(String key, Object value) { return mcc.add(key, value); } public boolean set(String key, Object value) { return mcc.set(key, value); } public boolean add(String key, Object value, Date expiry) { return mcc.add(key, value, expiry); } public boolean replace(String key, Object value) { return mcc.replace(key, value); } public boolean replace(String key, Object value, Date expiry) { return mcc.replace(key, value, expiry); } /** * 根據指定的關鍵字獲取對象. * * @param key * @return */ public Object get(String key) { return mcc.get(key); } public void flush(){ mcc.flushAll(); } }
建立實體:
import java.io.Serializable; public class Bean implements Serializable { private static final long serialVersionUID = 1945562032261336919L; private String name; public String getName() { return name; } public void setName(String name) { this.name = name; } }
測試:
public static void main(String[] args) { MemCachedManager cache = MemCachedManager.getInstance(); cache.add("helloworld", "hello"); System.out.print("get value : " + cache.get("helloworld")); }