Java操作memcached

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1.加载commons-pool-1.5.6.jar、java_memcached-release_2.6.6.jar、slf4j-api-1.6.1.jar、slf4j-simple-1.6.1.jar

2.创建memcached工具类：

public class MemcachedUtil {     /**     * memcached客户端单例     */    private static MemCachedClient cachedClient = new MemCachedClient();         /**     * 初始化连接池     */    static {        //获取连接池的实例        SockIOPool pool = SockIOPool.getInstance();                 //服务器列表及其权重        String[] servers = {"127.0.0.1:11211"};        Integer[] weights = {3};                 //设置服务器信息        pool.setServers(servers);        pool.setWeights(weights);                 //设置初始连接数、最小连接数、最大连接数、最大处理时间        pool.setInitConn(10);        pool.setMinConn(10);        pool.setMaxConn(1000);        pool.setMaxIdle(1000*60*60);                 //设置连接池守护线程的睡眠时间        pool.setMaintSleep(60);                 //设置TCP参数，连接超时        pool.setNagle(false);        pool.setSocketTO(60);        pool.setSocketConnectTO(0);                 //初始化并启动连接池        pool.initialize();                 //压缩设置，超过指定大小的都压缩//      cachedClient.setCompressEnable(true);//      cachedClient.setCompressThreshold(1024*1024);    }         private MemcachedUtil(){    }         public static boolean add(String key, Object value) {        return cachedClient.add(key, value);    }         public static boolean add(String key, Object value, Integer expire) {        return cachedClient.add(key, value, expire);    }         public static boolean put(String key, Object value) {        return cachedClient.set(key, value);    }         public static boolean put(String key, Object value, Integer expire) {        return cachedClient.set(key, value, expire);    }         public static boolean replace(String key, Object value) {        return cachedClient.replace(key, value);    }         public static boolean replace(String key, Object value, Integer expire) {        return cachedClient.replace(key, value, expire);    }         public static Object get(String key) {        return cachedClient.get(key);    }     }

3. 创建需要缓存的对象：

public class UserBean implements Serializable {     private static final long serialVersionUID = 9174194101246733501L;     private String username;         private String password;         public UserBean(String username, String password) {        this.username = username;        this.password = password;    }         public String getUsername() {        return username;    }         public void setUsername(String username) {        this.username = username;    }         public String getPassword() {        return password;    }         public void setPassword(String password) {        this.password = password;    }         @Override    public int hashCode() {        final int prime = 31;        int result = 1;        result = prime * result                + ((password == null) ? 0 : password.hashCode());        result = prime * result                + ((username == null) ? 0 : username.hashCode());        return result;    }     @Override    public boolean equals(Object obj) {        if (this == obj)            return true;        if (obj == null)            return false;        if (getClass() != obj.getClass())            return false;        UserBean other = (UserBean) obj;        if (password == null) {            if (other.password != null)                return false;        } else if (!password.equals(other.password))            return false;        if (username == null) {            if (other.username != null)                return false;        } else if (!username.equals(other.username))            return false;        return true;    }     @Override    public String toString() {        return "username:" + username + ",password:" + password;    }}

4.创建测试用例：

public class MemcachedUtilTest {     @Test    public void testMemcached() {        MemcachedUtil.put("hello", "world", 60);        String hello = (String) MemcachedUtil.get("hello");        Assert.assertEquals("world", hello);                 for(int i = 0; i < 10000000; ++i) {            UserBean userBean = new UserBean("Jason" + i, "123456-" + i);            MemcachedUtil.put("user" + i, userBean, 60);            Object obj = MemcachedUtil.get("user" + i);            Assert.assertEquals(userBean, obj);        }    }}

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