redis工具类

方式一、

import redis.clients.jedis.*;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

/**
* <p>Description:redis</p>
*
* @Author: Austin
**/
public class JedisUtil implements Serializable {

//Redis服务器IP
private static String addr;

//Redis的端口号
private static int port;

//访问密码
private static String auth;

//可用连接实例的最大数目，默认值为8；
//如果赋值为-1，则表示不限制；如果pool已经分配了maxActive个jedis实例，则此时pool的状态为exhausted(耗尽)。
private static int maxActive;

//控制一个pool最多有多少个状态为idle(空闲的)的jedis实例，默认值也是8。
private static int maxIdle;

//等待可用连接的最大时间，单位毫秒，默认值为-1，表示永不超时。如果超过等待时间，则直接抛出JedisConnectionException；
private static int maxWait;

private static int timeOut;

//在borrow一个jedis实例时，是否提前进行validate操作；如果为true，则得到的jedis实例均是可用的；
private static boolean testOnBorrow;

public static Jedis jedis;//非切片额客户端连接

public static JedisPool jedisPool;//非切片连接池

public static ShardedJedis shardedJedis;//切片额客户端连接

public static ShardedJedisPool shardedJedisPool;//切片连接池

/**
* 初始化片池
**/
private static void initialPool() {
// 池基本配置
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxTotal(maxActive);
config.setMaxIdle(maxIdle);
config.setMaxWaitMillis(maxWait);
config.setTestOnBorrow(testOnBorrow);
jedisPool = new JedisPool(config, addr, port);
}

/**
* 初始化切片池
**/
private static void initialShardedPool() {
// 池基本配置
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxTotal(maxActive);
config.setMaxIdle(maxIdle);
config.setMaxWaitMillis(maxWait);
config.setTestOnBorrow(testOnBorrow);
// slave链接
List<JedisShardInfo> shards = new ArrayList<JedisShardInfo>();
shards.add(new JedisShardInfo(addr, port, auth));

// 构造池
shardedJedisPool = new ShardedJedisPool(config, shards);
}

public static void afterPropertiesSet() throws Exception {
// TODO Auto-generated method stub
initialPool();
initialShardedPool();
try {
shardedJedis = shardedJedisPool.getResource();
} catch (Exception e) {
System.out.println("连接shardedJedisPool失败!");
}
try {
jedis = jedisPool.getResource();
} catch (Exception e) {
System.out.println("连接jedisPool失败!");
}
}

public void setAddr(String addr) {
this.addr = addr;
}

public String getAddr() {
return addr;
}

public int getPort() {
return port;
}

public void setPort(int port) {
JedisUtil.port = port;
}

public String getAuth() {
return auth;
}

public void setAuth(String auth) {
JedisUtil.auth = auth;
}

public int getMaxActive() {
return maxActive;
}

public void setMaxActive(int maxActive) {
JedisUtil.maxActive = maxActive;
}

public int getMaxIdle() {
return maxIdle;
}

public void setMaxIdle(int maxIdle) {
JedisUtil.maxIdle = maxIdle;
}

public int getMaxWait() {
return maxWait;
}

public void setMaxWait(int maxWait) {
JedisUtil.maxWait = maxWait;
}

public int getTimeOut() {
return timeOut;
}

public void setTimeOut(int timeOut) {
JedisUtil.timeOut = timeOut;
}

public boolean isTestOnBorrow() {
return testOnBorrow;
}

public void setTestOnBorrow(boolean testOnBorrow) {
JedisUtil.testOnBorrow = testOnBorrow;
}
}

方式二、

import redis.clients.jedis.*;

import java.io.Serializable;

/**
* <p>Description:</p>
*
* @Author: Austin
**/
public class RedisUtil implements Serializable {
//Redis服务器IP
private static String addr;

//Redis的端口号
private static int port;

//访问密码
private static String auth;

//可用连接实例的最大数目，默认值为8；
//如果赋值为-1，则表示不限制；如果pool已经分配了maxActive个jedis实例，则此时pool的状态为exhausted(耗尽)。
private static int maxActive;

//控制一个pool最多有多少个状态为idle(空闲的)的jedis实例，默认值也是8。
private static int maxIdle;

//等待可用连接的最大时间，单位毫秒，默认值为-1，表示永不超时。如果超过等待时间，则直接抛出JedisConnectionException；
private static int maxWait;

private static int timeOut;

//在borrow一个jedis实例时，是否提前进行validate操作；如果为true，则得到的jedis实例均是可用的；
private static boolean testOnBorrow;

public static Jedis jedis;//非切片额客户端连接

public static JedisPool jedisPool;//非切片连接池

public static ShardedJedis shardedJedis;//切片额客户端连接

public static ShardedJedisPool shardedJedisPool;//切片连接池

/**
* 初始化Redis连接池
*/
static {
try {
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxTotal(maxActive);
config.setMaxIdle(maxIdle);
config.setMaxWaitMillis(maxWait);
config.setTestOnBorrow(testOnBorrow);
jedisPool = new JedisPool(config, addr, port, timeOut, auth);
} catch (Exception e) {
e.printStackTrace();
}
}

/**
* 获取Jedis实例
* @return
*/
public synchronized static Jedis getJedis() {
try {
if (jedisPool != null) {
Jedis resource = jedisPool.getResource();
return resource;
} else {
return null;
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
}

/**
* 释放jedis资源
* @param jedis
*/
public static void returnResource(final Jedis jedis) {
if (jedis != null) {
jedisPool.returnResource(jedis);
}
}

public void setAddr(String addr) {
this.addr = addr;
}

public String getAddr() {
return addr;
}

public int getPort() {
return port;
}

public void setPort(int port) {
this.port = port;
}

public String getAuth() {
return auth;
}

public void setAuth(String auth) {
this.auth = auth;
}

public int getMaxActive() {
return maxActive;
}

public void setMaxActive(int maxActive) {
this.maxActive = maxActive;
}

public int getMaxIdle() {
return maxIdle;
}

public void setMaxIdle(int maxIdle) {
this.maxIdle = maxIdle;
}

public int getMaxWait() {
return maxWait;
}

public void setMaxWait(int maxWait) {
this.maxWait = maxWait;
}

public int getTimeOut() {
return timeOut;
}

public void setTimeOut(int timeOut) {
this.timeOut = timeOut;
}

public boolean isTestOnBorrow() {
return testOnBorrow;
}

public void setTestOnBorrow(boolean testOnBorrow) {
this.testOnBorrow = testOnBorrow;
}
}