package com.dz.im.tools;
import java.util.List;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
public class RedisUtil {
//Redis服务器IP
private static String ADDR = PropertiesUtil.Intance.GetProperty("redis.ip");
//Redis的端口号
private static int PORT = Integer.parseInt(PropertiesUtil.Intance.GetProperty("redis.port"));
//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 MAX_ACTIVE = Integer.parseInt(PropertiesUtil.Intance.GetProperty("redis.pool.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 MAX_IDLE =Integer.parseInt(PropertiesUtil.Intance.GetProperty("redis.pool.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 MAX_WAIT =Integer.parseInt(PropertiesUtil.Intance.GetProperty("redis.pool.maxWait"));
//当调用borrow Object方法时，是否进行有效性检查
private static String TEST_ON_BORROW = PropertiesUtil.Intance.GetProperty("redis.pool.testOnBorrow");
//当调用return Object方法时，是否进行有效性检查
private static String TEST_ON_RETURN = PropertiesUtil.Intance.GetProperty("redis.pool.testOnReturn");
//超时时间
private static int TIMEOUT = Integer.parseInt(PropertiesUtil.Intance.GetProperty("redis.timeout"));;
private static JedisPool jedisPool = null;
/**
* 初始化Redis连接池
*/
private static void initialPool(){
try {
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxActive(MAX_ACTIVE);
config.setMaxIdle(MAX_IDLE);
config.setMaxWait(MAX_WAIT);
config.setTestOnBorrow(Boolean.valueOf(TEST_ON_BORROW));
config.setTestOnReturn(Boolean.valueOf(TEST_ON_RETURN));
jedisPool = new JedisPool(config, ADDR, PORT, TIMEOUT);
} catch (Exception e) {
e.printStackTrace();
LoggerUtil.MyLogger.error("init jedispoll error ：%s", e);
}
}
/**
* 在多线程环境同步初始化
*/
private static synchronized void poolInit() {
if (jedisPool == null) {
initialPool();
}
}
/**
* 释放jedis资源
* @param jedis
*/
private static void returnResource(final Jedis jedis) {
if (jedis != null && jedisPool !=null) {
jedisPool.returnResource(jedis);
}
}
/**
* 销毁连接
* @param shardedJedis
*/
private static void returnBrokenResource(final Jedis jedis) {
try {
jedisPool.returnBrokenResource(jedis);
} catch (Exception e) {
LoggerUtil.MyLogger.error("returnBrokenResource error", e);
}
}
/**
* 设置String 值
* @param key
* @param value
* @return
*/
public static boolean setString(String key, String value) {
Jedis jedis=null;
if (jedisPool == null) {
poolInit();
}
try {
if (jedisPool != null) {
jedis = jedisPool.getResource();
jedis.set(key, value);
}
return true;
} catch (Exception ex) {
LoggerUtil.MyLogger.error("set String error", ex);
returnBrokenResource(jedis);
} finally {
returnResource(jedis);
}
return false;
}
/**
* 获取String值
* @param key
* @return value
*/
public static String getString(String key){
String value="";
Jedis jedis=null;
if (jedisPool == null) {
poolInit();
}
try {
if (jedisPool != null) {
jedis = jedisPool.getResource();
value=jedis.get(key);
}
} catch (Exception ex) {
LoggerUtil.MyLogger.error("get String error", ex);
returnBrokenResource(jedis);
} finally {
returnResource(jedis);
}
return value;
}
/**
* 删除String值
* @param key
* @return
*/
public static boolean delString(String key) {
Jedis jedis=null;
if (jedisPool == null) {
poolInit();
}
try {
if (jedisPool != null) {
jedis = jedisPool.getResource();
jedis.del(key);
}
return true;
} catch (Exception ex) {
LoggerUtil.MyLogger.error("del String error.", ex);
returnBrokenResource(jedis);
} finally {
returnResource(jedis);
}
return false;
}
/**
* 添加到List
* @param key
* @param value
* @return
*/
public static boolean addList(String key, String value) {
Jedis jedis=null;
if (jedisPool == null) {
poolInit();
}
try {
if (jedisPool != null) {
jedis = jedisPool.getResource();
jedis.lpush(key, value);
}
return true;
} catch (Exception ex) {
LoggerUtil.MyLogger.error("redis addList error", ex);
returnBrokenResource(jedis);
} finally {
returnResource(jedis);
}
return false;
}
/**
* 截取List
* @param key 列表key
* @param start 开始位置 从0开始
* @param end 结束位置
* @return
*/
public static List<String> rangeList(String key, long start, long end) {
List<String> msgList=null;
Jedis jedis=null;
if (jedisPool == null) {
poolInit();
}
try {
if (jedisPool != null) {
jedis = jedisPool.getResource();
//第一个是key，第二个是起始位置，第三个是结束位置， -1表示取得所有
msgList=jedis.lrange(key, start, end);
}
} catch (Exception ex) {
LoggerUtil.MyLogger.error("redis range list error", ex);
returnBrokenResource(jedis);
} finally {
returnResource(jedis);
}
return msgList;
}
/**
* 检查List长度
* @param key
* @return
*/
public static long countList(String key) {
long redisKeyLen=0;
Jedis jedis=null;
if (jedisPool == null) {
poolInit();
}
try {
if (jedisPool != null) {
jedis = jedisPool.getResource();
redisKeyLen=jedis.llen(key);
}
} catch (Exception ex) {
LoggerUtil.MyLogger.error("countList error", ex);
returnBrokenResource(jedis);
} finally {
returnResource(jedis);
}
return redisKeyLen;
}
/**
* 根据key,修改List里面的值
* @param key
* @param index
* @param value
* @return
*/
public static void updateListByIndex(String key,int index,String value) {
Jedis jedis=null;
if (jedisPool == null) {
poolInit();
}
try {
if (jedisPool != null) {
jedis = jedisPool.getResource();
jedis.lset(key, index, value);
}
} catch (Exception ex) {
LoggerUtil.MyLogger.error("redis updateListByIndex error", ex);
returnBrokenResource(jedis);
} finally {
returnResource(jedis);
}
}
/**
* 删除List里面的值
* @param key
* @param count
* @param value
*/
public static void deleteListByIndex(String key,int count,String value){
Jedis jedis=null;
if (jedisPool == null) {
poolInit();
}
try {
if (jedisPool != null) {
jedis = jedisPool.getResource();
jedis.lrem(key, count, value);
}
} catch (Exception ex) {
LoggerUtil.MyLogger.error("redis updateListByIndex error", ex);
returnBrokenResource(jedis);
} finally {
returnResource(jedis);
}
}
/**
* 添加到Set
* @param key
* @param value
* @return
*/
public static boolean addSet(String key, String value) {
Jedis jedis=null;
if (jedisPool == null) {
poolInit();
}
try {
if (jedisPool != null) {
jedis = jedisPool.getResource();
jedis.sadd(key, value);
}
return true;
} catch (Exception ex) {
LoggerUtil.MyLogger.error("redis addSet error", ex);
returnBrokenResource(jedis);
} finally {
returnResource(jedis);
}
return false;
}
/**
* 添加到Map
* @return
*/
public static boolean addMap(String key,Map<String,String> map){
Jedis jedis=null;
if (jedisPool == null) {
poolInit();
}
try {
if (jedisPool != null) {
jedis = jedisPool.getResource();
jedis.hmset(key, map);
}
return true;
} catch (Exception ex) {
LoggerUtil.MyLogger.error("redis addSet error", ex);
returnBrokenResource(jedis);
} finally {
returnResource(jedis);
}
return false;
}
}