今天试了一下Jedis里连接池JedisPool的的使用。代码如下：
package com.myapp.jedis.pooldemo;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
/**
* Created by baidu on 16/10/18.
*/
public class TestPool {
private static JedisPool pool = null;
public static JedisPool getPool() {
if (pool == null) {
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxTotal(500);
config.setMaxIdle(5);
config.setMaxWaitMillis(1000*10);
//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；
config.setTestOnBorrow(true);
//new JedisPool(config, ADDR, PORT, TIMEOUT, AUTH);
pool = new JedisPool(config, "[ip]", 8379, 10000, "[auth]");
}
return pool;
}
public synchronized static Jedis getResource() {
if (pool == null) {
pool = getPool();
}
return pool.getResource();
}
// 返还到连接池
// Deprecated
// 换成用完之后, redis.close()
/*
public static void returnResource(Jedis redis) {
if (redis != null) {
pool.returnResource(redis);
}
}
*/
public static void main(String[] args) {
Jedis redis = null;
int loop = 1;
while (loop < 20) {
try {
long start = System.currentTimeMillis();
redis = getResource();
redis.set("k1", "v1");
String ret = redis.get("k1");
long end = System.currentTimeMillis();
System.out.printf("Get ret from redis: %s with %d millis\n", ret, end-start);
} finally {
if (redis != null) {
redis.close();
}
}
loop++;
}
}
}
其中，有个函数returnResource已经deprecated了，现在Jedis的close方法重写了，用Jedis.close来释放资源。
跑了20次，运行结果如下：
Get ret from redis: v1 with 564 millis Get ret from redis: v1 with 235 millis Get ret from redis: v1 with 225 millis Get ret from redis: v1 with 214 millis Get ret from redis: v1 with 210 millis Get ret from redis: v1 with 232 millis Get ret from redis: v1 with 209 millis Get ret from redis: v1 with 211 millis Get ret from redis: v1 with 239 millis Get ret from redis: v1 with 207 millis Get ret from redis: v1 with 215 millis Get ret from redis: v1 with 223 millis Get ret from redis: v1 with 291 millis Get ret from redis: v1 with 220 millis Get ret from redis: v1 with 214 millis Get ret from redis: v1 with 219 millis Get ret from redis: v1 with 257 millis Get ret from redis: v1 with 214 millis Get ret from redis: v1 with 211 millis Process finished with exit code 0
可以看出，第一次500多毫秒，之后都是200多毫秒，速度有提高。
时间： 2024-12-22 19:37:27