1、 maven配置
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.9.0</version>
</dependency>
2、 Java操作Redis数据接口
package com.coshaho.learn.redis; import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map; import redis.clients.jedis.Jedis; /**
*
* MyRedisLearn.java Create on 2017年11月4日 下午4:40:39
*
* 类功能说明: Redis Java接口测试
*
* Copyright: Copyright(c) 2013
* Company: COSHAHO
* @Version 1.0
* @Author coshaho
*/
public class MyRedisLearn
{
private Jedis jedis; public static void main(String[] args)
{
MyRedisLearn redis = new MyRedisLearn();
redis.init();
redis.testString();
redis.testMap();
redis.testList();
redis.testSet();
} public void init()
{
jedis = new Jedis("127.0.0.1", 6379);
jedis.auth("coshaho");
} public void testString()
{
// 设置值
jedis.del("string1");
jedis.set("string1","coshaho");
System.out.println(jedis.get("string1")); // 字符串拼接
jedis.append("string1", " is my name"); //拼接
System.out.println(jedis.get("string1")); // 删除字符串
jedis.del("string1");
System.out.println(jedis.get("string1")); // 设置多个键值对
jedis.del("name");
jedis.del("age");
jedis.mset("name","coshaho","age","28");
// 加1操作
jedis.incr("age");
System.out.println(jedis.get("name") + "-" + jedis.get("age"));
} public void testMap()
{
jedis.del("user");
Map<String, String> map = new HashMap<String, String>();
map.put("name", "coshaho");
map.put("age", "28");
map.put("sex", "male");
jedis.hmset("user",map); // 参数1 key 参数2 filed 参数3 field
List<String> rsmap = jedis.hmget("user", "name", "age", "sex");
System.out.println(rsmap); // 删除map中的某个键值
jedis.hdel("user","age");
System.out.println(jedis.hmget("user", "age"));
System.out.println(jedis.hlen("user"));
System.out.println(jedis.exists("user"));
System.out.println(jedis.hkeys("user"));
System.out.println(jedis.hvals("user")); Iterator<String> iter=jedis.hkeys("user").iterator();
while (iter.hasNext())
{
String key = iter.next();
System.out.println(key+":"+jedis.hmget("user",key));
}
} public void testList()
{
// 删除list
jedis.del("language");
System.out.println(jedis.lrange("language",0,-1)); jedis.lpush("language","english");
jedis.lpush("language","chinese");
jedis.lpush("language","japanese"); // 第一个是key，第二个是起始位置，第三个是结束位置，jedis.llen获取长度 -1表示取得所有
System.out.println(jedis.lrange("language",0,-1)); jedis.del("language");
jedis.rpush("language","java");
jedis.rpush("language","c");
jedis.rpush("language","python");
System.out.println(jedis.lrange("language",0,-1)); // 双向列表，jedis 排序
jedis.del("a");
jedis.rpush("a", "1");
jedis.lpush("a","6");
jedis.lpush("a","3");
jedis.lpush("a","9");
System.out.println(jedis.lrange("a",0,-1));
System.out.println(jedis.sort("a"));
System.out.println(jedis.lrange("a",0,-1));
} public void testSet()
{
jedis.del("b");
jedis.sadd("b","张三");
jedis.sadd("b","李四");
jedis.sadd("b","王五");
jedis.sadd("b","胜七");
jedis.sadd("b","段九"); // 移除
jedis.srem("b","胜七");
System.out.println(jedis.smembers("b"));
System.out.println(jedis.sismember("b", "胜七"));
System.out.println(jedis.srandmember("b"));
System.out.println(jedis.scard("b"));
}
}
3、 Java创建Redis连接池
package com.coshaho.learn.redis; import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig; public final class RedisPool
{
//Redis服务器IP
private static String ADDR = "127.0.0.1"; //Redis的端口号
private static int PORT = 6379; //访问密码
private static String AUTH = "coshaho"; //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MAX_TOTAL个jedis实例，则此时pool的状态为exhausted(耗尽)。
private static int MAX_TOTAL = 1024; //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 = 200; //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 = 10000; private static int TIMEOUT = 10000; //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 TEST_ON_BORROW = true; private static JedisPool jedisPool = null; /**
* 初始化Redis连接池
*/
static
{
try
{
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxIdle(MAX_IDLE);
config.setTestOnBorrow(TEST_ON_BORROW);
config.setMaxTotal(MAX_TOTAL);
config.setMaxWaitMillis(MAX_WAIT);
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 close(final Jedis jedis)
{
if (jedis != null) {
jedis.close();;
}
} public static void main(String[] args)
{
RedisPool.getJedis().set("pool", "连接池");
System.out.println(RedisPool.getJedis().get("pool"));
}
}