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redis的java代码（入门）
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互联网集市收集整理的这篇技术教程文章主要介绍了redis的java代码（入门），小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含5125字，纯文字阅读大概需要8分钟。
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Demo
package com.zy;
import redis.clients.jedis.Jedis;
public class Demo {
public static void main(String[] args) {
String url="120.77.83.186";
Jedis jedis = new Jedis(url,6379);
System.out.println(jedis);
String ping = jedis.ping();
System.out.println(ping);
jedis.close();
}
}
RedisTest
package com.zy;
import redis.clients.jedis.Jedis;
import java.util.*;
public class RedisTest {
private static String host="120.77.83.186";
private static int port=6379;
public static void main(String[] args) {
Jedis jedis = new Jedis(host, port);
//all key
Set<String> keys = jedis.keys("*");
// Iterator<String> iterator = keys.iterator();
for (Iterator<String> stringIterator = keys.iterator(); stringIterator.hasNext(); ) {
String next = stringIterator.next();
System.out.println(next);
}
Boolean k1 = jedis.exists("k1");
System.out.println("exists:k1 "+k1);
Long k11 = jedis.ttl("k1");
System.out.println("ttl:k1 "+k11);
//String
RedisString(jedis);
RedisList(jedis);
RedisSet(jedis);
RedisHash(jedis);
RedisZSet(jedis);
jedis.close();
}
private static void RedisZSet(Jedis jedis) {
System.out.println("************Zset**********");
jedis.zadd("zset1",60d,"v1");
jedis.zadd("zset1",70d,"v2");
jedis.zadd("zset2",70d,"v2");
jedis.zadd("zset3",80d,"v3");
Set<String> zset1 = jedis.zrange("zset1", 0, -1);
for (Iterator<String> iterator = zset1.iterator(); iterator.hasNext(); ) {
String next = iterator.next();
System.out.println(next);
}
}
private static void RedisHash(Jedis jedis) {
System.out.println("**************Hash************");
jedis.hset("hash1","username","lisi");
System.out.println(jedis.hget("hash1","username"));
Map<String, String> map=new HashMap<String, String>();
map.put("userName","zy");
map.put("telephone","15572106051");
map.put("age","20");
String hash2 = jedis.hmset("hash2",map);
List<String> hmget = jedis.hmget("hash2", "userName", "telephone", "age");
for (String s : hmget) {
System.out.println(s);
}
}
private static void RedisSet(Jedis jedis) {
System.out.println("***************Set*************");
jedis.sadd("orders", "jd1");
jedis.sadd("orders", "jd2");
jedis.sadd("orders", "jd3");
Set<String> orders = jedis.smembers("orders");
for (Iterator<String> iterator = orders.iterator(); iterator.hasNext(); ) {
String next = iterator.next();
System.out.println(next);
}
int size = jedis.smembers("orders").size();
System.out.println("set前的大小"+size);
jedis.srem("orders","jd2");
System.out.println("set后的大小"+jedis.smembers("orders").size());
}
private static void RedisList(Jedis jedis) {
System.out.println("****************List***************");
jedis.lpush("redislist","v1","v2","v3");
List<String> redislist = jedis.lrange("redislist", 0, -1);
for (String s : redislist) {
System.out.println(s);
}
}
private static void RedisString(Jedis jedis) {
System.out.println("***************String***********************");
if (!jedis.exists("k1")){
jedis.append("k1","myredis");
}
System.out.println(jedis.get("k1"));
jedis.set("k4","k4_redis");
// System.out.println("***************************************");
jedis.mset("str11","v1","str22","v2","str33","v3");
List<String> mget = jedis.mget("str11", "str22", "str33");
System.out.println(mget);
}
}
TestRedisTranaction
package com.zy;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.Response;
import redis.clients.jedis.Transaction;
public class TestReidsTranaction {
private static String host="120.77.83.186";
private static int port=6379;
public static void main(String[] args) {
Jedis jedis = new Jedis(host, port);
Transaction multi = jedis.multi();
Response<String> response = multi.get("seriaNum");
multi.set("serialNum","s002");
response=multi.get("serialNum");
multi.lpush("list1","a");
multi.lpush("list2","b");
multi.lpush("list3","c");
multi.exec();
System.out.println("serialNum :"+response.get());
jedis.close();
}
}
TestReidsMS
package com.zy;
import redis.clients.jedis.Jedis;
public class TestReidsMS {
private static String host="120.77.83.186";
public static void main(String[] args) throws InterruptedException {
Jedis jedis_M = new Jedis(host, 6379);
Jedis jedis_S = new Jedis(host, 6380);
jedis_S.slaveof("127.0.0.1", 6379);
jedis_M.set("k6", "v6");
Thread.sleep(500);
System.out.println(jedis_S.get("k6"));
jedis_M.close();
jedis_S.close();
}
}
JedisPoolUtil
package com.zy;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
public class JedisPoolUtil {
private static volatile JedisPool jedisPool = null;
// 被volatile修饰的变量不会被本地线程缓存，对该变量的读写都是直接操作共享内存。
private JedisPoolUtil() {
}
public static JedisPool getJedisPoolInstance() {
if (null == jedisPool) {
synchronized (JedisPoolUtil.class) {
if (null == jedisPool) {
JedisPoolConfig poolConfig = new JedisPoolConfig();
poolConfig.setMaxTotal(1000);
poolConfig.setMaxIdle(32);
poolConfig.setMaxWaitMillis(100 * 1000);
poolConfig.setTestOnBorrow(true);
jedisPool = new JedisPool(poolConfig, "120.77.83.186", 6379);
}
}
}
return jedisPool;
}
public static void release(JedisPool jedisPool, Jedis jedis) {
if (null != jedis) {
Jedis jedis2 = null;
try {
jedis2 = jedisPool.getResource();
} finally {
jedis2.close();
}
}
}
}
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