Java操作Redis详解：从基本连接到集群模式-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_59114219/article/details/126217441

本文详细介绍了如何使用Java连接Redis，包括通过Jedis库进行基本连接，利用连接池优化性能，以及如何在Java中实现对Redis集群的连接。内容覆盖了依赖添加、代码测试和集群模式的配置与应用。

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redis支持哪些语言可以操作

1. 使用jedis

(1)添加jedis依赖

      <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>3.8.0</version>
        </dependency>

(2)代码测试

    @Test
    public  void test01(){
//        链接redis  保证redis服务器运行远程链接
        //该对象把每个redis命令封装成相对应的方法
        Jedis jedis =new Jedis("192.168.111.128",6380);
        //字符串操作命令
        String set = jedis.set("k1", "v1");
        System.out.println(set);
        String setex = jedis.setex("k2", 50l, "v2");
        System.out.println(setex);
        Long aLong = jedis.setnx("k5","v11");
        System.out.println(aLong);
        jedis.hset("k3","name","张三");
        jedis.hset("k3","age","15");
        jedis.hset("k3","sex","男");

        Map<String,String> map = new HashMap<String, String>();
        map.put("name","李四");
        map.put("age","15");
        map.put("sex","女");
        jedis.hset("k4",map);

        jedis.close();
    }

2. 使用连接池连接redis

    @Test
    public void test02(){
        //创建连接池的配置类
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        jedisPoolConfig.setMaxIdle(20);
        jedisPoolConfig.setMinIdle(5);
        jedisPoolConfig.setMaxWait(Duration.ofMillis(3000));
        JedisPool jedisPool = new JedisPool(jedisPoolConfig,"192.168.111.128",6380);

        long start =System.currentTimeMillis();

        for (int i = 0; i < 1000; i++) {
            //从jedis连接池获取资源
            Jedis jedis=new Jedis("192.168.111.128",6380);
            String ping = jedis.ping();
            //释放资源到池子
            jedis.close();
        }
        long end =System.currentTimeMillis();
        System.out.println("总耗时:"+(end-start));
    }

3. java连接redis集群模式

   @Test
    public void test03(){
        Set<HostAndPort> set1 = new HashSet<>();
        set1.add(new HostAndPort("192.168.111.128",6001));
        set1.add(new HostAndPort("192.168.111.128",6002));
        set1.add(new HostAndPort("192.168.111.128",6003));
        set1.add(new HostAndPort("192.168.111.128",6004));
        set1.add(new HostAndPort("192.168.111.128",6005));
        set1.add(new HostAndPort("192.168.111.128",6006));
        JedisCluster jedisCluster = new JedisCluster(set1);

        jedisCluster.set("k1","刘德华");
        jedisCluster.close();


    }