java Jedis连接Redis

1.java连接代码

    public static void main(String[] args) {
        //构造一个Jedis对象,默认端口号为6379
        Jedis myJedis = new Jedis("192.168.21.128");
        //密码认证
        myJedis.auth("javaroot");
        //测试是否连接成功
        String ping=myJedis.ping();
        //返回ping表示连接成功
        System.out.println("ping = " + ping);
    }

2.代码连接报错：https://blog.csdn.net/qq_48736958/article/details/122725411

3.使用Jedis连接池获取连接的几种写作形式

1)一般写法

public static void main(String[] args) {
        //1.构造一个jedis连接池
        JedisPool pool = new JedisPool("192.168.222.128");
        //2.从Jedis连接池来获取一个连接
        Jedis jedis=pool.getResource();
        jedis.auth("javaroot");
        //3.Jedis操作
        try {
            String ping=jedis.ping();
            System.out.println("ping = " + ping);
            jedis.set("k1","v1");
            jedis.flushAll();
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            //4.归还连接
            jedis.close();
        }
    }

2)利用Java1.7中try-with-resource特性对代码进行简化

public static void main(String[] args) {
        //1.构造一个jedis连接池
        JedisPool pool = new JedisPool("192.168.222.128");

        //2.从Jedis连接池来获取一个连接
        try ( Jedis jedis=pool.getResource()){
            //3.Jedis操作
            jedis.auth("javaroot");
            String ping=jedis.ping();
            System.out.println("ping = " + ping);
            jedis.set("k1","v1");
            jedis.flushAll();
        }
    }