Java操作Redis-Jedis

Jedis：Redis官方推荐的java连接开发工具，使用java操作Redis中间件，如果你要使用java操作Jedis，那么一定要对Jedis十分的熟悉

1. 导入对应依赖

<!--导入jedis包-->
       <!-- https://mvnrepository.com/artifact/redis.clients/jedis -->
       <dependency>
           <groupId>redis.clients</groupId>
           <artifactId>jedis</artifactId>
           <version>3.6.3</version>
       </dependency>
    <!--导入fastjson-->
       <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
       <dependency>
           <groupId>com.alibaba</groupId>
           <artifactId>fastjson</artifactId>
           <version>1.2.78</version>
       </dependency>

2. 编码测试

• 连接数据库
• 操作命令
• 断开连接

public class TestPing {
    public static void main(String[] args) {
        //1. new Jedis对象即可
        Jedis jedis = new Jedis("127.0.0.1", 6379);
        String ping = jedis.ping();
        //2. 测试是否连接成功
        System.out.println(ping);       //PONG
    }
}

public class TestTs {
    public static void main(String[] args) {
        //new Jedis对象即可
        Jedis jedis = new Jedis("xxx.xxx.xxx.xxx", 6379);
        JSONObject jsonObject = new JSONObject();
        jedis.flushDB();
        jsonObject.put("hello","world");
        jsonObject.put("name","Lys");
        String s = jsonObject.toJSONString();
        //开启事务
       // jedis.watch(s); 监控对象
        Transaction multi = jedis.multi();
        try {
            multi.set("user1",s);
            multi.set("user2",s);
            int i=1/0;
            multi.exec();
        }catch(Exception e){
            multi.discard();
            e.printStackTrace();
        }
        finally {
            System.out.println(jedis.get("user1")+jedis.get("user2"));
            jedis.close();
        }
    }
}