Redis的Java客户端Jedis

Myth丶恋晨 2023-05-22 22:36 30阅读 0赞

1.  先Jedis的依赖  
    
    
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.1.0</version>
        </dependency>
2.  代码示例如下，各个类型的测试，看注释  
    连接了主从redis
    
        public class RedisConnectTest { 
             Jedis masterJedis;
             Jedis slaveJedis;
        
            @Before
            public  void connect() { 
                masterJedis = new Jedis("192.168.72.131",6379);
                slaveJedis = new Jedis("192.168.72.129",6379);
            }
        
            // string 类型
            @Test
            public void stringTest() { 
                masterJedis.set("k1", "我好帅");
                String k1 = slaveJedis.get("k1");
                System.out.println(k1);
            }
        
            @Test
            // list 类型
            public void listTest() { 
                // 存数据
                masterJedis.lpush("lkey01", "v1","v2","v3","v4");
                // 取数据
                List<String> lkey01 = slaveJedis.lrange("lkey01", 0, -1);
                System.out.println(lkey01);
            }
        
            @Test
            // set 类型
            public void setTest() { 
                // 存数据
                masterJedis.sadd("skey01", "sv1","sv2","sv3");
                // 取数据
                Set<String> skey01 = slaveJedis.smembers("skey01");
                System.out.println(skey01);
        
                // 判断某个数据是否存在
                Boolean sismember = slaveJedis.sismember("skey01", "sv1");
                System.out.println(sismember);
            }
        
            @Test
            // hash类型
            public void hashTest() { 
                // 存一对键值
                Long hset = masterJedis.hset("小红", "age", "23");
                System.out.println(hset);
                // 一次存多个
                HashMap<String,String> map = new HashMap<String, String>();
                map.put("id", "1");
                map.put("name", "小明");
                map.put("sex", "男");
                masterJedis.hmset("user", map);
        
                // 取
                String age = slaveJedis.hget("小红", "age");
                System.out.println(age);
        
                Map<String, String> user = slaveJedis.hgetAll("user");
                for (Map.Entry<String, String> stringStringEntry : user.entrySet()) { 
                    System.out.println(stringStringEntry.getKey() + "->" + stringStringEntry.getValue());
                }
            }
        
            @Test
            // zset类型
            public void zsetTest() { 
                // 存一个
                masterJedis.zadd("zkey01", 60d,"zv1");
        
                Map<Double, String> scoreMembers = new HashMap<Double, String>();
                scoreMembers.put(30d, "zv2");
                scoreMembers.put(70d, "zv3");
                scoreMembers.put(80d, "zv4");
                // 存多个
                masterJedis.zadd("zeky02", scoreMembers);
        
                // q取出不带score
                Set<String> zkey01 = slaveJedis.zrange("zkey01", 0, -1);
                System.out.println(zkey01);
        
                // 取出带score
                Set<Tuple> zeky02 = slaveJedis.zrangeWithScores("zeky02", 0, -1);
                for (Tuple tuple : zeky02) { 
                    System.out.println(tuple.getScore()+ "->" + tuple.getElement());
                }
            }
        }