Java操作Redis简易增删改查

太过爱你忘了你带给我的痛 2023-06-13 04:59 1阅读 0赞

import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    import redis.clients.jedis.Jedis;
    
    public class TestRedis {
        public static void main(String[] args) {
            new TestRedis().save();
            new TestRedis().update();
            new TestRedis().findAll();
            new TestRedis().findByKey();
            new TestRedis().del();
            new TestRedis().key();
            new TestRedis().string();
            new TestRedis().list();
            new TestRedis().map();
            new TestRedis().set();
        }
    
        protected static Jedis jedis = new Jedis("10.5.7.108", 6379);
        
        //添加数据(key/value)
        public void save(){
            jedis.set("jedis", "jedis_1");
        }
        
        //查询所有
        public void findAll(){
            jedis.keys("*");
        }
        
        //根据Key查询数据
        public void findByKey(){
            jedis.get("jedis");
        }
        
        //根据Key修改数据
        public void update(){
            jedis.rename("jedis", "jedis_new");
        }
        
        //根据Key删除数据
        public void del() {
            jedis.del("jedis");
        }
        
        //操作key
        public void key() {
            System.out.println(jedis.exists("id"));
            System.out.println(jedis.del("id"));
        }
    
        //操作String
        public void string() {
            System.out.println(jedis.set("id", "1"));
            System.out.println(jedis.set("name", "jack"));
        }
    
        //操作List
        public void list() {
    
            // 从头添加
            jedis.lpush("list", "tom", "jack", "jason", "peter", "lc", "easy");
    
            // 从尾添加
            jedis.rpush("list", "andy", "eleven");
    
            // 返回List长度
            jedis.llen("list");
    
            // 取值
            List<String> list = jedis.lrange("list", 0, -1);
            for (String string : list) {
                System.out.println(string);
            }
        }
    
        //操作Map
        public void map() {
            jedis.hset("Mcity", "c1", "北京");
            System.out.println("取值：" + jedis.hget("city", "c1"));
    
            Map<String, String> map = new HashMap<String, String>();
            map.put("c1", "桂林");
            map.put("c2", "天津");
            map.put("c3", "合肥");
            jedis.hmset("Mcity2", map);
    
            List<String> list = jedis.hmget("Mcity2", "c1", "c2", "c3");
            for (String string : list) {
                System.out.println(string);
            }
            System.out.println(jedis.hlen("Mcity2"));
        }
    
        //操作Set
        public void set() {
            jedis.sadd("city", "北京", "上海", "南京", "武汉", "安徽", "广州", "深圳", "山东");
            System.out.println("取最上面的值：" + jedis.spop("city"));
            System.out.println("随机取值" + jedis.srandmember("city"));
    
            jedis.sadd("city2", "北京", "武汉", "河北", "张家界", "辽林", "云南", "陕西", "山西", "黑龙江");
            System.out.println("交集：" + jedis.sinter("city", "city1"));
            System.out.println("并集：" + jedis.sunion("city", "city1"));
            System.out.println("差集：" + jedis.sdiff("city", "city1"));
        }
    }