Java操作Redis之Jedis用法详解
package com.zws.redis.examples;import java.util.List;
import redis.clients.jedis.Jedis;
public class RedisList {
public static void main(String[] args) {
String host = "192.168.137.131";
int port = 6379;
Jedis jedis = new Jedis(host, port);
jedis.auth("redis");
jedis.ping();
System.out.println("===========添加一个list===========");
Long cnt = jedis.del("collections");
System.out.println("del cnt:" + cnt);
jedis.lpush("collections", "ArrayList", "Vector", "Stack", "HashMap", "WeakHashMap", "LinkedHashMap");
jedis.lpush("collections", "HashSet");
jedis.lpush("collections", "TreeSet");
jedis.lpush("collections", "TreeMap");
jedis.lpush("collections", "BrrayList");
jedis.lpush("collections", "CrrayList");
jedis.lpush("collections", "CrrayList");
List collections = jedis.lrange("collections", 0, -1);
System.out.println("collections的内容:" + collections);//-1代表倒数第一个元素,-2代表倒数第二个元素, 倒序出来
System.out.println("collections区间0-3的元素:"+jedis.lrange("collections", 0, 3));// 倒序出来
System.out.println("===============================");
// 删除列表指定的值 ,第二个参数为删除的个数(有重复时),后add进去的值先被删,类似于出栈
System.out.println("删除指定元素个数:"+jedis.lrem("collections", 2, "HashMap"));
System.out.println("collections的内容:"+jedis.lrange("collections", 0, -1));
System.out.println("删除下标0-3区间之外的元素:"+jedis.ltrim("collections", 0, 3));
System.out.println("collections的内容:"+jedis.lrange("collections", 0, -1));
System.out.println("collections列表出栈(左端):"+jedis.lpop("collections"));
System.out.println("collections的内容:"+jedis.lrange("collections", 0, -1));
System.out.println("collections添加元素,从列表右端,与lpush相对应:"+jedis.rpush("collections", "EnumMap"));
System.out.println("collections的内容:"+jedis.lrange("collections", 0, -1));
System.out.println("collections列表出栈(右端):"+jedis.rpop("collections"));
System.out.println("collections的内容:"+jedis.lrange("collections", 0, -1));
System.out.println("修改collections指定下标1的内容:"+jedis.lset("collections", 1, "LinkedArrayList"));
System.out.println("collections的内容:"+jedis.lrange("collections", 0, -1));
System.out.println("===============================");
System.out.println("collections的长度:"+jedis.llen("collections"));
System.out.println("获取collections下标为2的元素:"+jedis.lindex("collections", 2));
System.out.println("===============================");
jedis.del("sortedList");
jedis.lpush("sortedList", "3","6","2","0","7","4");
System.out.println("sortedList排序前:"+jedis.lrange("sortedList", 0, -1));
System.out.println("sortedList返回有序:" + jedis.sort("sortedList"));
System.out.println("sortedList排序后:"+jedis.lrange("sortedList", 0, -1));
jedis.close();
//Redis中还有阻塞式的列表弹出命令以及在列表之间移动元素的命令:blpop, brpop, rpoplpush, brpoplpush等。
}
}
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