java使用redis

import redis.clients.jedis.Jedis;


public class Main {

    public static void main(String[] args) {
        System.out.println("Hello World!");
        Jedis jedis = new Jedis("localhost");

        System.out.println("Connection to server sucessfully");
        //查看服务是否运行
        System.out.println("Server is running: "+jedis.ping());


        String key1 = "key1";
        StringBuffer sb = new StringBuffer();

        for(int i=0;i<4;i++){
            sb.append("abcdefghij");
        }
        String value1 = sb.toString();
        jedis.set(key1,value1);
        jedis.expire(key1, 60);

        Long startMills = System.currentTimeMillis();
        System.out.println(jedis.get(key1));
        Long endMills = System.currentTimeMillis();
        System.out.println("耗时:"+(endMills - startMills)+"毫秒"+",value1长度:"+value1.length());

    }
	

}

Hello World!
Connection to server sucessfully
Server is running: PONG
abcdefghijabcdefghijabcdefghijabcdefghij

耗时:0毫秒,value1长度:40

127.0.0.1:6379> get key1
"abcdefghijabcdefghijabcdefghijabcdefghij"
127.0.0.1:6379> get key1
"abcdefghijabcdefghijabcdefghijabcdefghij"
127.0.0.1:6379> get key1
"abcdefghijabcdefghijabcdefghijabcdefghij"
127.0.0.1:6379> get key1
"abcdefghijabcdefghijabcdefghijabcdefghij"
127.0.0.1:6379> get key1
(nil)
127.0.0.1:6379>