Redis数据库操作

  zhangsan:｛
      English:69
      Math:86
      Computer:77
  ｝
  lisi:｛
     English:55
     Math:100
     Computer:88
｝

启动Redis客户端(退出指令为quit)


redis-cli

插入键值对为:


hset student.zhangsan English69
hset student.zhangsan Math86
hset student.zhangsan Computer77
hset student.lisi English55
hset student.lisi Math100
hset student.lisi Computer88

用hgetall命令分别输出zhangsan和lisi的成绩信息：


hgetall student.zhangsan

 hgetall student.lisi

用hget命令查询zhangsan 的Computer成绩:
hget student.zhangsan Computer

修改lisi的Math成绩，改为95：


hset student.lisi Math95

添加数据：English:45 Math:89 Computer:100


scofield:｛
English:45
Math:89
Computer:100
｝

1. import java.util.Map;
2.  import redis.clients.jedis.Jedis;
3.   
4.  public class jedis_test {
5.   
6.   /**
7.    * @param args
8.    */
9.   public static void main(String[] args){
10.  //TODO Auto-generated method stub
11.  Jedis jedis =newJedis("localhost");
12.  jedis.hset("student.scofield","English","45");
13.  jedis.hset("student.scofield","Math","89");
14.  jedis.hset("student.scofield","Computer","100");
15.  Map<String,String>value= jedis.hgetAll("student.scofield");
16.  for(Map.Entry<String,String> entry:value.entrySet())
17.  {
18.   System.out.println(entry.getKey()+":"+entry.getValue());
19.  }
20. }
21.}

1.  import java.util.Map;
2.  import redis.clients.jedis.Jedis;
3.   
4.  publicclass jedis_query {
5.   
6.   /**
7.    * @param args
8.    */
9.   publicstaticvoid main(String[] args){
10.  //TODO Auto-generated method stub
11.  Jedis jedis =newJedis("localhost");
12.  Stringvalue=jedis.hget("student.scofield","English");
13.  System.out.println("scofield's English scoreis: "+value);
14. }
15. }