java操作Redis
*
–
+ 1 环境准备
+
* 1.1. 引入依赖
* 1.2.创建jedis对象
* 1.3.事务
+ 2 操作key相关API
+ 3操作String相关API
+ 4操作List相关API
+ 5操作Set的相关API
+ 6 操作ZSet相关API
+ 7 操作Hash相关API
使用Java来操作Redis，Jedis是Redis官方推荐使用的Java连接redis的客户端。
1 环境准备
1.1. 引入依赖
<dependency>
<groupId>redis.clientsgroupId>
<artifactId>jedisartifactId>
<version>3.2.0version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>fastjsonartifactId>
<version>1.2.70version>
dependency>
1.2.创建jedis对象
public static void main(String[] args) {
Jedis jedis = new Jedis("192.168.75.101", 6379);
jedis.select(0);
jedis.close();
}
- 开放端口6379
firewall-cmd --zone=public --add-port=6379/tcp --permanet
1
重启防火墙服务
systemctl restart firewalld.service
- 阿里云服务器控制台配置安全组
- 重启redis-server
[root@AlibabaECS bin]
- 操作命令 TestPing.java
public class TestPing {
public static void main(String[] args) {
Jedis jedis = new Jedis("192.168.xx.xxx", 6379);
String response = jedis.ping();
System.out.println(response);
}
}
- 断开连接
1.3.事务
public class TestTX {
public static void main(String[] args) {
Jedis jedis = new Jedis("198.168.xxx.xx", 6379);
JSONObject jsonObject = new JSONObject();
jsonObject.put("hello", "world");
jsonObject.put("name", "kuangshen");
Transaction multi = jedis.multi();
String result = jsonObject.toJSONString();
try {
multi.set("user1", result);
multi.set("user2", result);
multi.exec();
}catch (Exception e){
multi.discard();
} finally {
System.out.println(jedis.get("user1"));
System.out.println(jedis.get("user2"));
jedis.close();
}
}
}
2 操作key相关API
private Jedis jedis;
@Before
public void before(){
this.jedis = new Jedis("192.168.XXX.XXX", 7000);
}
@After
public void after(){
jedis.close();
}
@Test
public void testKeys(){
jedis.del("name");
jedis.del("name","age");
Boolean name = jedis.exists("name");
System.out.println(name);
Long age = jedis.expire("age", 100);
System.out.println(age);
Long age1 = jedis.ttl("newage");
System.out.println(age1);
String s = jedis.randomKey();
jedis.rename("age","newage");
String name1 = jedis.type("name");
System.out.println(name1);
String maps = jedis.type("maps");
System.out.println(maps);
}
3操作String相关API
@Test
public void testString(){
jedis.set("name","秦羽");
String s = jedis.get("name");
System.out.println(s);
jedis.mset("content","tj","address","xqq");
List<String> mget = jedis.mget("name", "content", "address");
mget.forEach(v-> System.out.println("v = " + v));
String set = jedis.getSet("name", "小明");
System.out.println(set);
}
4操作List相关API
@Test
public void testList(){
jedis.lpush("names1","张三","王五","赵柳","win7");
jedis.rpush("names1","xiaomingming");
List<String> names1 = jedis.lrange("names1", 0, -1);
names1.forEach(name-> System.out.println("name = " + name));
String names11 = jedis.lpop("names1");
System.out.println(names11);
jedis.linsert("lists", BinaryClient.LIST_POSITION.BEFORE,"xiaohei","xiaobai");
}
5操作Set的相关API
@Test
public void testSet(){
jedis.sadd("names","zhangsan","lisi");
jedis.smembers("names");
jedis.sismember("names","qinyu");
}
6 操作ZSet相关API
@Test
public void testZset(){
jedis.zadd("names",10,"张三");
jedis.zrange("names",0,-1);
jedis.zcard("names");
jedis.zrangeByScore("names","0","100",0,5);
}
7 操作Hash相关API
@Test
public void testHash(){
jedis.hset("maps","name","zhangsan");
jedis.hget("maps","name");
jedis.hgetAll("mps");
jedis.hkeys("maps");
jedis.hvals("maps");
}
Original: https://blog.csdn.net/qq_43585922/article/details/128266627
Author: 秦 羽
Title: java操作redis
原创文章受到原创版权保护。转载请注明出处：https://www.johngo689.com/785489/
转载文章受原作者版权保护。转载请注明原作者出处！