Java中Redis的简单入门

1.下载redis服务器端程序；

　　在redis.io官网完成服务器端程序下载；可下载安装版或解压版，此处我下载的是解压版，下载完成后解压。

2.配置redis密码，开启redis服务端

　　在redis.windows.conf中搜索requirepass，找到#requirepass 行，在下面新建一行，设置自己的redis访问密码。

　　此处我们配置密码为“redis”

　　

requirepass redis

　　然后CMD进入解压后的目录。开启redis服务端：

　　

3.新建maven quick start项目，导入redis依赖

　　

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>RedisDemo</groupId>
  <artifactId>RedisTest</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>Test</name>
  <description>no</description>
  <dependencies>
      <dependency>
          <groupId>redis.clients</groupId>
          <artifactId>jedis</artifactId>
          <version>2.8.2</version>
      </dependency>
  </dependencies>
</project>

4.新建user类

　　

public class User {
    private String id;
    private String name;
    private String sex;
    private int age;
    
    
    
    public User(String id, String name, int age, String sex) {
        super();
        this.id = id;
        this.name = name;
        this.sex = sex;
        this.age = age;
    }
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getSex() {
        return sex;
    }
    public void setSex(String sex) {
        this.sex = sex;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    @Override
    public String toString() {
        return "User [id=" + id + ", name=" + name + ", sex=" + sex + ", age=" + age + "]";
    }
    
    

}

5.新建测试类

　　

import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

import com.alibaba.fastjson.JSON;

import redis.clients.jedis.Jedis;

public class Main {

    public static void main(String[] args) {
        
        //1.获取jedis对象
        Jedis jedis = new Jedis("127.0.0.1",6379);
        //密码验证
        jedis.auth("redis");
        //创建5个user对象并初始化
        User u1 = new User("ADC","uzi",20,"m");
        User u2 = new User("APC","faker",24,"m");
        User u3 = new User("JUG","clearlove",25,"m");
        User u4 = new User("TOP","ss17",22,"m");
        User u5 = new User("SUP","baolan",24,"m");
        
        //创建HashMap用于在redis中储存多个user
        Map<String,String> userMap = new HashMap<>();
        
        //HashMap填充
        userMap.put("RNG", JSON.toJSONString(u1));
        userMap.put("SKT", JSON.toJSONString(u2));
        userMap.put("EDG", JSON.toJSONString(u3));
        userMap.put("LGD", JSON.toJSONString(u4));
        userMap.put("IG", JSON.toJSONString(u5));
        
        //使用redis的hmset指令来完成储存
        jedis.hmset("Users",userMap);
        
        System.out.println(jedis.hget("Users","RNG"));
    }

}

执行后控制台可以看到会打印 以下信息

{"age":20,"id":"ADC","name":"uzi","sex":"m"}

6.在服务端查看储存结果