Using SpringBoot to integrate redis multi-master and multi-slave clusters

Environmental preparation

First we need to prepare a redis cluster. You can refer to the article I wrote:https://blog.csdn.net/m0_51510236/article/details/132684529. This time I have prepared a cluster, as shown in the figure (a multi-master and multi-slave redis cluster):

The code warehouse address used in this article:https://gitcode.net/m0_51510236/redis-cluster-example

SpringBoot integrates Redis cluster

New Project

Let’s create a new SpringBoot project to connect to this cluster and go tospring initializr for initialization:

Then we import it into the development tool, as shown in the figure:

Modify SpringBoot configuration file

Edit application.yaml file, the file content is:

# 设置端口
server:
  port: 8080

spring:
  redis:
    cluster:
      # 设置redis集群当中都有哪些节点，注意修改为你自己的节点地址
      nodes:
        - 192.168.1.171:6379
        - 192.168.1.172:6379
        - 192.168.1.173:6379
        - 192.168.1.174:6379
        - 192.168.1.175:6379
        - 192.168.1.176:6379

Write code tests

We will write a controller to test this cluster

Write DTO

We first write a DTO class that is stored in redis RedisValueDTO.java:

package city.yueyang.redis.entity;

import java.io.Serializable;

/**
 * <p>
 * 存储Redis值类型的数据传输类
 * </p>
 *
 * @author XiaoHH
 * @version 1.0.0
 * @date 2023-09-06 星期三 11:21:28
 * @file RedisValueDTO.java
 */
public class RedisValueDTO implements Serializable {
    
    

    /**
     * Redis的Key
     */
    private String key;

    /**
     * 设置到Redis当中的值
     */
    private String value;

    public String getKey() {
    
    
        return key;
    }

    public void setKey(String key) {
    
    
        this.key = key;
    }

    public String getValue() {
    
    
        return value;
    }

    public void setValue(String value) {
    
    
        this.value = value;
    }
}

Write Controller

Write a Controller class that can set and get redis values ​​RedisController.java:

package city.yueyang.redis.controller;

import city.yueyang.redis.entity.RedisValueDTO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

/**
 * <p>
 * 操作Redis的Controller
 * </p>
 *
 * @author XiaoHH
 * @version 1.0.0
 * @date 2023-09-06 星期三 11:49:01
 * @file RedisController.java
 */
@RestController
@RequestMapping("/redis")
public class RedisController {
    
    

    /**
     * 注入Redis的操作对象
     */
    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    /**
     * 设置一个值到Redis当中
     *
     * @param value 设置的内容对象
     * @return 返回Success
     */
    @PostMapping
    public String set(@RequestBody RedisValueDTO value) {
    
    
        this.redisTemplate.opsForValue().set(value.getKey(), value.getValue());
        return "Success";
    }

    /**
     * 根据key在Redis当中获取一个值
     *
     * @param key redis的key
     * @return 缓存当中的值
     */
    @GetMapping("/{key}")
    public String get(@PathVariable("key") String key) {
    
    
        return this.redisTemplate.opsForValue().get(key);
    }
}

The project structure at this time is:

Code warehouse address:https://gitcode.net/m0_51510236/redis-cluster-example

Test the code written

Let’s directly use the http tool that comes with the development tool idea to test. The test code is as follows:

### 设置的值的内容
POST http://localhost:8080/redis
Content-Type: application/json

{
  "key": "k1",
  "value": "v1"
}

### 获取值的内容
GET http://localhost:8080/redis/k1

We test the first setting value and see that Success is returned:

We test the first content to get the value, and we can see that the value we set is successfully obtained v1:

This concludes SpringBoot's integration of Redis.