Spring Boot系列教程十：Spring boot集成Sentinel Redis

前言

上一篇文章介绍了spring boot集成单点的redis，然而实际生产环境使用单点的redis风险很高，一旦宕机整个服务将无法使用，这篇文章介绍如何使用基于sentinel的redis高可用方案。

哨兵sentinel的地址如下：

192.168.12.194:26379

192.168.12.194:36379

192.168.12.194:46379

 

Redis的地址如下：

192.168.12.194:6379

192.168.12.194:6380

192.168.12.194:6381

 

实现：

properties配置文件中添加配置信息：

spring.redis.database=0
spring.redis.password=123456

# pool settings ...池配置  
spring.redis.pool.max-idle=8  
spring.redis.pool.min-idle=0  
spring.redis.pool.max-active=8  
spring.redis.pool.max-wait=-1 

#哨兵监听redis server名称
spring.redis.sentinel.master=mymaster
#哨兵的配置列表
spring.redis.sentinel.nodes=192.168.12.194:26379,192.168.12.194:36379,192.168.12.194:46379

创建RedisComponent类

package com.woniu.RedisComponent;

import java.io.UnsupportedEncodingException;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import com.woniu.bean.User;


@Component
public class RedisComponent {
    
    @Autowired
    //操作字符串的template，StringRedisTemplate是RedisTemplate的一个子集
    private StringRedisTemplate stringRedisTemplate;
    
    @Autowired
    // RedisTemplate，可以进行所有的操作  
    private RedisTemplate<Object,Object> redisTemplate;
    
    public void set(String key, String value){
        ValueOperations<String, String> ops = this.stringRedisTemplate.opsForValue();
        boolean bExistent = this.stringRedisTemplate.hasKey(key);
        if (bExistent) {
            System.out.println("this key is bExistent!");
        }else{
            ops.set(key, value);
        }
    }
    
    public String get(String key){
        return this.stringRedisTemplate.opsForValue().get(key);
    }
    
    public void del(String key){
        this.stringRedisTemplate.delete(key);
    }
    
    public void sentinelSet(User user){
        String key = null;
        try {
            key = new String(user.getId().getBytes("gbk"),"utf-8");
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        System.out.println(key);
        redisTemplate.opsForValue().set(key, user.toString());
    }
    
    public String sentinelGet(String key){
        return stringRedisTemplate.opsForValue().get(key);
    }
}

添加测试类的测试代码

 

package com.woniu;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import com.woniu.RedisComponent.RedisComponent;
import com.woniu.bean.User;

@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringbootSentinelredisApplicationTests {

    @Autowired
    private RedisComponent redisComponet;
    
    @Test
    public void sentinelSet(){
        User user = new User();
        user.setId("001");
        user.setAge("30");
        user.setName("wangpengfei");
        
        redisComponet.sentinelSet(user);
    }

    @Test
    public void sentinelGet(){
        String str = redisComponet.sentinelGet("001");
        System.out.println(str);
    }
}