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);
     }
 }