集群redis哨兵模式连接方式，解决database不生效问题（附源码）

时间是一种解药

15247人浏览 · 2022-05-20 18:05:23

时间是一种解药 · 2022-05-20 18:05:23 发布

集群redis哨兵模式连接方式，解决database不生效问题（附源码）

问题背景
项目搭建
总结
Lyric：模糊了视线

问题背景

公司里面项目基本都使用哨兵模式
注意事项：

默认已安装redis
可以根据代码自己创建工程，也可以下载源码进行参考

项目搭建

1 引入pom依赖

<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.0</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.yg</groupId>
    <artifactId>redis-sentinel</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>redis-sentinel</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.12.0</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

2 添加redis哨兵配置，database主动设置，才会生效

package com.yg.redissentinel.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.RedisNode;
import org.springframework.data.redis.connection.RedisSentinelConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import redis.clients.jedis.JedisPoolConfig;


import java.util.HashSet;
import java.util.Set;


@Configuration
public class RedisConfig {


    @Value("${spring.redis.password}")
    public String password;
    @Value("${spring.redis.sentinel.nodes}")
    public String nodes;
    @Value("${spring.redis.sentinel.master}")
    public String master;
    @Value("${spring.redis.database}")
    public int database;          //主动设置，才会生效

    @Bean
    public JedisPoolConfig jedisPoolConfig(){
        return new JedisPoolConfig();
    }

    @Bean
    public RedisSentinelConfiguration sentinelConfiguration(){
        RedisSentinelConfiguration sentinelConfiguration = new RedisSentinelConfiguration();
        Set<RedisNode> redisNodes = new HashSet<>();
        //ip和端口信息可以写在配置文件里
        if (StringUtils.isNotEmpty(nodes)){
            final String[] split = nodes.split(",");
            if (ArrayUtils.isNotEmpty(split)){
                for (String ipPort : split) {
                    if (StringUtils.isEmpty(ipPort)){
                        continue;
                    }
                    final String[] split1 = ipPort.split(":");
                    if (2 == split1.length){
                        RedisNode redisNode = new RedisNode(split1[0],Integer.parseInt(split1[1]));
                        redisNodes.add(redisNode);
                    }
                }
            }
        }
        //setSentinels的参数类型是Iterable<RedisNode>，所以放有RedisNode的集合可以是实现Iterable接口的任意集合，使用list、set都可以
        sentinelConfiguration.setSentinels(redisNodes);
        //监控主节点的名称
        sentinelConfiguration.setMaster(master);
        sentinelConfiguration.setPassword(password);
        sentinelConfiguration.setDatabase(database);
        return sentinelConfiguration;
    }

    /**
     * 连接工厂配置信息，需要注入连接池配置信息
     * @param jedisPoolConfig
     * @return
     */
    @Bean
    public JedisConnectionFactory jedisConnectionFactory(RedisSentinelConfiguration redisSentinelConfiguration, JedisPoolConfig jedisPoolConfig){
        JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory(redisSentinelConfiguration,jedisPoolConfig);
        return jedisConnectionFactory;
    }

    @Bean
    @SuppressWarnings("all")
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
        RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
        template.setConnectionFactory(factory);
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        // key采用String的序列化方式
        template.setKeySerializer(stringRedisSerializer);
        // hash的key也采用String的序列化方式
        template.setHashKeySerializer(stringRedisSerializer);
        // value序列化方式采用jackson
        template.setValueSerializer(jackson2JsonRedisSerializer);
        // hash的value序列化方式采用jackson
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        template.afterPropertiesSet();
        return template;
    }
}

3 application.yml配置

spring:
  redis:
    password: 123456
    database: 1
    sentinel:
      master: mymaster
      nodes: 10.10.195.249:6379,10.10.195.249:6380,10.10.195.249:6381
    timeout: 3000

4 项目目录

5 启动测试连接

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.7.0)

2022-05-20 17:49:58.232  INFO 60192 --- [           main] c.y.r.RedisSentinelApplication           : Starting RedisSentinelApplication using Java 1.8.0_221 on B-YUAN-G with PID 60192 (D:\code\csdn\redis-sentinel\target\classes started by yuan.g in D:\code\csdn\redis-sentinel)
2022-05-20 17:49:58.238  INFO 60192 --- [           main] c.y.r.RedisSentinelApplication           : No active profile set, falling back to 1 default profile: "default"
2022-05-20 17:49:58.770  INFO 60192 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2022-05-20 17:49:58.771  INFO 60192 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Redis repositories in DEFAULT mode.
2022-05-20 17:49:58.786  INFO 60192 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 4 ms. Found 0 Redis repository interfaces.
2022-05-20 17:49:59.094  INFO 60192 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2022-05-20 17:49:59.101  INFO 60192 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2022-05-20 17:49:59.101  INFO 60192 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.63]
2022-05-20 17:49:59.208  INFO 60192 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2022-05-20 17:49:59.208  INFO 60192 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 918 ms
2022-05-20 17:49:59.283  INFO 60192 --- [           main] redis.clients.jedis.JedisSentinelPool    : Trying to find master from available Sentinels...
2022-05-20 17:49:59.312  INFO 60192 --- [           main] redis.clients.jedis.JedisSentinelPool    : Redis master running at 10.10.195.249:7001, starting Sentinel listeners...
2022-05-20 17:49:59.314  INFO 60192 --- [           main] redis.clients.jedis.JedisSentinelPool    : Created JedisSentinelPool to master at 10.10.195.249:6379
2022-05-20 17:49:59.764  INFO 60192 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2022-05-20 17:49:59.772  INFO 60192 --- [           main] c.y.r.RedisSentinelApplication           : Started RedisSentinelApplication in 1.953 seconds (JVM running for 3.28)