springboot redis多数据源怎样实现切换-乐工具技术知识

在Spring Boot中配置和使用多个Redis数据源并进行切换，可以通过以下步骤实现：

1. 添加依赖

首先，确保你的pom.xml文件中包含了Spring Boot和Redis的依赖：


    
        org.springframework.boot
        spring-boot-starter-data-redis
    
    
        org.springframework.boot
        spring-boot-starter-jdbc

2. 配置多个数据源

在application.yml或application.properties文件中配置多个Redis数据源：

# application.yml
spring:
  redis:
    primary:
      host: localhost
      port: 6379
      password: your_password
      database: 0
    secondary:
      host: localhost
      port: 6380
      password: your_password
      database: 0

3. 创建数据源配置类

创建一个配置类来定义多个Redis数据源：

import org.springframework.beans.factory.annotation.Bean;
import org.springframework.beans.factory.annotation.Configuration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Primary;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceClientConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;

@Configuration
public class RedisConfig {

    @Bean
    @Primary
    public LettuceConnectionFactory primaryRedisConnectionFactory() {
        RedisStandaloneConfiguration config = new RedisStandaloneConfiguration();
        config.setHostName("localhost");
        config.setPort(6379);
        config.setPassword("your_password");
        config.setDatabase(0);
        return new LettuceConnectionFactory(config);
    }

    @Bean
    public LettuceConnectionFactory secondaryRedisConnectionFactory() {
        RedisStandaloneConfiguration config = new RedisStandaloneConfiguration();
        config.setHostName("localhost");
        config.setPort(6380);
        config.setPassword("your_password");
        config.setDatabase(0);
        return new LettuceConnectionFactory(config);
    }

    @Bean
    @Primary
    public RedisTemplate primaryRedisTemplate() {
        RedisTemplate template = new RedisTemplate<>();
        template.setConnectionFactory(primaryRedisConnectionFactory());
        return template;
    }

    @Bean
    public RedisTemplate secondaryRedisTemplate() {
        RedisTemplate template = new RedisTemplate<>();
        template.setConnectionFactory(secondaryRedisConnectionFactory());
        return template;
    }
}

4. 使用不同的数据源

在你的服务类中，你可以使用不同的数据源来操作Redis：

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

@Service
public class RedisService {

    @Autowired
    private StringRedisTemplate primaryRedisTemplate;

    @Autowired
    private StringRedisTemplate secondaryRedisTemplate;

    public void usePrimaryDataSource() {
        primaryRedisTemplate.opsForValue().set("key", "value");
        String value = https://www.yisu.com/ask/primaryRedisTemplate.opsForValue().get("key");
        System.out.println("Value from primary data source: " + value);
    }

    public void useSecondaryDataSource() {
        secondaryRedisTemplate.opsForValue().set("key", "value");
        String value = https://www.yisu.com/ask/secondaryRedisTemplate.opsForValue().get("key");
        System.out.println("Value from secondary data source: " + value);
    }
}

5. 切换数据源

你可以在你的业务逻辑中根据需要切换不同的数据源：

@Service
public class BusinessService {

    @Autowired
    private RedisService redisService;

    public void performOperation() {
        // Use primary data source
        redisService.usePrimaryDataSource();

        // Switch to secondary data source
        redisService.useSecondaryDataSource();
    }
}

通过以上步骤，你可以在Spring Boot应用中配置和使用多个Redis数据源，并根据需要切换它们。