【SpringCloud】Ribbon负载均衡规则替换

忘是亡心i 2022-10-17 11:11 156阅读 0赞

Ribbon默认的规则是轮询RoundRobinRule，那么如何替换了？

修改cloud-consumer-order80

注意配置细节

**官方文档明确给出了警告：**  
这个自定义配置类不能放在@ComponentScan所扫描的当前包下以及子包下，  
否则我们自定义的这个配置类就会被所有的Ribbon客户端所共享，达不到特殊化定制的目的了。

SpringBoot的任何入口启动类都需要添加注解@SpringBootApplication

![在这里插入图片描述][20210602204746909.png]  
点进去看  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW5nanVueWVz_size_16_color_FFFFFF_t_70]  
新建一个package。com.xiang.myrule  
新建MySelfRule规则类  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW5nanVueWVz_size_16_color_FFFFFF_t_70 1]

@Configuration
    public class MySelfRule {
        
    
        @Bean
        public IRule myRule(){
        
            //定义为随机访问
            return new RandomRule();
        }
    }

主启动类添加@RibbonClient  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW5nanVueWVz_size_16_color_FFFFFF_t_70 2]

@RibbonClient(name = "CLOUD_PAYMENT_SERVICE",configuration = MySelfRule.class)

当前order80服务访问CLOUD\_PAYMENT\_SERVICE

测试一下  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW5nanVueWVz_size_16_color_FFFFFF_t_70 3]启动成功  
访问 http://127.0.0.1/consumer/payment/get/4![http://localhost/consumer/payment/get/4][http_localhost_consumer_payment_get_4]

[20210602204746909.png]: /images/20221014/f0413226783749159b467fcd22bf595e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW5nanVueWVz_size_16_color_FFFFFF_t_70]: /images/20221014/6de98b4b2b9b4f01bfaa178cb4cb6a29.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW5nanVueWVz_size_16_color_FFFFFF_t_70 1]: /images/20221014/e0f9dcdf0c364b22a2c6b9bb01691f5e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW5nanVueWVz_size_16_color_FFFFFF_t_70 2]: /images/20221014/d8bcd7dde1de4fb0923353c9bb9115e9.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW5nanVueWVz_size_16_color_FFFFFF_t_70 3]: /images/20221014/53a97174b44740b493c7f196881f1ad5.png
[http_localhost_consumer_payment_get_4]: /images/20221014/a0d822d74a8846709b0aa73636bc84f3.png