Springboot单机多副本运行,解决端口冲突
一、不启动端口方式(仅支持定时、kafka等任务,不支持get/post)
spring:
main:
web-application-type: none
eureka客户端唯一id采用随机数
eureka: instance: instance-id: ${spring.cloud.client.ip-address}:${random.int(10000, 65536)}
二、将随机端口设置为全局系统属性,在配置和代码中引用
public class Application { public static void main(String[] args) { System.setProperty("my.port", String.valueOf(new Random().nextInt(55536) + 10000)); SpringApplication application = new SpringApplication(Application.class); application.run(args); } }
配置中引用:
eureka:
instance:
instance-id: ${spring.cloud.client.ip-address}:${my.port}
配置类中引用:
@Value("${my.port}") private int myport; @Bean public WebServerFactoryCustomizer<ConfigurableWebServerFactory> MyCustomizer(){ return new WebServerFactoryCustomizer<ConfigurableWebServerFactory>() { @Override public void customize(ConfigurableWebServerFactory factory) { factory.setPort(myport); } }; }