SpringBoot优先加载设置

1.启动类继承CommandLineRunner接口

2.如果预先加载多个用@Order(value=1) value=加载等级   等级数越小优先级越大

　　例 

package com.example.demo;

import com.example.demo.controller.NettyClient;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

//实现CommandLineRunner
@SpringBootApplication
public class DemoApplication implements CommandLineRunner {
    private static final Logger log = LoggerFactory.getLogger(DemoApplication.class);
public static void main(String[] args) {
        SpringApplication app = new SpringApplication(DemoApplication.class);
        app.run(args);
    }

    @Override
    public void run(String... args) throws Exception {
       
    }
}