SpringApplication启动配置，端口日志打印

Maybe

​1.打印端口：

1. private static final Logger LOG = (Logger) LoggerFactory.getLogger(Application.class);
   
2. 
   
3.         public static void main(String[] args) {
   
4.                 SpringApplication.run(IndexApplication.class, args);
   
5.             
   
6.                 SpringApplication app = new SpringApplication(IndexApplication.class);
   
7.                 Environment env = app.run(args).getEnvironment();
   
8.                 LOG.info("启动成功！！");
   
9.                 LOG.info("地址: \thttp://localhost:{}", env.getProperty("server.port"));
   
10. 
    
11.         }

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