springboot启动时加载外部配置文件的方法-创新互联

前言

相信很多人选择Spring Boot主要是考虑到它既能兼顾Spring的强大功能，还能实现快速开发的便捷。本文主要给大家介绍了关于spring boot启动时加载外部配置文件的相关内容，下面话不多说了，来随着小编一起学习学习吧。

业务需求:

加载外部配置文件，部署时更改比较方便。

先上代码：

@SpringBootApplication
public class Application {

 public static void main(String[] args) throws Exception {
  SpringApplicationBuilder springApplicationBuilder = new SpringApplicationBuilder(Application.class);
  springApplicationBuilder.web(true);
  Properties properties = getProperties();
  StandardEnvironment environment = new StandardEnvironment();
  environment.getPropertySources().addLast(new PropertiesPropertySource("micro-service", properties));
  springApplicationBuilder.environment(environment);
  springApplicationBuilder.run(args);
 }

 private static Properties getProperties() throws IOException {
  PropertiesFactoryBean propertiesFactoryBean = new PropertiesFactoryBean();
  ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
  propertiesFactoryBean.setIgnoreResourceNotFound(true);
  Resource fileSystemResource = resolver.getResource("file:/opt/company/test.properties");
  propertiesFactoryBean.setLocations(fileSystemResource);
  propertiesFactoryBean.afterPropertiesSet();
  return propertiesFactoryBean.getObject();
 }
}