IDEA创建SpringBoot项目，application.yml文件没有自动提示

 1import org.springframework.beans.factory.config.YamlPropertiesFactoryBean;
 2import org.springframework.core.env.PropertiesPropertySource;
 3import org.springframework.core.env.PropertySource;
 4import org.springframework.core.io.support.DefaultPropertySourceFactory;
 5import org.springframework.core.io.support.EncodedResource;
 6
 7import java.io.IOException;
 8import java.util.Properties;
 9
10public class YmlConfigFactory  extends DefaultPropertySourceFactory {
11    @Override
12    public PropertySource<?> createPropertySource(String name, EncodedResource resource) throws IOException {
13        String sourceName = name != null ? name : resource.getResource().getFilename();
14        if (!resource.getResource().exists()) {
15            //不存在就返回一个空的把
16            return new PropertiesPropertySource(sourceName, new Properties());
17        }
18        if (sourceName.endsWith(".yml") || sourceName.endsWith(".yaml")) {
19            //yml这里手动加进去
20            YamlPropertiesFactoryBean factory = new YamlPropertiesFactoryBean();
21            factory.setResources(resource.getResource());
22            factory.afterPropertiesSet();
23            Properties propertiesFromYaml = factory.getObject();
24            return new PropertiesPropertySource(sourceName, propertiesFromYaml);
25        }
26        return super.createPropertySource(name, resource);
27    }
28}