如何在spring boot项目中创建statup目录

Question

我正在制作一个目录来存储所有上传的文件在我的spring boot应用程序启动时。

此目录的路径存储在application.properties文件中。我正在尝试阅读这个路径，并在项目启动时创建一个目录。在启动时创建目录时，我无法获取路径。

upload.path = "/src/main/resources"

import org.springframework.boot.context.properties.ConfigurationProperties;

@ConfigurationProperties(prefix = "upload")
public class StorageProperties {

    private String path;

    public String getPath() {
        return path;
    }

    public void setPath(String path) {
        this.path = path;
    }

}

Answer 1

• 步骤1：使StorageProperties成为组件
• 步骤2：自动连接启动组件中组件
• 步骤3：创建文件夹

@Component
@ConfigurationProperties(prefix = "upload")
public class StorageProperties {

  private String path;

  // getters and setters
}

@Component
public class StartupComponent implements CommandLineRunner {
   private final StorageProperties storageProps;

   public StartupComponent (StorageProperties storageProps){
     this.storageProps = storageProps;
   }

  @Override
  public void run(String... args) throws Exception {
     String path = storageProps.getPath();
     // do your stuff here
  }
}