| package com.ruoyi.common.exception.file; | 
|   | 
| import java.io.PrintStream; | 
| import java.io.PrintWriter; | 
|   | 
| /** | 
|  * 文件上传异常类 | 
|  *  | 
|  * @author ruoyi | 
|  */ | 
| public class FileUploadException extends Exception | 
| { | 
|   | 
|     private static final long serialVersionUID = 1L; | 
|   | 
|     private final Throwable cause; | 
|   | 
|     public FileUploadException() | 
|     { | 
|         this(null, null); | 
|     } | 
|   | 
|     public FileUploadException(final String msg) | 
|     { | 
|         this(msg, null); | 
|     } | 
|   | 
|     public FileUploadException(String msg, Throwable cause) | 
|     { | 
|         super(msg); | 
|         this.cause = cause; | 
|     } | 
|   | 
|     @Override | 
|     public void printStackTrace(PrintStream stream) | 
|     { | 
|         super.printStackTrace(stream); | 
|         if (cause != null) | 
|         { | 
|             stream.println("Caused by:"); | 
|             cause.printStackTrace(stream); | 
|         } | 
|     } | 
|   | 
|     @Override | 
|     public void printStackTrace(PrintWriter writer) | 
|     { | 
|         super.printStackTrace(writer); | 
|         if (cause != null) | 
|         { | 
|             writer.println("Caused by:"); | 
|             cause.printStackTrace(writer); | 
|         } | 
|     } | 
|   | 
|     @Override | 
|     public Throwable getCause() | 
|     { | 
|         return cause; | 
|     } | 
| } |