上传一个文件在struts1 [英] Uploading a file in struts1

问题描述

我想在struts1应用程序中上传一个文件。

目前的实现是使用File，如下所示：

 < ; html：file property =upload/> 
  

但是，如果从远程机器访问应用程序，则不允许上传文件，文件的名称，而不是整个文件。 使用< html：file property = 上传/ >不会让你的应用程序上传文件。

为了支持上传功能，你的表单必须有enctype =multipart / form-data

 < html：form action =fileUploadActionmethod =postenctype =multipart / form-数据> 
档案：< html：file property =upload/> 
< br /`> 
 
< html：submit /> 
< / html：form`> 
  

在动作中从你的表单bean获取文件，并按照如下操作：

  YourForm uploadForm =（YourForm）form; 
 FileOutputStream outputStream = null; 
 FormFile file = null; 
尝试{
 file = uploadForm.getFile（）; 
 String path = getServlet（）。getServletContext（）。getRealPath（）+/+ file.getFileName（）; 
 outputStream = new FileOutputStream（new File（path））; 
 outputStream.write（file.getFileData（））; 
} 
 finally {
 if（outputStream！= null）{
 outputStream.close（）; 
} 
} 
  

I want to upload a file in struts1 application.

Currently the implementation is using File, like this:

<html:file property="upload"/>

But this does not allow to upload file if app is accessed from remote machine as this widget passes only the name of the file instead the whole file.

解决方案

using only <html:file property="upload" /> will not make your application to upload a file.

to support upload functionality,your form must have enctype="multipart/form-data"

<html:form action="fileUploadAction" method="post" enctype="multipart/form-data">
File : <html:file property="upload" /> 
<br/`>

<html:submit />
</html:form`> 

and in action get file from your form bean and manipulate it as follows

YourForm uploadForm = (YourForm) form;
FileOutputStream outputStream = null;
FormFile file = null;
try {
  file = uploadForm.getFile();
  String path = getServlet().getServletContext().getRealPath("")+"/"+file.getFileName();
  outputStream = new FileOutputStream(new File(path));
  outputStream.write(file.getFileData());
}
finally {
  if (outputStream != null) {
    outputStream.close();
  }
}

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