文件上载“multipart / form”异常org.apache.commons.fileupload.FileUploadBase $ InvalidContentTypeException [英] file upload "multipart/form" Exception org.apache.commons.fileupload.FileUploadBase$InvalidContentTypeException

问题描述

我尝试使用Apache Commons上传文件，但抛出了以下异常：
$ b org.apache.commons.fileupload.FileUploadBase $ InvalidContentTypeException：请求不包含一个multipart / form-data或multipart / mixed流，内容类型标头为空

我的html代码是

 < form name =inpaction =upload.jspmethod =getonsubmit =return valid（）; ENCTYPE = 多部分/格式数据 > 
< table align =centercellspacing =2> 
 
< tr>< td>< font size =5color =＃E41B17>选择文件< / font> < / TD> 
< td>< input type =filename =infile>< / td> 
< / tr> 
< tr>< td>< font size =5color =＃E41B17>目标档案名称< / font>< / td> 
< td>< input type =textsize =20name =filename>< / input>< / td> 
< / tr> 
< tr>< / tr> 
< tr>< td colspan =2align =center>< input type = submit value =Upload>< / td>< / tr> 
< / table> 
< br>< / br> 
< center> 
< a href =index.html>< font color =＃E41B17> HOME< / font>< / a> 
< / center> 
< / form> 
  

我的JSP代码是

 <％
 String user =（String）session.getAttribute（uname）; 
 String f = request.getParameter（filename）; 
 
 DiskFileUpload upload = new DiskFileUpload（）; 
 boolean isMultipart = upload.isMultipartContent（request）; 
 
 
 upload.setSizeMax（1048576）; 
 List items = upload.parseRequest（request）; 
 FileItem file =（FileItem）items.get（0）; 
 
 String source = file.getName（）; 
 String delim =\\; 
 String str =; 
文件propfile =新文件（C：\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'）; 
 
 BufferedInputStream propbuf = new BufferedInputStream（new FileInputStream（propfile））; 
 
属性path = new Properties（）; 
 
 path.load（propbuf）; 
 
 String serverlocation = path.getProperty（Server_path）; 
 
 session.setAttribute（storelocation，serverlocation）; 
 
 StringTokenizer st = new StringTokenizer（source，delim）; （）。
 
 while（st.hasMoreTokens（））
 {
 str = st.nextToken（）; 
} 
 
 FileItem name =（FileItem）items.get（1）; 
 
 String target = name.getString（）; 
 
文件outfile =新文件（serverlocation + target）; 
 
 file.write（outfile）; 
 
 session.setAttribute（filename，target）; 
 
％> 
  

解决方案

表单必须是method =POST / p>

I tried to use the file upload using Apache Commons but the following exception thrown

org.apache.commons.fileupload.FileUploadBase$InvalidContentTypeException: the request doesn't contain a multipart/form-data or multipart/mixed stream, content type header is null

My html code is

<form  name="inp" action="upload.jsp"  method="get" onsubmit="return valid();" enctype="multipart/form-data">
<table align="center" cellspacing="2">

  <tr><td><font size="5" color="#E41B17">Select File</font> </td>
<td><input type="file" name="infile"></td>
</tr>
<tr><td><font size="5" color="#E41B17">Target File Name</font></td>
<td><input type="text" size="20" name="filename"></input></td>
</tr>
<tr></tr>
<tr><td colspan="2" align="center"><input type=submit value="Upload"  ></td></tr>
</table>
<br></br>
<center>
<a href="index.html"><font color="#E41B17">HOME</font></a>
</center>
</form>

My JSP code is

   <% 
   String user = (String)session.getAttribute("uname");
   String f = request.getParameter("filename");

   DiskFileUpload upload = new DiskFileUpload();         
   boolean isMultipart=upload.isMultipartContent(request);


   upload.setSizeMax(1048576);     
   List items = upload.parseRequest(request);  
   FileItem  file = (FileItem) items.get(0); 

   String source = file.getName();
      String delim="\\";
   String str="";
   File propfile=new File("C:\\eclipse_practise\\fileupload\\WebContent\\path.properties");

   BufferedInputStream propbuf=new BufferedInputStream(new FileInputStream(propfile));

   Properties path=new Properties();

   path.load(propbuf);

   String serverlocation=path.getProperty("Server_path");

   session.setAttribute("storelocation",serverlocation);

   StringTokenizer st = new StringTokenizer(source,delim);

   while(st.hasMoreTokens())
   {                        
       str=st.nextToken();
   }

   FileItem  name = (FileItem) items.get(1);

   String  target = name.getString();

   File outfile = new File(serverlocation+target);

    file.write(outfile); 

      session.setAttribute("filename",target);

   %>

解决方案

The form has to be method="POST"

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