如何上傳文件並使用POST在Java Web應用程序中發送文本平面信息

我可以在Java Web應用程序中上傳文件，但是，如果我想發送信息並上傳文件，則系統上載文件並將信息視爲空！如何上傳文件並使用POST在Java Web應用程序中發送文本平面信息

我的代碼：

的Servlet：

protected void doPost(HttpServletRequest request, HttpServletResponse response) 
    throws ServletException, IOException { 
    if (request.getParameter("information") == null) 
     System.out.println("information is null"); 
    Helper helper = new Helper(); 
    String url = "C:\\Users\\.....<private url>"; 
    DiskFileItemFactory factory = new DiskFileItemFactory(); 
    factory.setSizeThreshold(1024); 
    factory.setRepository(new File(url)); 
    ServletFileUpload upload = new ServletFileUpload(factory); 
    try{ 
     List<FileItem> partes = upload.parseRequest(request); 
     for(FileItem items: partes){ 
      File file = new File(url,items.getName()); 
      items.write(file); 
     request.getRequestDispatcher("view/upfile/upfile.jsp").forward(request, response); 
     return; 
     } 
    }catch(Exception e){ 
      request.getSession().setAttribute("error", e.toString() + ": " + url); 
      request.getRequestDispatcher("view/excepciones/message.jsp").forward(request, response); 
     return; 
    }

}

文件JSP：

<html> 
<head> 
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
    <title>JSP Page</title> 
</head> 
<body> 
    <h1>Subir el archivo</h1> 
    <form action = "<%= request.getContextPath() %>/UpFilesController" method="post" enctype = "multipart/form-data"> 
     <input type = "file" name = "file"/> 
     <input type = "text" name = "information"/> 
     <input type = "submit" name = "action4" value = "Subir Archivo"/> 
    </form> 

</body>

利用GlassFish服務器：信息爲空

來源

2016-05-13 Juan Camacho

這個問題已經在這裏找到答案：http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet –