JSP - upload de Fichier avec Apache Commons

Pourquoi mon fichier-code de téléchargement ne fonctionne pas?

Je suis à l'aide de "commons-fileupload-1.1.1.jar".

Aussi je vois un barré à la 2e Ligne sur "isMultipartContent" dans NetBeans 6.1.

    //Check that we have a file upload request  
>>>>    boolean isMultipart = FileUpload.isMultipartContent(request);  

//Create variables for path, filename and extension  
appPath = application.getRealPath("\\");

//Create a factory for disk-based file items  
FileItemFactory factory = new DiskFileItemFactory();  

//Create a new file upload handler  
ServletFileUpload upload = new ServletFileUpload(factory);  

//Parse the request and Extract request items  
>>>>>    List items = upload.parseRequest(request);

//create an Iterator to iterate through request items  
Iterator iter = items.iterator();

//Form fields
//out.println("<br><br>While loop started");

while (iter.hasNext())
{  
  FileItem item = (FileItem) iter.next();

  if(item.isFormField())
  {
    String name = item.getFieldName();  
    String value = item.getString();  

    if(name.equals("txtUsername")) 
    {
      _USERNAME_ = value;

      Class.forName("org.gjt.mm.mysql.Driver");

      try
      {
        connection = DriverManager.getConnection("jdbc:mysql://localhost/ict");
        statement = connection.createStatement();
        recordset = statement.executeQuery("SELECT * FROM registered_students WHERE username=\'" + _USERNAME_ + "\'");

        while(recordset.next())
        {
          roll = recordset.getString(4);

          _ROLL_ = roll;
        }

        recordset.close();
        recordset=null;

        statement.close();
        statement=null;
      }
      finally
      {
        if(connection!=null)
        {
          connection.close();
        }
      }
    }
  }
}

Et j'obtiens ce message:

org.apache.jasper.JasperException: An exception occurred processing JSP page /Process_FileUpload.jsp at line 75
73: 
74:         //Parse the request and Extract request items  
75:         List items = upload.parseRequest(request);  
76:         
77: 
78:         //create an Iterator to iterate through request items  
79:         Iterator iter = items.iterator();
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
root cause
javax.servlet.ServletException: java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:850)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:779)
org.apache.jsp.Process_005fFileUpload_jsp._jspService(Process_005fFileUpload_jsp.java:546)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
root cause
java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream
org.apache.commons.fileupload.disk.DiskFileItemFactory.createItem(DiskFileItemFactory.java:179)
org.apache.commons.fileupload.FileUploadBase.createItem(FileUploadBase.java:500)
org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:367)
org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:116)
org.apache.jsp.Process_005fFileUpload_jsp._jspService(Process_005fFileUpload_jsp.java:138)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.16 logs.

OriginalL'auteur user366312 | 2009-07-17