I am trying to write and image file in my server hosting directory, but it is throwing exception, same code works fine when i run it on my laptop locally, it uploads the image on my laptop windows directory but throws an exception when i upload my application on server and tries to write image file on the server directory. Following is the exception it throws...Please guide me what i am doing wrong...Please Note that I am using Apache FileUpload to write image file on the server directory

HTTP Status 500 -

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type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

java.security.AccessControlException: access denied (java.io.FilePermission /web/tomcat/temp/upload__10c3edf7_1094f5d6d15__7ffe_00000002.tmp write)
java.security.AccessControlContext.checkPermission (AccessControlContext.java:264)
java.security.AccessController.checkPermission(Acc essController.java:427)
java.lang.SecurityManager.checkPermission(Security Manager.java:532)
java.lang.SecurityManager.checkWrite(SecurityManag er.java:962)
java.io.FileOutputStream.<init>(FileOutputStream.java:169)
java.io.FileOutputStream.<init>(FileOutputStream.java:131)
org.apache.commons.io.output.DeferredFileOutputStr eam.thresholdReached(DeferredFileOutputStream.java :122)
org.apache.commons.io.output.ThresholdingOutputStr eam.checkThreshold(ThresholdingOutputStream.java:2 21)
org.apache.commons.io.output.ThresholdingOutputStr eam.write(ThresholdingOutputStream.java:128)
org.apache.commons.fileupload.MultipartStream.read BodyData(MultipartStream.java:520)
org.apache.commons.fileupload.FileUploadBase.parse Request(FileUploadBase.java:371)
org.apache.commons.fileupload.servlet.ServletFileU pload.parseRequest(ServletFileUpload.java:116)
com.example.model.ServletController.processRequest (ServletController.java:135)
com.example.model.ServletController.doPost(Servlet Controller.java:1597)
javax.servlet.http.HttpServlet.service(HttpServlet .java:709)
javax.servlet.http.HttpServlet.service(HttpServlet .java:802)
sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
org.apache.catalina.security.SecurityUtil$1.run(Se curityUtil.java:239)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject .java:517)
org.apache.catalina.security.SecurityUtil.execute( SecurityUtil.java:266)
org.apache.catalina.security.SecurityUtil.doAsPriv ilege(SecurityUtil.java:157)


note The full stack trace of the root cause is available in the Apache Tomcat/5.0.27 logs.




The following is my code for picture uploading
==================================

//================================================== =============================
// Check that we have a file upload request

boolean isMultipart = FileUpload.isMultipartContent(request);

if ( isMultipart == true) {

String fieldname = null;
String fieldvalue = null;
String fileName = null;


DiskFileItemFactory factory = new DiskFileItemFactory();
// Configure the factory here, if desired.
ServletFileUpload diskFileUpload = new ServletFileUpload(factory);
// Configure the uploader here, if desired.


List fileItemsList = null;
try {
// diskFileUpload.setSizeThreshold(40960);
// diskFileUpload.setSizeMax(81920);

fileItemsList = diskFileUpload.parseRequest(request);
} catch (FileUploadException ex) { ex.printStackTrace(); }

String optionalFileName = "";
FileItem fileItem = null;
col_name_coma = "";
col_value_coma = "";
name_value = "";

Iterator it = fileItemsList.iterator();
while (it.hasNext()){
FileItem fileItemTemp = (FileItem)it.next();

// fieldname = fileItemTemp.getFieldName();
// fieldvalue = fileItemTemp.getString();


if (fileItemTemp.isFormField()){
fieldname = fileItemTemp.getFieldName();
fieldvalue = fileItemTemp.getString();
if (fieldname.equals("profile_id")) {
profile_id = fieldvalue;
col_name_coma = col_name_coma + fieldname +",";
col_value_coma = col_value_coma + "'"+fieldvalue+"','";
}
if (fieldname.equals("Router")) { router = fieldvalue; }
if (fieldname.equals("DisplayInputForm")) { display_input_form = fieldvalue; }
if (fieldname.equals("UserType")) { user_type = fieldvalue; }
if (fieldname.equals("display_option")) {
display_option = fieldvalue;
col_name_coma = col_name_coma + fieldname +",";
col_value_coma = col_value_coma + fieldvalue+"','";
name_value = name_value + "display_option = "+"'"+display_option+"'";
}

if (fileItemTemp.getFieldName().equals("filename")) optionalFileName = fileItemTemp.getString();
}
else fileItem = fileItemTemp;

if (fileItem!=null){ // label-A

fileName = fileItem.getName();

// Uploaded File Info
// Content type: <%= fileItem.getContentType() %><br/>
// Field name: <%= fileItem.getFieldName() %><br/>
// File name: <%= fileName %><br/>
// File size: <%= fileItem.getSize() %><br/><br/>


/* Save the uploaded file if its size is greater than 0. */
if (fileItem.getSize() > 0){ // label-B
if (optionalFileName.trim().equals("")) {
fileName = (new File(fileName)).getName();
// File saveTo = new File(fileName);
fileName = profile_id + "-"+ fileName;
String picture_no = fileItem.getFieldName();
col_name_coma = col_name_coma + picture_no +",";
// col_value_coma = col_value_coma + saveTo +"','";
// name_value = name_value +" , "+picture_no+" = "+"'"+saveTo+"'";
col_value_coma = col_value_coma + fileName +"','";
name_value = name_value +" , "+picture_no+" = "+"'"+fileName+"'";
} else {
fileName = profile_id + "-"+ optionalFileName;
String picture_no = fileItem.getFieldName();
col_name_coma = col_name_coma + picture_no +",";
col_value_coma = col_value_coma + fileName +"','";
name_value = name_value +" , "+picture_no+" = "+"'"+fileName+"'";
}

String dirName = "/images/member/";

File saveTo = new File(dirName + fileName);
try {
fileItem.write(saveTo);

//<b>The uploaded file has been saved successfully.</b>
}
catch (Exception e){
e.printStackTrace() ;
// request.setAttribute("tran_result","File Not Loaded");
// request.setAttribute("page_type","any");
// request.setAttribute("page_name","TransactionResult.jsp");
//
// RequestDispatcher view = request.getRequestDispatcher("main_page.jsp");
// response.setContentType("text/html;charset=UTF-8");
// view.forward(request, response);
// return;
// <b>An error occurred when we tried to save the uploaded file.</b>
} // end-catch
save_database(col_name_coma,col_value_coma);
request.setAttribute("tran_result","N-File uploaded Sucessfully");
request.setAttribute("page_type","any");
request.setAttribute("page_name","TransactionResult.jsp");
RequestDispatcher view = request.getRequestDispatcher("main_page.jsp");
response.setContentType("text/html;charset=UTF-8");
view.forward(request, response);
return;
} // end-label-B
} // end-label-A
} // end-while
} // end multi-part = true

//==============================P I C T U R E - UPLOADING ================================================== =

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