Getting Query String Params From A Post

[Luke Shannon]

Is it not possible to get params from the query string using a doPost?

I have the following URL:

<a href="https://www.findworks.com/findworks/servlet/SaleUploadSelection.do?HiddenSampleSessionId=123456789abcdef&auctionID=489&systemFolder=test&date=2005-10-01&contactID=413" target="_blank" rel="nofollow">https://www.findworks.com/findworks/servlet/SaleUploadSelection.do?HiddenSampleSessionId=123456789abcdef&auctionID=489&systemFolder=test&date=2005-10-01&contactID=413</a>

I am not able to get any of the parameters in my servlet. I don't know why.

Here is the doPost:

protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
String picDir = ApplicationInfo.getInstance().getDevelopmentDirectory();
String systemFolder = new String();
int auctionID = 0;
String date = new String();
ArrayList uploadedPics = new ArrayList();
ArrayList selectedPics = new ArrayList();
try {
// file limit size of five megabytes
MultipartParser parser = new MultipartParser(request,
5 * 1024 * 1024);
Part _part = null;
while ((_part = parser.readNextPart()) != null) {
if (_part.isFile()) {
FilePart picFull = (FilePart) _part;
String fileName = picFull.getFileName();
ImageUploader up = new ImageUploader();
if (fileName != null) {
ImageUploader upload = new ImageUploader();
uploadedPics.add(upload.uploadToServer(fileName, systemFolder, picDir, picFull, date));
}
 
} else if (_part.isParam()) {
ParamPart param = (ParamPart) _part;
if (param.getName().equals("systemFolder")) {
systemFolder = URLDecoder.decode(param.getStringValue(), "UTF-8");
myLogger.debug(SaleUploadSelection.class.getName() + " "
+ " Got the system folder " + systemFolder);
} 
else if (param.getName().equals("auctionID")) {
auctionID = Integer.parseInt(URLDecoder.decode(param.getStringValue(), "UTF-8"));
myLogger.debug(SaleUploadSelection.class.getName() + " "
+ " Got the auctionID " + auctionID);
}
else if (param.getName().equals("date")) {
date = URLDecoder.decode(param.getStringValue(), "UTF-8");
myLogger.debug(SaleUploadSelection.class.getName() + " "
+ " Got the date " + date);
}
}
}// end while
ImageOperations imageOp = new ImageOperations();
if (uploadedPics.size() > 0)
imageOp.InsertNewSalesPic(uploadedPics, auctionID);
} catch (Exception e) {
myLogger.error(SaleUploadSelection.class.getName() + " "
+ "An error occured. Uploading the pics and thumbnails. "
+ e);
}
}

Any ideas?

Thanks,

Luke

[Luke Shannon]

The Part object is an abstract upload part which represents an INPUT form element in a multipart/form-data form submission.

Parameters in the Query String are not part of an INPUT in the form.

Could this be the problem?


http://www.servlets.com/cos/javadoc/com/oreilly/servlet/multipart/Part.html
[ September 16, 2005: Message edited by: Luke Shannon ]

[Dustinn Yourstone]

Yes, check the type of data you are sending, but also you always want to try to use the get for this so you don't haveto worry about this problem.

[Luke Shannon]

I need to do a Post because some of the data coming through the form is uploaded files.

This is why I am using oreilly.servlet.multipart.MultipartParser to process the results from the post.

Thanks,

Luke

[Luke Shannon]

I just added some debugging statements to check what parameters were coming in from the form.

It is not even receiving the query string parameters.

Not sure why not?

Code Change:

else if (_part.isParam()) {
ParamPart param = (ParamPart) _part;
myLogger.debug(SaleUploadSelection.class.getName() + " Param is from the form: " + param.getName());
if (param.getName().equals("systemFolder")) {
systemFolder = URLDecoder.decode(param.getStringValue(), "UTF-8");
myLogger.debug(SaleUploadSelection.class.getName() + " "
+ " Got the system folder " + systemFolder);
} 
else if (param.getName().equals("auctionID")) {
auctionID = Integer.parseInt(URLDecoder.decode(param.getStringValue(), "UTF-8"));
myLogger.debug(SaleUploadSelection.class.getName() + " "
+ " Got the auctionID " + auctionID);
}
else if (param.getName().equals("date")) {
date = URLDecoder.decode(param.getStringValue(), "UTF-8");
myLogger.debug(SaleUploadSelection.class.getName() + " "
+ " Got the date " + date);
}
}

Debugging Result:

23686 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:51 servlet.upLoad.SaleUploadSelection Getting a request to upload pictures.
23711 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:58 servlet.upLoad.SaleUploadSelection Looking at a param
23713 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:71 servlet.upLoad.SaleUploadSelection Param is from the form: uploadedFiles0_absolutePath
23715 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:58 servlet.upLoad.SaleUploadSelection Looking at a param
23717 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:71 servlet.upLoad.SaleUploadSelection Param is from the form: uploadedFiles0_relativePath
23718 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:58 servlet.upLoad.SaleUploadSelection Looking at a param
23720 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:71 servlet.upLoad.SaleUploadSelection Param is from the form: uploadedFiles0_lastModified
23720 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:58 servlet.upLoad.SaleUploadSelection Looking at a param
23721 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:71 servlet.upLoad.SaleUploadSelection Param is from the form: uploadedFiles0_md5hash
23739 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:58 servlet.upLoad.SaleUploadSelection Looking at a param
23753 TP-Processor1 DEBUG servlet.upLoad.SaleUploadSelection SaleUploadSelection.java:60 servlet.upLoad.SaleUploadSelection Param is a file

[Vikas Bhatia]

Originally posted by Luke Shannon:
Is it not possible to get params from the query string using a doPost?

I have the following URL:

<a href="https://www.findworks.com/findworks/servlet/SaleUploadSelection.do?HiddenSampleSessionId=123456789abcdef&auctionID=489&systemFolder=test&date=2005-10-01&contactID=413" target="_blank" rel="nofollow">https://www.findworks.com/findworks/servlet/SaleUploadSelection.do?HiddenSampleSessionId=123456789abcdef&auctionID=489&systemFolder=test&date=2005-10-01&contactID=413</a>

I am not able to get any of the parameters in my servlet. I don't know why.

Here is the doPost:

protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
String picDir = ApplicationInfo.getInstance().getDevelopmentDirectory();
String systemFolder = new String();
int auctionID = 0;
String date = new String();
ArrayList uploadedPics = new ArrayList();
ArrayList selectedPics = new ArrayList();
try {
// file limit size of five megabytes
MultipartParser parser = new MultipartParser(request,
5 * 1024 * 1024);
Part _part = null;
while ((_part = parser.readNextPart()) != null) {
if (_part.isFile()) {
FilePart picFull = (FilePart) _part;
String fileName = picFull.getFileName();
ImageUploader up = new ImageUploader();
if (fileName != null) {
ImageUploader upload = new ImageUploader();
uploadedPics.add(upload.uploadToServer(fileName, systemFolder, picDir, picFull, date));
}
 
} else if (_part.isParam()) {
ParamPart param = (ParamPart) _part;
if (param.getName().equals("systemFolder")) {
systemFolder = URLDecoder.decode(param.getStringValue(), "UTF-8");
myLogger.debug(SaleUploadSelection.class.getName() + " "
+ " Got the system folder " + systemFolder);
} 
else if (param.getName().equals("auctionID")) {
auctionID = Integer.parseInt(URLDecoder.decode(param.getStringValue(), "UTF-8"));
myLogger.debug(SaleUploadSelection.class.getName() + " "
+ " Got the auctionID " + auctionID);
}
else if (param.getName().equals("date")) {
date = URLDecoder.decode(param.getStringValue(), "UTF-8");
myLogger.debug(SaleUploadSelection.class.getName() + " "
+ " Got the date " + date);
}
}
}// end while
ImageOperations imageOp = new ImageOperations();
if (uploadedPics.size() > 0)
imageOp.InsertNewSalesPic(uploadedPics, auctionID);
} catch (Exception e) {
myLogger.error(SaleUploadSelection.class.getName() + " "
+ "An error occured. Uploading the pics and thumbnails. "
+ e);
}
}

Any ideas?

Thanks,

Luke

You already might have tried it but have to tried to add the following line to your doget?

doPost(request,response);
I think the default behavior of the containter is to see a request as a get, the moment it sees some parameter being passed back to the servlet. Worth a try??