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Issue with the Browse button(<input type="file">)

Aditya Sirohi

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posted 13 years ago

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Hi,

This is my first post regarding JSP issue. I am trying the following scenario:-
1. User can enter the path to the a file using the <input type="file"> in code.
2. After hitting the Submit button, user can see the content of his file on the web page.

So i have written two JSP files for it, i.e. index.jsp which looks like

Content of display.jsp looks like

But the issue is when i hit the Submit button it says "File not found" what can be the issue?. Is there any way i can find the value of "inputFileElement" in the display.jsp file? Also if in the index.jsp file if i change the input type="text", it works fine, but i want a browse button there.

Thanks
Adi

Soumyajit Hazra

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posted 13 years ago

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Buddy your code is working fine in my system. I have not changed a single line of code. Try printing the filePath variable and see what path it is showing.

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Anbarasu Aladiyan

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posted 13 years ago

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Form tag needs to have ENCTYPE="multipart/form-data" attribute

Anbarasu Aladiyan

Aditya Sirohi

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posted 13 years ago

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Hello Soumyajit/Anbarasu,

First question, it might sound dumb:- How do i print the value of of filePath variable? I did the following changes to display.jsp to print its value, but cant see it,

@Anbarasu - Adding ENCTYPE="multipart/form-data" attribute to form tag gives Null pointer exception.

Thanks
Adi

Bear Bibeault

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posted 13 years ago

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Soumyajit Hazra wrote:Buddy your code is working fine in my system.

But it will not work in general. This code is doing it wrong and will only work when the browser is being run on the server.

You need, as has already been pointed out, to use a multi-part form, and to read the file from the request not the file system. The server has no access to the client's file system. Ever.

You should read the FAQ page on file uploading.

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Han Jie

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posted 13 years ago

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Bear Bibeault wrote:
But it will not work in general. This code is doing it wrong and will only work when the browser is being run on the server.

The server has no access to the client's file system. Ever.

I started a bit lost, because I run the code on my pc on which the browse and server are installed together and do not realize the hidden problem.

It indicates that the differences between browser and server are not very clear in my mind.

After Bear said, i suddenly realize it more clearly.

So, thanks verycd much.

Regards

HanJie

Ravi Kiran Va

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posted 13 years ago

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At Bear :

This code will only work when the browser is being run on the server.

What does the above mean exactly ?? How can a browser run on the server ??

Waiting for your reply . Thanks .

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Han Jie

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posted 13 years ago

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Ravi Kiran Pattu wrote:At Bear :

This code will only work when the browser is being run on the server.

What does the above mean exactly ?? How can a browser run on the server ??

Waiting for your reply . Thanks .

hi Ravi

In my opinion, it means that if the browser and server are not on one machine together, the server only get and process the file you need through it's own filesystem.

But actually, there is not the file you required on the server but only on the browser.

So in this situation, the codes in "display.jsp" work wrong absolutely.

The understanding of mine is all above and what's yours?

Bear Bibeault

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Ravi Kiran Pattu wrote:How can a browser run on the server ??

By clicking the little icon that starts the browser.

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