Input « Form « JSP-Servlet Q&A

1. Can the same servlet perform input validation from an html form it displayed?

Is it possible to have the same servlet perform validation? It seems that one might have to utilize some sort of recursion here, but when I type in something in ...

2. How to detect if a form input element of type file is empty

I have some code which reads a file through a form field of type file

 <input type="file" ... />
I want to give the user another option of providing a url to ...

3. HTMl File upload form with additional input fields

I have the following html form...

<head><title>Upload Servlet</title></head>
<body><h2>Upload Servlet</h2>

<form name='uploadparams' enctype='multipart/form-data' action='' method='post'>
    <label>Migrate Options From:
        <select name='migrateFrom'>

4. enctype multipart form-data input-field Access

I have a JSP-Page with a form with enctype="multipart form-data:

<form enctype="multipart/form-data" name="upLoadForm" method="post" action="">
<input type="file" name="userfile_1" id="file_element"/>
<input type="hidden" name="parameterHelper" id="parameterHelper" value="test"/>           ...

5. Help with JSP and Form INput

If after the servlet detects a failure mode you forward back to the original page with the form on it, the request parameters will still be on the request, and you can add attributes which identify the error condition. If you are redirecting back to the form, your servlet can copy the form request parameters and place them on the request. ...

6. Input field and form ?

And, escpecially if you are forwarding back to the original page, it's pretty easy to roll your own. Remember that in the case of a forward, the original request parameters are still there on the request, and you can add as many attributes to the request as you need to tell your page what to do. hth, bear

7. ENCTYPE=multipart/form-data , input type=file

Hi Guys, I want to upload a file to server... i m using

8. Trying to hide input from a select form

This is my first post to this forum.... I'm stuck trying to do something that I think should be relatively simple... I have a page with a select box. When you make a selection from this box the data is populated in a search box. So you can type a query and then use the select box to append to the ...

9. multipart/form-data inputs

Hi all, I am trying to upload a file using a jsp page but I am having a problem with multipart/form-data. It doesn't seem to find some of my input parameters!!


Step 2: Enter description:

11. Using FORM and INPUT

13. How to get the file path from HTML input form in Firefox 3

In IE7 (and probably all famous browsers, including old Firefox 2), if we submit a file like 'C:\folder1\folder2\folder3\filename' it works properly and gives the full path to the file and the filename. In Firefox 3, it returns only 'filename', because of their new 'security feature' to truncate the path, as explained in Firefox bug tracking system ( I have no clue ...

14. form inputs in servlets

15. getParameterValues and TextArea inputs