JSP Tutorials - Herong's Tutorial Examples - Version 4.03, by Dr. Herong Yang
Code 1 - Display Options - UploadInit.html
This section provides a tutorial example of a static HTML page, UploadInit.html, presenting different upload options for the user to try different ways to upload a file
Now we know how to write a HTML page for uploading files. What's next is to know how to handle the uploaded files embedded in the HTTP request on the Web server side.
Unfortunately, normal Web servers do not offer any support to handle the uploaded files. JSP also does not offer any support to handle the uploaded files automatically. We need additional special programs on the Web server side to do this job.
Of course, there are a lot existing programs available on the Internet that can be installed on the Web server to handle uploaded files. But writing such a program yourself is also not very hard. I am planning to write following JSP pages to create a file upload test application:
As Part 1 of the file upload test, here is my UploadInit.html page, which will let you change the upload settings to see how your browser is submitting different types of input fields with different encryption types:
<?xml version="1.0"?> <html><body> <!-- UploadInit.html - Copyright (c) 2012, HerongYang.com, All Rights Reserved. --> <b>File Upload Test Settings:</b><br/> <form action="UploadForm.jspx" method="get"> File upload handler:<select name="action"> <option>UploadDump.jspx</option> <option>UploadSave.jspx</option> </select><br/> Submit method:<select name="method"> <option>get</option> <option>post</option> </select><br/> Encryption type:<select name="enctype"> <option value="x-www-form-urlencoded"> application/x-www-form-urlencoded</option> <option value="form-data">multipart/form-data</option> </select><br/> <input type="submit" name="submit" value="Submit"><br/> </form> </body></html>
Last update: 2012.
Table of Contents
JSP (JavaServer Pages) Overview
Tomcat 7 Installation on Windows Systems
Syntax of JSP Pages and JSP Documents
JavaBean Objects and "useBean" Action Elements
Managing HTTP Response Header Lines
Non-ASCII Characters Support in JSP Pages
Overview of JSTL (JSP Standard Tag Libraries)
Multiple Tags Working Together
RFC 1867 - Form-based File Upload in HTML
►Code 1 - Display Options - UploadInit.html
Code 2 - Display Form - UploadForm.jspx
Code 3 - Dump File - UploadDump.jspx
Test 2 - POST Method - Successful
Code 4 - Save File - UploadSave.jspx