CODEWITHSUNDEEP
javajspurlservlets
sujit
sujit

Reputation: 261

url of webpage in jsp

I just need little help, that is: many times i have seen http://www.xyz.com/index.jsp?etetet%rr^_frfwrw..... I just wanted to know that what is this question mark ?etetet%....coming after index.jsp and why this is coming after index.jsp? Can somebody please explain what is the reason behind this?

I am also running my application like this: http://localhost:8080/myproject/index.jsp

How can i make my url to be looked like the above one i.e. http://localhost:8080/myproject/index.jsp?..eeqwe_%cdc...

I am using jsp, servlet and tomcat server.Any help is much appreciated.

Upvotes: 0

Views: 276

Answers (2)

omartin
omartin

Reputation: 135

This is called in java a "query string" All elements passed after the ? character can be retrieve from request.getQueryString()

for example

test.jsp?myparam

the call to request.getQueryString() will return you "myparam"

Normally, you pass some parameters using key=value pattern separating by & character in order to use a parser to understand several parameters for example

test.jsp?param1=value1&param2=value2

Be carefull, the length of the URL is limited to 255 characters

Upvotes: 2

maksimov
maksimov

Reputation: 5811

This is what is called URL query, or URL parameters. These parameters are accessible in your HttpRequest object like this:

String name = (String) request.getParameter("name");

For a URL like blah?name=Donkey, the String variable name will receive a 'Donkey'.

Unlike your example, the parameters commonly come as key-value pairs, ie. = and when more than one parameter is passed, the pairs are divided by ampersands:

blah?name=Donkey&quantity=10

Wikipedia: http://en.wikipedia.org/wiki/Query_string

Upvotes: 1

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