URL formation for Ajax request in struts.

[fierof2]

Hi all

I am building an struts application and using ajax also. I have observed that request url for making ajax request is slightly different.

for example in a normal jsp application the url will be like below

var url = "/authenticate"

but is struts its

var url = "TestCaseRepo/authenticate.do"

I think this is not the right way since we are hard coding the root directory path. If tomorrrow if i deploy in another folder instead of TestCaseRepo then i have to change the url in all the locations in my struts application which is not really good.

I would great if someone could tell me how to resolve this issue, so that my application work if deployed on any folder.

[jogep]

TestCaseRepo is your Context Root you can make this generic like this.

var url = {pageContext.request.contextPath}/authenticate

If you use Struts2 i recommend to use the <s:url ../> tag to generate the right URL inside your application.

[fierof2]

I am using Struts 1.3. I am making an ajax request. Is this
pageContext.request.contextPath possible from ajax. does javascript knows pageContext ?.

I would also like to know why .do is required in the url.

[jogep]

when you render your javascript in an JSP the pageContext should also be available.

[fierof2]

Thanks a lot jogep. I have learn t something from you.

I have also found another solution the below code also works

var url = "authenticate.do";

The only thing i dont understand is you do we need to give .do string. if i dont provide it, it doesnt work.

[jogep]

take a look in your web.xml!

There is a mapping for all request with suffix *.do to your Struts Servlet.
At this point you can also rename it to another suffix.

[fierof2]

Thanks Jogep.

I can understand this but when i submit the form

<html:form action="/login" method="post">

using the above form, the form gets submitted perfectly. My question is
in the above action attribute i have not mentioned action="/login.do".

I would like to know how is the form getting submitted without the .do extension ?.

[jogep]

with <html:form action="/login" method="post"> you use a struts tag.
I guess it renders you a <form action="login.do" method="post"> html tag.

I'm not sure but I think you can change the suffix *.do in your web.xml.

[fierof2]

Thanks a lot jogep