URL formation for Ajax request in struts.

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.

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

Code:

---

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.

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.

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

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.

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.

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 ?.

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.

Thanks a lot jogep