Pass XML string from Javascript to JSP

[dmckeon]

I have a Javascript that is building an XML string and then invokes a
JSP. I need to pass the XML string from the Javascript to the JSP.
What's the best way to do that? I am new to this technology and really
trying to learn.

Thanks,
Dan

[Martin Honnen]

dm*****@ameritas.com wrote:

I have a Javascript that is building an XML string and then invokes a
JSP. I need to pass the XML string from the Javascript to the JSP.
What's the best way to do that?

It depends on how you want/can process the XML in the JSP but usually
doing a HTTP POST request with
Content-Type: application/xml
and the XML in the HTTP request body is a good idea:

var httpRequest = null;
if (typeof XMLHttpRequest != 'undefined') {
httpRequest = new XMLHttpRequest();
}
else if (typeof ActiveXObject != 'undefined') {
try {
httpRequest = new ActiveXObject('Microsoft.XMLHTTP');
}
catch (e) {}
}
if (httpRequest != null) {
httpRequest.open('POST', 'whatever.jsp', true);
httpRequest.setRequestHeader('Content-Type', 'application/xml');
httpRequest.onreadystatechange = function () {
if (httpRequest.readyState == 4) {
//deal with response here
}
};
httpRequest.send('<example>Kibology for all</example>');
}

--

Martin Honnen
http://JavaScript.FAQTs.com/

[dmckeon]

Martin Honnen wrote:

dm*****@ameritas.com wrote:

I have a Javascript that is building an XML string and then invokes a
JSP. I need to pass the XML string from the Javascript to the JSP.
What's the best way to do that?

It depends on how you want/can process the XML in the JSP but usually
doing a HTTP POST request with
Content-Type: application/xml
and the XML in the HTTP request body is a good idea:

var httpRequest = null;
if (typeof XMLHttpRequest != 'undefined') {
httpRequest = new XMLHttpRequest();
}
else if (typeof ActiveXObject != 'undefined') {
try {
httpRequest = new ActiveXObject('Microsoft.XMLHTTP');
}
catch (e) {}
}
if (httpRequest != null) {
httpRequest.open('POST', 'whatever.jsp', true);
httpRequest.setRequestHeader('Content-Type', 'application/xml');
httpRequest.onreadystatechange = function () {
if (httpRequest.readyState == 4) {
//deal with response here
}
};
httpRequest.send('<example>Kibology for all</example>');
}

--

Martin Honnen
http://JavaScript.FAQTs.com/

Thanks so much for the info and please excuse my lack of experience
with this. Do you know what I would do in the JSP to get the
information that is set in the Javascript code?

[Martin Honnen]

dm*****@ameritas.com wrote:

Do you know what I would do in the JSP to get the
information that is set in the Javascript code?

You need to read in the body of the HTTP request (with an XML parser if
you want to process the XML). I don't do JSP so I can't give you code
details.

--

Martin Honnen
http://JavaScript.FAQTs.com/