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Below is the Browser Client Example for above RestFul Service Example,
as we all know we have to use AJAX for this.
<script
type="text/javascript"
language="javascript">
var http_request = false;
function makePOSTRequest(method,url,
parameters) {
http_request =
false;
if(window.XMLHttpRequest) { // Mozilla, Safari,...
http_request = new XMLHttpRequest();
if (http_request.overrideMimeType) {
// Set type accordingly to anticipated content type.
http_request.overrideMimeType('text/xml');
//
http_request.overrideMimeType('text/html');
}
}
else if (window.ActiveXObject) { // IE
try {
http_request = new
ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
http_request = new
ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {}
}
}
if
(!http_request) {
alert('Cannot create XMLHttpRequest object);
return false;
}
http_request.onreadystatechange = alertContents;
//
http_request.open(method, url, true);
if(method=='GET'){
http_request.open(method, url+parameters, true);
http_request.setRequestHeader("Content-type",
"text/xml");
http_request.setRequestHeader("Content-length",
parameters.length);
http_request.setRequestHeader("Connection",
"close");
http_request.send(null);
}
if(method=='POST') {
http_request.open(method, url, true);
http_request.setRequestHeader("Content-type",
"text/xml");
http_request.setRequestHeader("Content-length",
parameters.length);
http_request.setRequestHeader("Connection",
"close");
http_request.send(parameters);
}
if(method=='PUT') {
http_request.open(method, url, true);
http_request.setRequestHeader("Content-type",
"text/xml");
http_request.setRequestHeader("Content-length",
parameters.length);
http_request.setRequestHeader("Connection",
"close");
http_request.send(parameters);
}
if(method=='DELETE') {
http_request.open(method, url+parameters, true);
http_request.setRequestHeader("Content-type",
"text/xml");
http_request.setRequestHeader("Content-length",
parameters.length);
http_request.setRequestHeader("Connection",
"close");
http_request.send(null);
}
}
function alertContents() {
if (http_request.readyState == 4) {
if
(http_request.status == 200) {
alert('Response received from
server:\n'+http_request.responseText);
result = http_request.responseText;
// Turn < and > into < and >
for displaying on the page.
result = result.replace(/\<([^!])/g,
'<$1');
result = result.replace(/([^-])\>/g,
'$1>');
document.getElementById('serverresponse').innerHTML
= result;
} else {
alert('There was a problem with the
request.'
+http_request.responseText +'
'+http_request.status);
document.getElementById('serverresponse').innerHTML
= http_request.responseText;
}
}
}
function
postTheForm() {
var poststr =
document.myform.xmldata.value ;
alert('Sending XML to server:\n'+poststr);
makePOSTRequest('POST',document.myform.endpointURL.value
, poststr);
}
function
getTheForm() {
var getStr =
encodeURI(document.myform.xmldata.value) ;
alert('Sending XML to server:\n'+getStr);
makePOSTRequest('GET',document.myform.endpointURL.value
, getStr);
}
function
putTheForm() {
var poststr =
document.myform.xmldata.value ;
alert('Sending XML to server:\n'+poststr);
makePOSTRequest('PUT',document.myform.endpointURL.value
, poststr);
}
function
deleteTheForm() {
var getStr =
encodeURI(document.myform.xmldata.value) ;
alert('Sending XML to server:\n'+getStr);
makePOSTRequest('DELETE',document.myform.endpointURL.value
, getStr);
}
</script>
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This Portal has More than 500 Java Interview Questions (also could be Considered as Quick Notes) very neatly separated topic by topic with simple diagrams which makes you easily understandable. Importantly these are from our Realtime expericance.