how to get servlet response in javascript?

Question

how to get servlet response message in javascript variable is there any possible way to get response message in java script?

Html:

<form method="post" id="importForm">
Name<input type="text" name="name"/>
<input type="submit" onclick="importScenarioFromServer();">
</form>

javascript:

function importScenarioFromServer(){
    var result = document.forms["importForm"].submit();
}

servlet:

int numberOfRecs = db.setDBValue(dMap);
if (numberOfRecs == 1) {
String result = "success";
response.getWriter().print(result);
}

Use ajax if you don't want to refresh the page, for this [JQuery#ajax](http://api.jquery.com/jquery.ajax/) will come in handy. — , Oct 18 '14 at 10:04
@arvind i'm sending multipart request but, ajax didn't support multipart requst. — javasundaram, Oct 18 '14 at 10:06
See this: http://stackoverflow.com/questions/12831680/jquery-ajax-multipart-form-data-not-sending-data — Amy, Oct 18 '14 at 10:20
http://stackoverflow.com/questions/17366903/form-submission-using-ajax-and-handling-response-in-wordpress-website see this you will get some idea — Amy, Oct 18 '14 at 10:38
See this: http://stackoverflow.com/questions/374644/how-do-i-capture-response-of-form-submit — Amy, Oct 18 '14 at 10:49

score 1 · Accepted Answer · answered May 29 '15 at 05:12

This can be implemented using ajax either in javascript or by using jquery. we can serialise form in ajax hit and then can get response data from servlet in success event callback function. below is example...

function getData()
{
var client;
var data;
var url_action="/temp/getData";
if(window.XMLHttpRequest)
{
    client=new XMLHttpRequest();
}
else
{
    client=new ActiveXObject("Microsoft.XMLHTTP");
}
client.onreadystatechange=function()
{
    if (client.readyState==4 && client.status==200)
    {
         document.getElementById("response").innerHTML=client.responseText; 
    }
};
data="name="+document.getElementById("name").value+"&file="+document.getElementById("filname").value;
client.open("POST",url_action,true);
client.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
client.send(data);
}


Servlet post method

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // TODO Auto-generated method stub
    PrintWriter out=response.getWriter();
    log.info("Good");
    out.println("Good to go");
}

how to get servlet response in javascript?

1 Answers1