Normal one Normal one - 2 months ago 28
Ajax Question

Pass array to ajax request in $.ajax() to controller Spring mvc

I want to pass an array of strings as well as a string variable to the controller but it says parameter not present.

here is my javascript

function updateIssueHandler() {
var keyArray = [];
bootstrap_alert_hide('#form_errors');// cleans previous errors
$('input:checkbox[name=key_checkbox]:checked').each(function() {
keyArray.push($(this).val())
});
if (keyArray.length == 0) {
var errorMsg = document
.getElementById("js.i18nMessage.emptyUpdateTickets.id").value;
bootstrap_alert('#form_errors', errorMsg)
}
var labels = document.getElementById('labelsTextBox').value;
var b = {
"lab" : labels,
"keys": keyArray
};
//console.log(addl);
console.log(keyArray);
$.ajax({
url : '/jirabatchapp/JqlUpdate/',
data : b,
type : 'POST',
success : function(data) {
window.alert("done");
},
error : function(e) {
alert(JSON.stringify(e));
}
});
}


Controller:

@Controller
public class UpdateLabelController {

@RequestMapping(value = "/JqlUpdate", method = RequestMethod.POST)
public String updateIssue(@RequestParam(value = "lab") String a,@RequestParam(value = "keys") String k ) {

System.out.println(a);
System.out.println(k);
System.out.println("finally!");
return "success";
}
}


I get an error saying HTTP request error 400 Required string parameter lab not present.

What am i doing wrong? if I only pass labs, then it works, but if i want to pass both parameters it is throwing me this error.

Answer

change

var b = {
    "lab" : labels
    "keys": keyArray
};

to

var b = {
    "lab" : labels,
    "keys": keyArray
};