jquery ajax
$.ajax({
url: url,
dataType: "json",
type: "Post",
async: true,
data: { },
success: function (data) {
},
error: function (xhr, exception) {
var msg = "";
if (xhr.status === 0) {
msg = "Not connect.\n Verify Network." + xhr.responseText;
} else if (xhr.status == 404) {
msg = "Requested page not found. [404]" + xhr.responseText;
} else if (xhr.status == 500) {
msg = "Internal Server Error [500]." + xhr.responseText;
} else if (exception === "parsererror") {
msg = "Requested JSON parse failed.";
} else if (exception === "timeout") {
msg = "Time out error." + xhr.responseText;
} else if (exception === "abort") {
msg = "Ajax request aborted.";
} else {
msg = "Error:" + xhr.status + " " + xhr.responseText;
}
}
});