HTTP Status Code from URL in Javascript

问题

I'm trying to find a function that return HTTP Status Code from an URL, and then "make something" based on the returned statuses (404, 416, 200 etc...)

Can someone help me? I've tried the other functions posted here on StackOverflow but anyone was usefull for my purpose.

I need to integrate this function inside my PlayFramework web-app.

Thanks a lot

回答1:

Can you try the following ..?

function getStatus(url) {
        var request = new XMLHttpRequest();
    request.onreadystatechange = function() {
        if (request.readyState === 4){
            request.status;//this contains the status code
        }
    };
request.open("GET", url , true);
request.send(null);
}

来源：https://stackoverflow.com/questions/29097819/http-status-code-from-url-in-javascript