Question

我需要使用POST方法发送数据的功能，并在POST发送后，刷新页面。但每次它询问用户＆＃34;警报需要注意。您确定要关闭此页吗？＆＃34;。有没有办法只强制刷新而不要求用户许可？现在我正在使用＆＃34; window.location = window.location.href;＆＃34;但它无论如何都要求用户。

      function clickedNew(file){
                var http = new XMLHttpRequest();
                http.open("POST", "./script.php", true);
                http.setRequestHeader("Content-type","application/x-www-form-urlencoded;charset=utf-8");
                var params = "fileName=" + file + "&fileNum=" + <?php echo $count; ?>;
                http.send(params);
                http.onload = function() {
                    window.location = window.location.href;
                }
            }

Answer 1

按Static variables in JavaScript。

中所述，在第一次通话时为您的功能提供新属性

然后您可以检查并阻止HTTP [POST]：

function clickedNew(file){
          if(this.isRefreshing == "undefined")
            {
            var http = new XMLHttpRequest();
            http.open("POST", "./script.php", true);
            http.setRequestHeader("Content-type","application/x-www-form-urlencoded;charset=utf-8");
            var params = "fileName=" + file + "&fileNum=" + <?php echo $count; ?>;
            http.send(params);
            this.isRefreshing = "refreshing";
            }
            else{
                this.isRefreshing = "undefined"; // should be able to repeat  
            }

            http.onload = function() {
                window.location = window.location.href;
            }
        }

其他script.js

function instantiateClicked(file){
    var insted = new clickedNew();
    insted.isRefreshing = "undefined";
    insted(file); 
}

Javascript刷新页面而不询问用户

1 个答案: