Question

我正在寻找让用户知道他们在关闭窗口时必须注销的方法。我已经创建了这段代码：

window.onbeforeunload = confirmExit;
function confirmExit()
{
    return "It is better if you log out, before you close this page!";
}
$(function ()
{
    $("a").click(function()
    {
        window.onbeforeunload = null;
    });
});

当我关闭页面时，这非常有效。就像我想要的那样，但它也显示我何时重新加载页面，这不应该发生。

任何人都知道如何解决这个问题，甚至可能吗？

Answer 1

我相信这有助于解决您的问题。它的工作原理是首先检测用户是否按下了键码116（f5键），或者换句话说是刷新按钮。如果有，它将存储此按钮的状态，以便事件beforeunload不会显示提示。以下是您需要的javascript / jquery：

注意：这在jsfiddle中不会按预期运行，因此我排除了一个示例。

//set the variable exit to true initially because you haven't hit
//the f5 button yet to refresh
var exit = true;

//on keydown event to check if the f5 or 116 keycode has been pressed
$(window).on("keydown",function(e){//begin window on keydown event

    //if the keycode = 116
    //in other words the user has pressed the f5 key
    if(e.which === 116){//begin if then

      //set exit to false because so the prompt doesn't display
      exit = false;

    }//end if then


});//end window on keydown event


    //bind the beforeunload event to the window
    $(window).bind("beforeunload", function() {//begin event

        //if exit = true then display the prompt
        if (exit === true) {//begin if then

            //display the prompt
            //note the browser may over ride the string in your return value
            return "Are you sure you want to leave?";
        } else {

            //do nothing, no prompt will be created
            return;

        }//end if then


});//end event

关闭窗口时的警告框，但不是重新加载

1 个答案: