javascript - 在 Jquery 中使用 GET 变量重新加载 URL

Question

我正在尝试重新加载一个在 URL 中附加变量 deviceID 的页面。它显示在“实时”div 中就好了。我做错了什么？:

document.getElementById("realtime").innerHTML = "<pre>"+JSON.stringify(msg)+"</pre>";

        var obj = jQuery.parseJSON(JSON.stringify(msg));
        var deviceId = obj.deviceId;

        var pathname = window.location.pathname;
        var pathAppend = pathname + "?deviceId=" + deviceId;

            window.location.reload(pathAppend);

Answer 1

这是因为你错误地使用了window.location.reload。 reload 接受一个 bool 值:

when it is true, causes the page to always be reloaded from the server. If it is false or not specified, the browser may reload the page from its cache. - MDC

你应该这样做:

var query = window.location.search, deviceParam = "deviceId=" + deviceId;

//if there is a query string, append it, otherwise construct the query string.
query += (query === "" ? "?" : "&") + deviceParam;

window.location.search = query; // page should reload