[英]How do I make an asynchronous HTTP request in Javascript?
How do I asynchronously send a HTTP request with POST method and some variables to a page, like it was opened in a browser?如何使用 POST 方法和一些变量将 HTTP 请求异步发送到页面,就像在浏览器中打开一样?
I integrated my login system with my forum's, but, to complete the login, the user must be redirected to the forum and then back to the current page.我将我的登录系统与我的论坛集成,但是,要完成登录,用户必须被重定向到论坛,然后返回当前页面。 This is a kind of killer for my iPhone web app.
这是我的 iPhone web 应用程序的杀手锏。
With this request I need to send some POST variables so the login can actually take place.有了这个请求,我需要发送一些 POST 变量,以便实际进行登录。 How do I do this in JavaScript and/or jQuery?
如何在 JavaScript 和/或 jQuery 中执行此操作?
Edit : According to the jQuery AJAX library examples, this should work:编辑:根据 jQuery AJAX 库示例,这应该有效:
$.ajax({
type: "POST",
url: "/forum/ucp?mode=login",
data:
({
username : $("#username").first().val(),
password : $("#password").first().val(),
autologin : $("#autologin").first().val(),
viewonline : $("#viewonline").first().val(),
redirect : window.location
}),
success: function(msg)
{
location.reload();
}
});
But guess what?但猜猜怎么了? It doesn't!
它没有!
$.ajax({
type: "POST",
url: "login.php",
data: "user=bob&password=pass",
success: function(data) {
//function called when the server responds
}
}
Just use an XMLHttpRequest object.只需使用 XMLHttpRequest object。 This object is native to JavaScript.
此 object 是 JavaScript 原生的。 There is plenty of instructions for this class on the web.
web 上有很多关于这个 class 的说明。
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