javascript - 使用XMLHttpRequest发送POST数据(Send POST data using XMLHttpRequest)

Question

I'd like to send some data using an XMLHttpRequest in JavaScript.

(我想使用JavaScript中的XMLHttpRequest发送一些数据。)

Say I have the following form in HTML:

(说我的HTML形式如下：)

<form name="inputform" action="somewhere" method="post">
    <input type="hidden" value="person" name="user">
    <input type="hidden" value="password" name="pwd">
    <input type="hidden" value="place" name="organization">
    <input type="hidden" value="key" name="requiredkey">
</form>

How can I write the equivalent using an XMLHttpRequest in JavaScript?

(如何在JavaScript中使用XMLHttpRequest编写等效项？)

  ask by Jack Greenhill translate from so

Answer 1

The code below demonstrates on how to do this.

(下面的代码演示了如何执行此操作。)

var http = new XMLHttpRequest();
var url = 'get_data.php';
var params = 'orem=ipsum&name=binny';
http.open('POST', url, true);

//Send the proper header information along with the request
http.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');

http.onreadystatechange = function() {//Call a function when the state changes.
    if(http.readyState == 4 && http.status == 200) {
        alert(http.responseText);
    }
}
http.send(params);