javascript中的xmlhttpRequest [英] xmlhttpRequest in javascript

问题描述

我写了以下代码

I have written following code

<script type="text/javascript" language="javascript">
       function GetHttpRequestObject() {

               xmlhttp = new XMLHttpRequest();

               if (xmlhttp != null) {

                   xmlhttp.open("Get", "../Book.xml", true)
                   alert(xmlhttp.responseText);

               }
               else {

                   alert("not created");

               }

       }

   </script>

我在根目录下有Book.xml文件.
当我运行此代码时，我收到空白警报消息，但是我认为它应该显示以xml编写的值.请在这里帮我

i have Book.xml file at root .
when i am running this code i am getting blank alert message, but i think it should show values written in xml. please help me out here

推荐答案

if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
           xmlhttp = new XMLHttpRequest();
       }
       else {// code for IE6, IE5
           xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
       }
       xmlhttp.onreadystatechange = function () {
           if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
               message1.innerHTML = xmlhttp.responseText;
           }
       }
       xmlhttp.open("GET", "../Book.xml", true);
       xmlhttp.send();

试试吧...

Try it...

这篇关于javascript中的xmlhttpRequest的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！