我只是在编写一个小型 Ajax 框架以在小型项目中实现可重用性，但我遇到了一个问题。基本上我在发送请求时收到“NS_ERROR_ILLEGAL_VALUE”错误，我不知道发生了什么。
HTML 页面 ( trim 但显示错误)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Ajax Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript">
var COMPLETE = 4;
var OK = 200;
function GetXMLHttpRequestObject()
{
var XMLHttpRequestObject = false;
if(window.XMLHttpRequest)
{
if(typeof XMLHttpRequest != 'undefined')
{
try
{
XMLHttpRequestObject = new XMLHttpRequest();
}
catch (e)
{
XMLHttpRequestObject = false;
}
}
}
else if (window.ActiveXObject)
{
try
{
XMLHttpRequestObject = new ActiveXObject('Msxml2.XMLHTTP');
}
catch (e)
{
try
{
XMLHttpRequestObject = new ActiveXObject('Microsoft.XMLHTTP');
}
catch (e)
{
XMLHttpRequestObject = false;
}
}
}
else
{
XMLHttpRequestObject = false;
}
return XMLHttpRequestObject;
}
//The Main Ajax Object
function AjaxRequest(p_RequestMethod, p_DestinationURL)
{
this.XMLHttpRequestObject = GetXMLHttpRequestObject();
this.RequestedMethod = p_RequestMethod;
this.DestinationURL = p_DestinationURL;
this.XMLHttpRequestObject.open(this.RequestMethod, this.DestinationURL);
this.OnStateChange = function(Callback)
{
this.XMLHttpRequestObject.onreadystatechange = Callback;
}
this.Send = function(p_Content)
{
this.XMLHttpRequestObject.send(p_Content);
}
this.GetState()
{
return this.XMLHttpRequestObject.readyState;
}
this.GetResponseText = function()
{
return this.XMLHttpRequestObject.responseText;
}
this.GetResponseStatus = function()
{
return this.XMLHttpRequestObject.status;
}
this.GetResponseStatusText = function()
{
return this.XMLHttpRequestObject.statusText;
}
}
var Request;
function GetData()
{
Request = new AjaxRequest('POST', 'http://www.kalekold.net/ajax/Ajax.php');
Request.OnStateChange = StateChange;
Request.Send();
}
function StateChange()
{
window.alert("State: " + Request.GetState());
window.alert("Response: " + Request.GetResponseStatus());
window.alert("Response Text: " + Request.GetResponseStatusText());
if(Request.GetState() == COMPLETE && Request.GetResponseStatus() == OK)
{
Result = Request.GetResponseText();
window.alert(Result);
}
}
</script>
</head>
<body>
<form>
<textarea name="TextArea" rows="10" cols="80"></textarea><br />
<input type="button" value="Load" onClick="GetData();">
</form>
</body>
</html>
PHP 文件:
<?php
$XML = <<< PROLOG
<?xml version="1.0" encoding="iso-8859-1"?>
PROLOG;
$XML .= "<results>";
$XML .= "<result>";
$XML .= "<FirstName>Gary</FirstName>";
$XML .= "<SecondName>Willoughby</SecondName>";
$XML .= "<Age>35</Age>";
$XML .= "</result>";
$XML .= "<result>";
$XML .= "<FirstName>Sara</FirstName>";
$XML .= "<SecondName>Gostick</SecondName>";
$XML .= "<Age>35</Age>";
$XML .= "</result>";
$XML .= "</results>";
header("Content-Type: text/xml");
echo $XML;
?>
完整错误:
uncaught exception: [Exception... "Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIXMLHttpRequest.open]" nsresult: "0x80070057 (NS_ERROR_ILLEGAL_VALUE)" location: "JS frame :: http://www.kalekold.net/ajax/ :: AjaxRequest :: line 63" data: no]
Line 0
我只是看不出哪里出了问题，有什么想法吗？
最佳答案
异常“组件返回失败代码:0x80070057 (NS_ERROR_ILLEGAL_VALUE)”是由于调用 open 方法时传递了非法值引起的。
查看您的代码我发现拼写错误:
this.RequestedMethod = p_RequestMethod; this.DestinationURL = p_DestinationURL; this.XMLHttpRequestObject.open(this.RequestMethod, this.DestinationURL);
看到 this.RequestedMethod 属性设置为 p_RequestMethod 并且 this.RequestMethod 被传递到“open”方法的调用中。
此外，我建议使用开源 XMLHttpRequest.js，而不是创建自己的包装器- 符合标准的跨浏览器 XMLHttpRequest 对象实现，还修复了浏览器的 native XMLHttpRequest 对象实现的大约 20 个错误。
关于javascript - 如何使用 Ajax 解决 'NS_ERROR_ILLEGAL_VALUE' 错误？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/203161/