Javascript AJAX对象IE8错误
使用下面的代码,我得到了错误: 消息:未实现。 行:this.xmlHttpRequestObject.onreadystatechange=onreadystatechange ajax.jsJavascript AJAX对象IE8错误,javascript,ajax,internet-explorer,Javascript,Ajax,Internet Explorer,使用下面的代码,我得到了错误: 消息:未实现。 行:this.xmlHttpRequestObject.onreadystatechange=onreadystatechange ajax.js function Ajax(url, method, onreadystatechange, asynchronous) { this.xmlHttpRequestObject = new XMLHttpRequest(); this.method = method; this.
function Ajax(url, method, onreadystatechange, asynchronous) {
this.xmlHttpRequestObject = new XMLHttpRequest();
this.method = method;
this.url = url;
this.asynchronous = asynchronous === undefined ? true : asynchronous;
this.xmlHttpRequestObject.onreadystatechange = onreadystatechange;
}
Ajax.prototype.send = function () {
this.xmlHttpRequestObject.open(this.method, this.url, this.asynchronous);
this.xmlHttpRequestObject.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
this.xmlHttpRequestObject.send();
return this;
};
Ajax.prototype.onreadystatechange = function (onreadystatechange) {
this.xmlHttpRequestObject.onreadystatechange = onreadystatechange;
return this;
};
Ajax.prototype.onloadstart = function (onloadstart) {
this.xmlHttpRequestObject.onloadstart = onloadstart;
return this;
};
Ajax.prototype.onload = function (onload) {
this.xmlHttpRequestObject.onload = onload;
return this;
};
scripts.js
function loadPage(page) {
var ajax = new Ajax(page, 'GET');
ajax.onloadstart(function () {
var div = document.createElement('div'),
p = document.createElement('p'),
img = document.createElement('img'),
section = document.querySelector('section');
removeChildrenElements(section);
section.style.minHeight = '230px';
div.setAttribute('id', 'loading');
img.setAttribute('src', 'media/images/loading.gif');
img.setAttribute('alt', 'Carregando');
p.appendChild(document.createTextNode('Carregando. Por favor, aguarde ...'));
div.appendChild(p);
div.appendChild(img);
document.querySelector('section').appendChild(div);
});
ajax.onreadystatechange(function (event) {
if (this.readyState === 4 && this.status === 200) {
document.querySelector('section').innerHTML = this.responseText;
} else if (this.status === 404) {
this.abort();
document.location = 'http://www.mydomain.com.br/404';
}
});
ajax.send();
}
该脚本在Firefox4、Google Chrome和Opera中工作。
谢谢。可能与窗口/文档对象冲突。尝试将代码更改为
Ajax.prototype.onreadystatechange = function (readystatechange) {
this.xmlHttpRequestObject.onreadystatechange = readystatechange;
return this;
};
我不明白。。。错误是指向Ajax构造函数,我有下面这个方法。。。谢谢。你看到我重命名了一个变量吗?对不起,参数。。。我要去试一下,不行。与窗口/文档对象冲突?为什么?非常感谢。