帮忙找错

Question

<script>
function GetXmlHttpObject() {
            var xmlHttp = null;
            try {
                // Firefox, Opera 8.0+, Safari
                xmlHttp = new XMLHttpRequest();
            }
            catch (e) {
                // Internet Explorer
                try {
                    xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
                }
                catch (e) {
                    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
                }
            }
            return xmlHttp;
        }
        function GetBlogList() {
            var myXReq = GetXmlHttpObject();
            try {
                myXReq.open("GET", "Blog.xml", true);
                myXReq.setRequestHeader("Content-Type", "text/xml;charset=utf-8");
myXReq.readystatechange=function(){
 alert(myXReq.readyState);
 if(myXReq.readyState == 4){
alert(myXReq.status);
 }
}
                myXReq.send();
               
            }
            catch (e) {
                alert(e);
            }
            
        }</script>

Answer 1

1、myXReq.send(true);
2、url:资源定位；href:地址连接；src:贴图位置

Answer 2

xml能返回数据吗?你能在javascript里面用一个对象加载一个xml,然后再通过这个对象解析这个xml文件.
var xmldom=xmlhttp.load("Blog.xml");

Answer 3

 myXReq.readystatechange=function(){
                     alert(myXReq.readyState);
                     if(myXReq.readyState == 4){
                        alert(myXReq.status);
                     }
                }
                myXReq.send(true);

Answer 4

//或者：
   function GetBlogList() {
            var myXReq = GetXmlHttpObject();
            try {
                myXReq.open("GET", "Blog.xml", false);
                myXReq.setRequestHeader("Content-Type", "text/xml;charset=utf-8");
                myXReq.send();
                alert(myXReq.readyState);
            }
            catch (e) {
                alert(e);
            }

Answer 5

我也不知道能访问xml文件是否就是返回xml数据。请各位明示。你说的方法可行（直接用xmldom去load），但我想用xmlhttprequest试试。

Answer 6

//try:
       var xmlHttp = null;
       function GetXmlHttpObject() {
            try {
                // Firefox, Opera 8.0+, Safari
                xmlHttp = new XMLHttpRequest();
            }
            catch (e) {
                // Internet Explorer
                try {
                    xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
                }
                catch (e) {
                    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
                }
            }
        }
        function GetBlogList() {
            GetXmlHttpObject();
            try {
                xmlHttp.open("GET", "Blog.xml", true);
                xmlHttp.setRequestHeader("Content-Type", "text/xml;charset=utf-8");
                xmlHttp.send();
                xmlHttp.onreadystatechange=GetValue;
            }
            catch (e) {
                alert(e);
            }
        }        function GetValue()
        {
            alert(xmlHttp.readyState);
        }