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Ajax简要说明及实例

发布时间: 2007-03-19 12:35    作者: 未知    来源: 未知    浏览:    评论


                        out.write(sb.toString());
                        out.close();
                }
        }

}

html页面:

<html>
<head>
<title>AJAX.html</title>
</head>
<script type="text/javascript">

/*通过异步传输XMLHTTP发送参数到ajaxServlet,返回符合条件的XML文档*/

function getResult()
{
        var url = "servlet/com.ajaxServlet?action=send";
        if (window.XMLHttpRequest)
        {
                req = new XMLHttpRequest();
        }else if (window.ActiveXObject)
        {
                req = new ActiveXObject("Microsoft.XMLHTTP");
        }
        if(req)
        {
                req.open("GET",url, true);
                req.onreadystatechange = complete;
                req.send(null);
        }
}

/*分析返回的XML文档*/

function complete()
{
        if (req.readyState == 4)
        {
                if (req.status == 200)
                {
                        var type = req.responseXML.getElementsByTagName("type_name");
                        var str=new Array();
                        for(var i=0;i<type.length;i++)
                        {
                                str[i]=type[i].firstChild.data;

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