<!--[if IE 6]>
<script>
function correctPNG() {
    for(var i=0; i<document.images.length; i++){
        var img = document.images[i];
        var imgName = img.src.toUpperCase();
        if (imgName.substring(imgName.length-3, imgName.length) == "PNG") {
            var imgID = (img.id) ? "id='" + img.id + "' " : "";
            var imgClass = (img.className) ? "class='" + img.className + "' " : "";
            var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' ";
            var imgStyle = "display:inline-block;" + img.style.cssText;
            if (img.align == "left") imgStyle = "float:left;" + imgStyle;
            if (img.align == "right") imgStyle = "float:right;" + imgStyle;
            if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle;
            var strNewHTML = "<span "+ imgID + imgClass + imgTitle + "style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
		+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader" + "(src='" + img.src + "', sizingMethod='scale');\"></span>";
            img.outerHTML = strNewHTML;
            i = i-1;
        }
    }
}
window.attachEvent("onload", correctPNG);
</script>
<![endif]--> ​

HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/xml;charset=utf-8");// （1）一定要在（2）的前面，不然会乱码
response.setCharacterEncoding("UTF-8");           // （2）
response.setHeader("Cache-Control", "no-cache");  // HTTP 1.1
response.setHeader("Pragma", "no-cache");         // HTTP 1.0
response.setDateHeader("Expires", 0);             // prevents catching at proxy server
		
StringBuilder sb = new StringBuilder();
// Javascript语句,如(客户端使用eval(req.responseText);)
sb.append("document.getElementById(\"result\").value=\"success\";");
// html语句，如（客户端使用obj.innerHTML = req.responseText;）
sb.append("<div>success</div>");
// xml,如（客户端使用obj.value = req.responseXML.get("msg");）
sb.append("<msg>success</msg>");

PrintWriter out = response.getWriter();               // （3）一定要在（1）（2）的后面
out.write(sb.toString());
out.flush();
out.close();

function ajax() {
    var arg1= document.getElementById("arg1").value;
    var arg2 = document.getElementById("arg2").value;
	var url = "deal.jsp?arg1=" + escape(arg1) + "&arg2=" + escape(arg2);
	// alert(url);
    // 创建异步请求对象
	if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
	}
    // 发送请求
	req.open("post", url, true);
    // 返回后执行的方法
	req.onreadystatechange = callback;
	req.send(null);
}

function callback() {
	if (req.readyState == 4) {
		if (req.status == 200) {
			// deal with the response text
			// alert(req.responseText);
			eval(req.responseText); // 如果返回的是js语句
            //or
            document.getElementById("result").innerHTML = req.responseText; // 如果返回的是纯html语句            //or
            document.getElementById("result").value = req.responseXML.get("msg");; // 如果返回的是xml格式的信息
		} else {
			// 失败
			alert(req.status + "\r\n" +req.responseText);
			window.location = location;
		}
	}
}

/* 链接
   初始状态: 蓝色(blue),无下划线
   鼠标悬停: 橙色(#F30),无下划线*/
a:link {
	color: blue;
	text-decoration: none;
}
a:visited {
	color: blue;
	text-decoration: none;
}
a:hover {
	color: #F30;
	text-decoration: none;
}

/* float
   左浮动,右浮动和无浮动*/
.float-left {
	float: left;
}
.float-right {
	float: right;
}
.float-none {
	float: none;
}

/* 对齐方式
   左对齐,右对齐和居中对齐*/
.left {
	text-align: left;
}
.center {
	text-align: center;
}
.right {
	text-align: right;
}

/* clear*/
.clear {
	clear: both;
}

/* 空行,高10px*/
.blank {
	height: 10px;
}

body {
	width: 900px; /* 页面宽度*/
	text-align: center;
	margin: 0 auto;
	font-size: 12px;
	background-color: #fff; /* 背景颜色，白色*/
}

#wrapper {
	width: 900px; /* 页面宽度*/
	margin: 0px auto;
    text-align: left;
}

<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="1002" height="215" id="FlashID" title="banner">
    <param name="movie" value="flash/banner.swf" />
    <param name="quality" value="high" />
    <param name="wmode" value="opaque" />
    <param name="swfversion" value="9.0.45.0" />
    <!-- 此 param 标签提示使用 Flash Player 6.0 r65 和更高版本的用户下载最新版本的 Flash Player。如果您不想让用户看到该提示，请将其删除。 -->
    <param name="expressinstall" value="flash/expressInstall.swf" />
    <param name="SCALE" value="noborder" />
    <!-- 下一个对象标签用于非 IE 浏览器。所以使用 IECC 将其从 IE 隐藏。 -->
    <!--[if !IE]>-->
    <object type="application/x-shockwave-flash" data="flash/banner.swf" width="1002" height="215">
      <!--<![endif]-->
      <param name="quality" value="high" />
      <param name="wmode" value="opaque" />
      <param name="swfversion" value="9.0.45.0" />
      <param name="expressinstall" value="flash/expressInstall.swf" />
      <param name="SCALE" value="noborder" />
      <!-- 浏览器将以下替代内容显示给使用 Flash Player 6.0 和更低版本的用户。 -->
      <div>
        <h4>此页面上的内容需要较新版本的 Adobe Flash Player。</h4>
        <p><a href="http://www.adobe.com/go/getflashplayer"><img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="获取 Adobe Flash Player" width="112" height="33" /></a></p>
      </div>
      <!--[if !IE]>-->
    </object>
    <!--<![endif]-->
</object>