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ajax交互Struts 2的action2015-01-261.客户端网页代码

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=GB18030"><title>检测用户名是否唯一</title><script language="javascript">function createRequest(url) {http_request = false;if (window.XMLHttpRequest) { // 非IE浏览器http_request = new XMLHttpRequest(); //创建XMLHttpRequest对象} else if (window.ActiveXObject) { // IE浏览器try {http_request = new ActiveXObject("Msxml2.XMLHTTP"); //创建XMLHttpRequest对象} catch (e) {try {http_request = new ActiveXObject("Microsoft.XMLHTTP"); //创建XMLHttpRequest对象} catch (e) {}}}if (!http_request) {alert("不能创建XMLHttpRequest对象实例!");return false;}http_request.onreadystatechange = getResult; //调用返回结果处理函数http_request.open("GET", url, true); //创建与服务器的连接http_request.send(null); //向服务器发送请求}function getResult() {if (http_request.readyState == 4) { // 判断请求状态if (http_request.status == 200) { // 请求成功,开始处理返回结果document.getElementById("toolTip").innerHTML = http_request.responseText; //设置提示内容document.getElementById("toolTip").style.display = "block"; //显示提示框} else { // 请求页面有错误alert("您所请求的页面有错误!");}}}function checkUser(userName) {if (userName.value == "") {alert("请输入用户名!");userName.focus();return;} else {//createRequest("http://10.65.9.181:8090/ajax/checkUser.jsp?user="+userName.value);createRequest("http://10.65.9.181:8090/ajax/checkUser.action?user="+ userName.value);}}</script><style type="text/css"><!--#toolTip {position: absolute;left: 331px;top: 39px;width: 98px;height: 48px;padding-top: 45px;padding-left: 25px;padding-right: 25px;z-index: 1;display: none;color: red;background-image: url(images/tooltip.jpg);}--></style></head><body style="margin: 0px;"><form method="post" action="" name="form1"><table width="509" height="352" border="0" align="center"cellpadding="0" cellspacing="0" background="images/bg.gif"><tr><td height="54"> </td></tr><tr><td height="253" valign="top"><div style="position: absolute;"><table width="100%" height="250" border="0" cellpadding="0"cellspacing="0"><tr><td width="18%" height="54" align="right" style="color: #8e6723"><b>用户名:</b></td><td width="49%"><input name="username" type="text"id="username" size="32"></td><td width="33%"><img src="images/checkBt.jpg" width="104"height="23" style="cursor: hand;"onClick="checkUser(form1.username);"></td></tr><tr><td height="51" align="right" style="color: #8e6723"><b>密码:</b></td><td><input name="pwd1" type="password" id="pwd1" size="35"></td><td rowspan="2"><div id="toolTip"></div></td></tr><tr><td height="56" align="right" style="color: #8e6723"><b>确认密码:</b></td><td><input name="pwd2" type="password" id="pwd2" size="35"></td></tr><tr><td height="55" align="right" style="color: #8e6723"><b>E-mail:</b></td><td colspan="2"><input name="email" type="text" id="email"size="45"></td></tr><tr><td> </td><td colspan="2"><input type="image" name="imageField"src="images/registerBt.jpg"></td></tr></table></div></td></tr><tr><td> </td></tr></table></form></body></html>