后台管理中总是使用frameset进行分成部分进行管理,但是感觉很不好用,尤其是页面间调转还要判断window.parent,太令我费神了,于是学习使用XMLHttpRequest进行页面局部刷新。代码如下:
Java代码
class="star" src="/Upload/Images/2014062517/40B102E0EF997EA6.png" alt="收藏代码" />
- <html>
- <head>
- <script type="text/javascript">
- window.onload = function(){
- document.getElementById("email").onblur = function(){
- if(window.XMLHttpRequest){
- http_request = new XMLHttpRequest();
- if(http_request.overrideMimeType){
- http_request.overrideMimeType("text/xml");
- }
- }else if(window.ActiveXObject){
- try{
- http_request = new ActiveXObject("Msxml2.XMLHTTP");
- }catch(e){
- try{
- http_request = new ActiveXObject("Microsoft.XMLHTTP");
- }catch(e){}
- }
- }
- if(!http_request){
- window.alert("不能创建XMLHttpRequest对象实例!");
- return false;
- }
- http_request.onreadystatechange = function(){
- if(http_request.readyState == 4 &&
- http_request.status == 200) {
- document.getElementById("emailTip").innerHTML
- =http_request.responseText;
- }
- };
- http_request.open("GET", "email.jsp?email="+this.value, true);
- http_request.send(null);
- }
- }
- </script>
- </head>
- <body>
- <input type="button" value="修改" onclick="getOtherMessage();" />
- <input type="text" id="email" />
- <span id="emailTip"></span>
- <div id="view">
- 456
- </div>
- </body>
- </html>
后经高手提醒,可以使用ajax技术来写,使用jquery很简单,示例如下:
Java代码
- <html>
- <head>
- <script type="text/javascript" src="js/jquery.js"></script>
- <script type="text/javascript">
- function getOtherMessage(){
- $.ajax({
- type:"post",
- url:"${pageContext.request.contextPath}/getOtherMessage.do",
- success:function(msg){
- $("#view").html(msg);
- },
- error:function(){
- alert("wrong");
- }
- });
- }
- </script>
- </head>
- <body>
- <input type="button" value="修改" onclick="getOtherMessage();" />
- <div id="view">
- 456
- </div>
- </body>
- </html>