The biggest advantage of using Ajax is to maintain the data in the premise of the entire page does not update. This makes Web applications more rapid response to user actions, and to avoid those that do not change the information sent across the network.

21_AJAX\21_自定义标签.ppt
.......\dom4j包\dom4j-1.6.jar
.......\.......\jaxen-1.1-beta-4.jar
.......\例子\AJAX\.classpath
.......\....\....\.mymetadata
.......\....\....\.project
.......\....\....\.settings\.jsdtscope
.......\....\....\.........\org.eclipse.jdt.core.prefs
.......\....\....\.........\org.eclipse.wst.jsdt.ui.superType.container
.......\....\....\.........\org.eclipse.wst.jsdt.ui.superType.name
.......\....\....\src\com\Checkusername.java
.......\....\....\...\...\SelectCity.java
.......\....\....\...\...\Selectusers.java
.......\....\....\WebRoot\index.jsp
.......\....\....\.......\META-INF\MANIFEST.MF
.......\....\....\.......\reciveXML.jsp
.......\....\....\.......\sendTXT.jsp
.......\....\....\.......\sendXML.jsp
.......\....\....\.......\WEB-INF\classes\com\Checkusername.class
.......\....\....\.......\.......\.......\...\SelectCity.class
.......\....\....\.......\.......\.......\...\Selectusers.class
.......\....\....\.......\.......\lib\dom4j-1.6.jar
.......\....\....\.......\.......\...\jaxen-1.1-beta-4.jar
.......\....\....\.......\.......\web.xml
.......\要点.txt
.......\资料\01_最简单的XmlHttpRequest请求.java
.......\....\01_用户名是否存在的判断.java
.......\....\02_AJAX解析XML并动态创建表格.java
.......\....\03_AJAX与Servlet结合，调用Get和Post方法.java
.......\....\04_浏览器发送XML格式，服务端接收XML格式[列表框].java
.......\....\13_AJAX级联下拉框.java
.......\....\ajax教程.chm
.......\....\AJAX的中文处理.java
.......\....\动态添加、删除select得option功能演示整理.mht
.......\例子\AJAX\WebRoot\WEB-INF\classes\com
.......\....\....\.......\.......\classes
.......\....\....\.......\.......\lib
.......\....\....\src\com
.......\....\....\WebRoot\META-INF
.......\....\....\.......\WEB-INF
.......\....\....\.myeclipse
.......\....\....\.settings
.......\....\....\src
.......\....\....\WebRoot
.......\....\AJAX
.......\dom4j包
.......\例子
.......\资料
21_AJAX

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