dwr.jsp
script src="dwr/interface/JUserChec.js"/script
script src="dwr/engine.js"/script
script src="dwr/util.js"/script
script type="text/javascript"
function changeQx(p)
{
var val = p.value;
//alert(val);
JUserChec.jiLian(val, haschange);
}
function haschange(changeVal)
{
//alert(changeVal);
var jd = document.getElementById("jd");
var op = new Option(changeVal, changeVal);
jd.options.length=0;
jd.options.add(op);
}
/script
body
brbr
select onchange="changeQx(this)"
option value="a"a/option
option value="b"b/option
option value="c"c/option
/select
select id="jd"
/select
/body

dwr.xml
?xml version="1.0" encoding="GB2312"?
!DOCTYPE dwr
PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN"
"http://getahead.org/dwr/dwr20.dtd"
dwr
allow
create creator="new" javascript="JUserChec"
param name="class" value="com.struts.UserManager"/
include method="ccc"/
include method="jiLian"/
/create
/allow
/dwr

UserManager.java
package com.struts;
public class UserManager {
public boolean ccc(String uname){
if("abc".equals(uname)){
return true;
}
return false;
}
public String jiLian(String qx){
if("a".equals(qx)){
return "a1#a2#a3";
}
if("b".equals(qx)){
return "b1#b2#b3";
}
return "c1#c2";
}
}