[code="servlet"]public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=gbk");
PrintWriter out = response.getWriter();
String json="[{cid:1,cname:'武汉市'},{cid:2,cname:'荆门市'},{cid:3,cname:'宜昌市'},{cid:4,cname:'沙洋市'},{cid:5,cname:'潜江市'}]";
out.println(json);
out.flush();
out.close();
}[/code]
[code="js"]
Ext.onReady(function() {
var proxy = new Ext.data.HttpProxy({
url : "CityJsonServlet"
});
var City = Ext.data.Record.create([{
name : "cid",
type : "int",
mapping : "cid"
}, {
name : "cname",
type : "string",
mapping : "cname"
}]);
var reader = new Ext.data.JsonReader({}, City);
var store = new Ext.data.Store({
proxy : proxy,
reader : reader,
autoLoad:true
});
var combobox = new Ext.form.ComboBox({
triggerAction : "All",
store : store,
displayField : "cname",
valueField : "cid",
mode : "remote",
emptyText : "请选择市",
renderTo : Ext.getBody()
})
})
[/code]
[code="jsp"]
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
Dnamic ComboBox Example
href="./scripts/ext/resources/css/ext-all.css" />
src="./scripts/ext/adapter/ext/ext-base.js">
<br><br>
[/code]
