如题：[code="java"]
Ext.onReady(function() {
var sm = new Ext.grid.CheckboxSelectionModel();
// //定义一个ColumnModel，表头中有四列
var cm = new Ext.grid.ColumnModel([
{header:'编号',dataIndex:'id'},
{header:'名称',dataIndex:'name'},
{header:'描述',dataIndex:'descn'}
]);
var ds = new Ext.data.Store({
proxy: new Ext.data.HttpProxy({url:'employee.do?method=queryall'}),
autoLoad : true,
reader: new Ext.data.JsonReader({
totalProperty: 'totalProperty',
root: 'root'}, [ {name: 'id'}, {name: 'name'}, {name: 'descn'}])});
var grid = new Ext.grid.GridPanel({
el: 'grid',
ds: ds,
cm: cm,
bbar: new Ext.PagingToolbar({ pageSize: 10, store: ds, displayInfo: true, displayMsg: '显示第 {0} 条到 {1} 条记录，一共 {2} 条', emptyMsg: "没有记录" })
});
ds.load({params:{start:0,limit:10}});
grid.render();
});
[/code]
[code="java"]
public ActionForward queryall(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
System.out.println("-----------------");
int totalProperty = employeeDao.totalRecord();
int start;
try {
start = Integer.parseInt(request.getParameter("start"));
} catch (NumberFormatException e1) {
start = 0;
}
int limit;
try {
limit = Integer.parseInt(request.getParameter("limit"));
} catch (NumberFormatException e1) {
limit = 2 ;
}
if(start>0)
start = start/limit;
//Hibernate级联时,用json有错误,要把被级联的那个对象干掉,这样就没法显示被级联的对象了
// JsonConfig conf = new JsonConfig();
// conf.setExcludes(new String[]{"newstype"});
List list = employeeDao.queryAll(start, limit);
JSONArray jsonArray = new JSONArray();
Iterator ite = list.iterator();
//对list转变成的ite进行遍历，得到每个对象，并put到map里，再把map放到json数组里
while(ite.hasNext()){
Employee news = (Employee) ite.next();
Map map = new HashMap();
map.put("id", news.getId());
map.put("name", news.getName());
map.put("descn", news.getDescn());
jsonArray.add(map);
}
String jsonStr = jsonArray.toString();
//为了分页，要加上start,limit,totalProperty,下面的符合json数据的形式
String jsonString = "{start:"+start+",limit:"+limit+",totalProperty:"+totalProperty+",newsList:"+jsonStr+"}";
System.out.println("-----------------"+jsonString);
response.setContentType("text/html;charset=utf-8");
try { //输出来，到jsp页面调用
response.getWriter().write(jsonString);
} catch (IOException e) {
e.printStackTrace();
}
return null;//返回null
}
[/code]
Ext 没有进入Action 中去数据！
