ExtJs 表格数据load的有关问题
日期：2014-05-16 浏览次数：20857 次
ExtJs 表格数据load的问题 - Web 开发 / Ajax
data.jsp
控制台输出:
{
totalProperty : 10,
root:[
{id:1,name:'cccc',descn:'sddssd'},
{id:2,name:'cccc',descn:'sddssd'},
{id:3,name:'cccc',descn:'sddssd'}
]
}
tt.js
data.jsp
- Java code
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>></title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
</head>
<body>
<%
String start = request.getParameter("start");
String limit = request.getParameter("limit");
//StringBuffer json = new StringBuffer();
String json = "";
try {
int index = Integer.parseInt(start);
int pageSize = Integer.parseInt(limit);
//json.append("{ totalProperty : 100 , root :[");
json += "{totalProperty:5,root:[";
for (int i = index; i < pageSize + index; i++) {
json += "{id:" + i + ",name:'chen" + i + "',descn:'descn"
+ i + "'}";
if (i != pageSize + index - 1) {
json += ",";
}
/*
json.append("{ id : ").append(i).append(", name: ").append(
"chen").append(i).append(",descn : ").append(
"descn").append(i).append("}");
if (i != pageSize + index - 1) {
json.append(",");
}
*/
}
// json.append("]").append("}");
json +="]}";
} catch (Exception e) {
}
System.out.println(json);
response.getWriter().write(json);
response.getWriter().flush();
//out.print(json.toString());
%>
</body>
</html>
控制台输出:
{
totalProperty : 10,
root:[
{id:1,name:'cccc',descn:'sddssd'},
{id:2,name:'cccc',descn:'sddssd'},
{id:3,name:'cccc',descn:'sddssd'}
]
}
tt.js
- JScript code
Ext.onReady(function() {
var myrecord = Ext.data.Record.create([{
name : 'id',
mapping : 'id',
type : 'int'
}, {
name : 'name',
mapping: 'name',
type : "string"
}, {
name : 'descn',
mapping: 'descn',
type : "string"
}]);
var ds = new Ext.data.Store({
proxy : new Ext.data.HttpProxy({
url : 'data.jsp'
}),
reader : new Ext.data.JsonReader({
totalProperty : 'totalProperty ',
root : 'root'
}, myrecord)
});
ds.load({
params : {
start : 0,
limit : 5
}
});
var cm = new Ext.grid.ColumnModel([{
header : '编号',
dataIndex : 'id'
}, {
header : '姓名',
dataIndex : 'name'
}, {
header : '描述',
dataIndex : 'descn'
}]);
var grid = new Ext.grid.GridPanel({
store : ds,
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