最近在学习ext。。遇到了与后台交互的问题了。。我自己做了很简单的例子可是不知道为什么。数据就是读不出来。。请大家帮帮看。。贴源码:Ext.onReady(function(){
var re = new Ext.data.Record.create([{
name : "id",
type : "int",
mapping : "id"
}, {
name : "name",
type : "string",
mapping : "name"
}, {
name : "sex",
type : "string",
mapping : "sex"
}, {
name : "eamli",
type : "string",
mapping : "eamli"
}
]);
var store = new Ext.data.Store({
url : "http://localhost:8080/ex/user",
reader : new Ext.data.JsonReader({
}, re)
}); var cm = new Ext.grid.ColumnModel([
{header:"编号",dataIndex:"id"},
{header:"姓名",dataIndex:"name"},
{header:"性别",dataIndex:"sex"},
{header:"eamli",dataIndex:"eamli"}
]);
store.load({});
var grid = new Ext.grid.GridPanel({
title:"个人信息管理",
store:store,
cm:cm
});
new Ext.Viewport({
layout:"fit",
items:[grid]
});
});后台会返回一个JSON的对象:{"user":{"eamli":"dsfsd","id":5,"name":"sds","sex":"dsa"}},后台能够正确返回的。这个我试验过了。。请大家帮忙看看有错误的呢?
var re = new Ext.data.Record.create([{
name : "id",
type : "int",
mapping : "id"
}, {
name : "name",
type : "string",
mapping : "name"
}, {
name : "sex",
type : "string",
mapping : "sex"
}, {
name : "eamli",
type : "string",
mapping : "eamli"
}
]);
var store = new Ext.data.Store({
url : "http://localhost:8080/ex/user",
reader : new Ext.data.JsonReader({
}, re)
}); var cm = new Ext.grid.ColumnModel([
{header:"编号",dataIndex:"id"},
{header:"姓名",dataIndex:"name"},
{header:"性别",dataIndex:"sex"},
{header:"eamli",dataIndex:"eamli"}
]);
store.load({});
var grid = new Ext.grid.GridPanel({
title:"个人信息管理",
store:store,
cm:cm
});
new Ext.Viewport({
layout:"fit",
items:[grid]
});
});后台会返回一个JSON的对象:{"user":{"eamli":"dsfsd","id":5,"name":"sds","sex":"dsa"}},后台能够正确返回的。这个我试验过了。。请大家帮忙看看有错误的呢?
var store = new Ext.data.JsonStore({
url : "http://localhost:8080/ex/user",
autoLoad: true,//自动加载数据
root:'user',
fields: ['eamli', 'id', 'name','sex']
});
Ext.onReady(function () {
var store = new Ext.data.JsonStore({
id: 'store',
url: 'data.htm',
root: 'user',
fields: ['id','name','sex','eamli']
});
var cm = new Ext.grid.ColumnModel([
{ header: "编号", dataIndex: "id" },
{ header: "姓名", dataIndex: "name" },
{ header: "性别", dataIndex: "sex" },
{ header: "eamli", dataIndex: "eamli" }
]);
store.load({});
var grid = new Ext.grid.GridPanel({
title: "个人信息管理",
store: store,
cm: cm
}); new Ext.Viewport({
layout: "fit",
items: [grid]
});
});返回的格式也有问题:
要这样{"user":[{"eamli":"dsfsd","id":5,"name":"sds","sex":"dsa"}]}
for ( var i = 0; i < cm.columns.length; i++) {
dsFields.push(cm.columns[i].dataIndex);
}
var dsReaderOptions = {
root : "users", //数据集获取根目录
fields : dsFields
//数据集配置
};json : {user:[{name:"a",age:23},{name:"b",age:21}]}