Extjs和php交互的一个问题

Question

Ext.onReady(function(){
 var store = new Ext.data.Store({
    url:'data/income.php',
    reader: new Ext.data.JsonReader({
         idProperty: id,
         root: 'data',
         totalProperty: 'total',
         fields:[
            {name: 'stock_code', type: 'string'},
            {name: 'stock_name', type: 'string'},
            {name: 'stime', type: 'string'},
            {name: 'close', type: 'float'}
         ]
     }),
     remoteSort: true
    });
    var cm = new Ext.grid.ColumnModel([
        new Ext.grid.RowNumberer(),
        {header: "代码", width: 100, sortable: true, dataIndex: 'stock_code'},
        {header: "名称", width: 100, sortable: true, dataIndex: 'stock_name'},
        {header: "入选日期", width: 100, sortable: true, dataIndex: 'stime'},
        {header: "涨幅", width: 100, sortable: true, dataIndex: 'close'}
    ]);
    cm.defaultSortable = false;    var rsm = new Ext.grid.RowSelectionModel({
        singleSelect: true
    });    var grid = new Ext.grid.GridPanel({
    id:'grid',
        el:'stock_grid',
        width:document.body.clientWidth,
        height:572,
        store: store,
        colModel: cm,
        trackMouseOver:true,
    selModel: rsm,
    loadMask: ({
            msg: '数据加载中……'
        }),
        viewConfig: {
            forceFit:true,
            emptyText:'没有数据',
            enableRowBody:true
        }
    });
    grid.render();
    store.load();
});income.php产生的json如下
{"total":20,"data":[{"id":"172","stock_code":"600859","stock_name":null,"close":"36.36","raises":"0.00","teacher":"admin123","stime":"2009-12-28","flag":"0","assessor":null,"hits":"1","state":"1","isauto":"1","ext1":"0","ext2":"0","ext3":"0","ext4":"0.00","ext5":"0.00"},{"id":"173","stock_code":"600241","stock_name":null,"close":"13.92","raises":"0.00","teacher":"admin123","stime":"2009-12-28","flag":"0","assessor":null,"hits":"1","state":"1","isauto":"0","ext1":"0","ext2":"0","ext3":"0","ext4":"0.00","ext5":"0.00"},{"id":"174","stock_code":"600243","stock_name":null,"close":"8.53","raises":"0.00","teacher":"admin123","stime":"2009-12-28","flag":"0","assessor":null,"hits":"1","state":"1","isauto":"0","ext1":"0","ext2":"0","ext3":"0","ext4":"0.00","ext5":"0.00"}
]}
但是就是显示不出来，帮看看。

Answer 1

fields:[
            {name: 'stock_code', type: 'string'},
            {name: 'stock_name', type: 'string'},
            {name: 'stime', type: 'string'},
            {name: 'close', type: 'float'}
         ]
只有四个，但是数据里超过四个，还能解析吗？

Answer 2

这样试试：
 proxy: new Ext.data.HttpProxy({
           url:'data/income.php'
        }),
    reader: new Ext.data.JsonReader({
         idProperty: id,
         root: 'data',
         totalProperty: 'total',
         fields:[
            {name: 'stock_code', type: 'string'},
            {name: 'stock_name', type: 'string'},
            {name: 'stime', type: 'string'},
            {name: 'close', type: 'float'}
         ]
     })
如果不行，你把php传过来的json数据直接赋值在js中store调用。看是否运行正常。。详细操作可参见API中jsonreader的使用方法