简述:
extJS 对JSON文件的展现
知识点:
1. JSON文件结构分析,以及基本写法
2. Ext.data.JsonStore()函数的使用
3.使用控件Ext.grid.GridPanel({...})
测试:
首先需要保证,json文件的正确性,可以到如 http://www.bejson.com/go.html?u=http://www.bejson.com/
验证json文件格式的正确性,直接粘贴上去verify一下
目录结构:
json文件和脚本代码:
jsonSrc/jsonTxt1.json,
{ "personInfoList": [ { "id": 0, "name": "A", "age": 12 }, { "id": 1, "name": "B", "age": 32 }, { "id": 2, "name": "C", "age": 2 } ] }
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>test4.html</title> <link rel="stylesheet" type="text/css" href="../ext-3.3.1/resources/css/ext-all.css"></link> <script type="text/javascript" src="../ext-3.3.1/adapter/ext/ext-base.js"></script> <script type="text/javascript" src="../ext-3.3.1/ext-all.js"></script> <script type="text/javascript"> Ext.onReady(function(){ var myStore = new Ext.data.JsonStore({ url: '../jsonSrc/jsonTxt1.json', root: 'personInfoList', autoLoad: true, fields: [{name: 'id', type: 'int'}, {name: 'name', type: 'string'}, {name: 'age', type: 'int'}] }); var columns = new Ext.grid.ColumnModel({ columns: [ { header: 'ID', dataIndex: 'id' }, { header: 'Name', dataIndex: 'name' }, { header: 'Age', dataIndex: 'age' } ] }); var grid = new Ext.grid.GridPanel({ id: 'gridPanel', title : 'Person Info Panel', width : 250, height : 250, renderTo : 'personInfoListPanel', store : myStore, colModel : columns }); }); </script> </head> <body> <div id = "personInfoListPanel"></div> </body> </html>