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锁定老帖子 主题：EXT读取后台json数据的问题
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发表时间：2008-10-30
刚开始接触EXT，可以搞了2天了，一个小小的测试都没有搞出来
大侠们帮忙看看吧 ~~~ 后台能取到数据，可前台怎么都取不到json，页面上能显示出grid框和列 但是没有数据；大家看我的代码可能会发现我的列都是中文的，这是由于我们的项目的原因，我查过资料EXT对中文取值是支持的 我的jsp也是UTF-8的 json的后台打印：{"pageInfo":1,"data":[{"签发人":"","归档":"","登记号":"001","保管期限":"10年","文件标题":"关于什么的测试情况","原文路径":"","份数":"","主题词":"啊","备注":"","正文":"","归档份数":"","处理单":"","密级":"机密","责任者":"啊","拟稿人":"","办结提示":"","分类号":"020","成文日期":"20081009","页数":"1","全宗号":"","缓急程度":"","签发时间":"","拟稿部门":"","主办部门":"","文号":"综[2008]1号","附件":"","登记日期":"20081009"}]} java（action）的写法： JSONArray ary = new JSONArray(recodList);
JSONObject jo = new JSONObject();
jo.put("data", ary);
jo.put("pageInfo",recodList.size());
String jstr=jo==null?"":jo.toString();
boolean scriptTag = false;
String cb = request.getParameter("callback");
if (cb != null) {
scriptTag = true;
response.setContentType("text/html;charset=UTF-8");
} else {//"text/html;charset=UTF-8" "text/javascript;charset=UTF-8" "application/x-json;charset=UTF-8"
response.setContentType("text/html;charset=UTF-8");
}
if (scriptTag) {
jstr = cb + "("+jstr+")";
}
System.out.println(jstr);
response.getWriter().print(jstr);
jsp(js代码)
<html>
<head>
<link rel="stylesheet" type="text/css" href="scripts/ext/resources/css/ext-all.css" />
<script type="text/javascript" src="scripts/ext/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="scripts/ext/ext-all.js"></script>
<script type="text/javascript" src="scripts/ext/ext-all-debug.js"></script>
<script type="text/javascript" src="scripts/ext/source/locale/ext-lang-zh_CN.js"></script>
<script type="text/javascript" >
var APP_PATH='/esoaisapp';
Ext.onReady(function(){
function toggleDetails(btn, pressed){
var view = grid.getView();
view.showPreview = pressed;
view.refresh();
}
var ds= new Ext.data.Store({
proxy: new Ext.data.HttpProxy({url: "listPreArchiveEdit.html?content.method=TestGtSearch&contentPath=/preArchive/1@2/1@299/29@332/4@346/3@456/@458"}),
reader: new Ext.data.JsonReader({
totalProperty:"pageInfo",
root:"data",
fields:[
{name:"密级"},
{name:"办结提示"},
{name:"成文日期"},
{name:"附件"},
{name:"责任者"},
{name:"拟稿部门"},
{name:"签发时间"},
{name:"保管期限"},
{name:"登记号"},
{name:"全宗号"},
{name:"登记日期"},
{name:"分类号"},
{name:"主题词"},
{name:"主办部门"},
{name:"份数"},
{name:"归档"},
{name:"拟稿人"},
{name:"签发人"},
{name:"页数"},
{name:"文件标题"},
{name:"原文路径"},
{name:"文号"},
{name:"缓急程度"},
{name:"备注"},
{name:"归档份数"},
{name:"正文"},
{name:"处理单"}
]
})
});
var cbsm=new Ext.grid.CheckboxSelectionModel();
var cm=new Ext.grid.ColumnModel(
[new Ext.grid.RowNumberer(),
cbsm,
{header:"密级",dataIndex:"密级"},
{header:"办结提示",dataIndex:"办结提示"},
{header:"成文日期",dataIndex:"成文日期"},
{header:"附件",dataIndex:"附件"},
{header:"责任者",dataIndex:"责任者"},
{header:"拟稿部门",dataIndex:"拟稿部门"},
{header:"签发时间",dataIndex:"签发时间"},
{header:"保管期限",dataIndex:"保管期限"},
{header:"登记号",dataIndex:"登记号"},
{header:"全宗号",dataIndex:"全宗号"},
{header:"登记日期",dataIndex:"登记日期"},
{header:"分类号",dataIndex:"分类号"},
{header:"主题词",dataIndex:"主题词"},
{header:"主办部门",dataIndex:"主办部门"},
{header:"份数",dataIndex:"份数"},
{header:"归档",dataIndex:"归档"},
{header:"拟稿人",dataIndex:"拟稿人"},
{header:"签发人",dataIndex:"签发人"},
{header:"页数",dataIndex:"页数"},
{header:"文件标题",dataIndex:"文件标题"},
{header:"原文路径",dataIndex:"原文路径"},
{header:"文号",dataIndex:"文号"},
{header:"缓急程度",dataIndex:"缓急程度"},
{header:"备注",dataIndex:"备注"},
{header:"归档份数",dataIndex:"归档份数"},
{header:"正文",dataIndex:"正文"},
{header:"处理单",dataIndex:"处理单"}
]
);
var grid=new Ext.grid.GridPanel({el:"grid",store:ds,cm:cm,sm:cbsm,
width:800,
height:500,
title:"grid",
bbar: new Ext.PagingToolbar({
pageSize: 4,
store: ds,
displayInfo: true,
displayMsg: "Displaying topics {0} - {1} of {2}",
emptyMsg: "No topics to display"
})
});
grid.render();
ds.load({params:{start:0,limited:10}});
});
</script>
</head>
<body style="padding:0px;margin:10px;">
<div id="grid" style="border:0px solid #cccccc;background-color:#f3f3f3;padding:5px;width:100%;" >
</div>
</body>
</html>
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发表时间：2008-10-31
大侠们帮帮忙吧
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发表时间：2008-10-31
你在浏览器里面直接访问“listPreArchiveEdit.html?content.method=TestGtSearch&contentPath=/preArchive/1@2/1@299/29@332/4@346/3@456/@458”这个地址页面能出来json字符串么？
给你看看我的做法（我用的SpringMVC，其他的应该类似）： JSONArray jsonArray = JSONArray.fromObject(list); Map<String,Object> modle = new HashMap<String,Object>(); modle.put("size", size); modle.put("grid", jsonArray); mav.addObject("model", modle); return mav; 然后action跳转到jsp： <%@ taglib prefix="c" uri="http://java.sun.com/jstl/core_rt"%> <%@ page pageEncoding="UTF-8" contentType="text/html;charset=UTF-8"%> {"totalCount":"<c:out value="${model.size}" escapeXml='false'/>","topics":<c:out value="${model.grid}" escapeXml='false'/>} |
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发表时间：2008-10-31
原因找到了 我们用了sitemath 来修饰页面 它会修改response的内容 将sitemath对此页面的修饰去掉就可以了
非常感谢 |
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发表时间：2008-11-12
不是吧，我也用siteMesh,但是返回的json格式的response没变啊
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发表时间：2008-11-12
我怎在做这个demo，借鉴你的，先看看
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