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我在 DataTable 中插入 json 数据时遇到问题。这是服务器发送的 json 数据示例：

{"geneItemList":"{"col":"symbol","qv":"cd4","limit":"-1","start":"0","geneid":"920","name":"CD4"
,"symbol":"CD4","lastupdated":"2009-05-20 10:01:52.0","lastmodified":"2009-05-20 11:12:37.0"}
,...

这里是我的 YUI 代码： 

 <script type="text/javascript">
    YAHOO.namespace("local");
    var qct = YAHOO.local;


        YAHOO.util.Event.addListener(window, "load", function() {
            qct.RowSelection = function() {
                var myColumnDefs = [
                    {key:"geneid", label:"Gene", formatter: "number", sortable:true},
                    {key:"name", label:"Name", sortable:true},
                    {key:"symbol", label:"Symbol", sortable:true},
                    {key:"lastupdated", label:"Last Updated", formatter:"date", sortable:true},
                    {key:"lastmodified", label:"Last Modified", formatter:"date", sortable:true}
                ];

                var myDataSource = new YAHOO.util.DataSource("qct-list.html");
                myDataSource.responseType = YAHOO.util.DataSource.TYPE_JSON;
                myDataSource.connXhrMode = "queueRequests";
                myDataSource.responseSchema = {
                    resultsList: "geneItemList",
                    fields: [{key:"col", parser:"string"},
                             {key:"qv", parser:"string"},
                             {key:"limit", parser:"number"},
                             {key:"start", parser:"number"},
                             {key:"geneid", parser:"number"},
                             {key:"name", parser:"string"},
                             {key:"symbol", parser:"string"},
                             {key:"lastupdated", parser:"date"},
                             {key:"lastmodified", parser:"date"}]
                };

                // test this
                var myGeneListTable = new YAHOO.widget.DataTable("geneListTable", myColumnDefs, myDataSource,
                {initialRequest:"?col=<c:out value="${fieldName}"/>&qv=<c:out value="${queryValue}"/>&start=<c:out value="${start}"/>&limit=<c:out value="${limit}"/>", selectionMode:"single"});
etc...

当我测试我的页面时，出现“数据错误”。在我的数据表中！

一个想法有什么问题？

4

2 回答 2

2

我找到了解决我的问题的方法。这是json的错误！

坏的 ：

{"geneItemList":"{"col":"symbol","qv":"cd4","limit":"-1","start":"0","geneid":"920","name":"CD4"
,"symbol":"CD4","lastupdated":"2009-05-20 10:01:52.0","lastmodified":"2009-05-20 11:12:37.0"}
,...

好的 ：

{"geneItemList":**[**{"col":"symbol","qv":"cd4","limit":"-1","start":"0","geneid":"920","name":"CD4"
,"symbol":"CD4","lastupdated":"2009-05-20 10:01:52.0","lastmodified":"2009-05-20 11:12:37.0"}
,...}**]**
}

这只是一个语法问题！如果 YUI DataTable 出现“数据错误”，首先要做的是查看来自服务器的 JSON 响应。

于 2009-06-01T20:24:27.693 回答
0

一些工具可以帮助调试您的 JSON！

您可以使用： http: //www.jsonlint.com/（跟踪您的错误）

语法帮助：http ://en.wikipedia.org/wiki/JSON

另一个提示，是在测试新脚本时使用 yui 调试模式。

例如：.../json-debug.js

于 2009-10-13T15:33:34.180 回答