Easyui datagrid不显示数据

Question

刚接触easyui，不太熟，根据datagrid的格式拼装了数据，无法显示到datagrid里，但是在jsp里面创建一个var变量就可以显示，求大牛帮忙看下

JSP页面代码：

 $(function() {
    //alert(getParasFromUrl("selectType"));
    //alert(getParasFromUrl("objectID"));
    //初始化表格内容
    $('#dataList').datagrid({
        title : 'IP地址详情',
        //data:dataGrid,
        method : 'post',
        singleSelect : true,
        height : 370,
        fit : true,
        fitColumns : true,
        striped : true,
        collapsible : true,
        //url : "/jsp/jcss/IPQueryDetailAction.do?operation=queryIPFromDB",
        url : "/InfoMgr/jsp/jcss/IPQueryDetailAction.do?operation=query&selectType="+getParasFromUrl("selectType") + "&objectID=" + getParasFromUrl("objectID"),
        sortName : 'IP',
        pageSize: 50, //每页显示的记录条数，默认为10
        pageList: [30, 50, 100, 200, 300],  //分页显示选项
        sortOrder : 'asc',
        remoteSort : false,
        idField : 'ID',
        pagination : true, // 显示分页
        rownumbers : true, // 显示行号
        columns : [ [
                    {field : 'ID', title : '序号', width : 20, sortable : true, halign : 'center'},
                    {field : 'IP', title : 'IP', width : 100, sortable : true, halign : 'center'},
                    {field : 'HOSTNAME', title : '主机名称', width : 100, sortable : true, halign : 'center'},
                    {field : 'GATEWAY', title : '网关', width : 80, sortable : true, halign : 'center'},
                    {field : 'USEFOR', title : '用途', width : 120, sortable : true, halign : 'center'},
                    {field : 'PROPOSER', title : '申请人', width : 120, sortable : true, halign : 'center'},
                    {field : 'CREATEDATE', title : '申请时间', width : 120, sortable : true, halign : 'center'},
        ] ],
        onLoadSuccess : function() {
            //alert('OK');
            //$('#dataList').datagrid('reload');
            //$('#dataList').datagrid('clearSelections'); // 一定要加上这一句，要不然datagrid会记住之前的选择状态，删除时会出问题
        },
        onDblClickRow: function (rowIndex, rowData) {

        },
        onClickRow: function (rowIndex, rowData) {

        },

    });
});

后台数据拼装：

    public List getIPSegFromDB(String ID){
        System.out.println("call getIPSegFromDB");
        List<String> lstIPs = new ArrayList<String>();

        StringBuffer sb = new StringBuffer();
        sb.append("{\"total\":28,\"rows\":[");
        sb.append("{\"ID\":\"1\",\"IP\":\"192.168.1.1\",\"HOSTNAME\":\"test\",\"GATEWAY\":\"192.168.1.254\",\"USEFOR\":\"测试\",\"PROPOSER\":\"11\",\"CREATEDATE\":\"2015-11-21\"},");
        sb.append("{\"ID\":\"2\",\"IP\":\"192.168.1.2\",\"HOSTNAME\":\"test\",\"GATEWAY\":\"192.168.1.254\",\"USEFOR\":\"测试\",\"PROPOSER\":\"111\",\"CREATEDATE\":\"2015-11-21\"}");
        sb.append("]}");

        lstIPs.add(sb.toString());
        return lstIPs;
    }

返回json：

 response.getWriter().print(JSONArray.fromObject(qis.getIPSegFromDB(objectID)).toString()); 

鼓捣一晚上了没查出问题来，但是按照下面的格式写到jsp页面里，就能显示出来。。。。求解啊。。。

 var dataGrid = {"total":28,"rows":[
    {"ID":"1","IP":"192.168.1.1","HOSTNAME":"test","GATEWAY":"192.168.1.254","USEFOR":"测试","PROPOSER":"111","CREATEDATE":"2015-11-21"},{"ID":"2","IP":"192.168.1.2","HOSTNAME":"test","GATEWAY":"192.168.1.254","USEFOR":"测试","PROPOSER":"111","CREATEDATE":"2015-11-21"},
    {"ID":"1","IP":"192.168.1.1","HOSTNAME":"test","GATEWAY":"192.168.1.254","USEFOR":"测试","PROPOSER":"111","CREATEDATE":"2015-11-21"},{"ID":"2","IP":"192.168.1.2","HOSTNAME":"test","GATEWAY":"192.168.1.254","USEFOR":"测试","PROPOSER":"111","CREATEDATE":"2015-11-21"}
                           ]};

Answer 1

终于解决了，后台print的方法写的有问题，应该用JSONObject.fromObject（String），不能用JSONArray.fromObject(String)，关闭问题