前台jqurey代码

function organDatagrid(){

	$organ_treegrid  = $('#organ_treegrid').treegrid({

    url:ctx+'/petition/petition-info/organ-datagrid',

    fit:true,

    fitColumns:false,//自适应列宽

    striped:true,//显示条纹

    rownumbers:true,//显示行数

    nowrap : false,

    border : false,

    singleSelect:true,

    showFooter : true,

    remoteSort:false,//是否通过远程server对数据排序

/*  sortName:'orderNo',//默认排序字段

    sortOrder:'asc',//默认排序方式 'desc' 'asc' */

    idField : 'id',

    treeField:"name",

/*  frozenColumns:[[

        {field:'name',title:'机构名称',width:200},

        {field:'sysCode',title:'机构系统编码',width:120}

    ]], */

    columns:[[

        {field:'id',title:'主键',hidden:true,sortable:true,align:'right',width:80},

        {field:'name',title:'机构名称',width:400},

        {field:'pcount',title:'信訪数量',width:120},

        {field:'scale',title:'比例',width:120}

    ]]

   }).datagrid('showTooltip');

}

后台业务代码

	@RequestMapping(value = {"organ-datagrid"})

	@ResponseBody

	public Datagrid<Map> getPetitionOrgan(@RequestParam(value = "startTime", required = false)Date startTime,

			@RequestParam(value = "endTime", required = false)Date endTime) throws Exception {

		List<Map> list = null;

                //此处省略业务代码

		Datagrid<Map> dg= new Datagrid<Map>(list.size(), list);

        return dg;

	}	

接收到的数据格式

{

  "total" : 20,

  "columns" : null,

  "rows" : [ {

    "id" : 2,

    "scale" : "58.62%",

    "pcount" : 17,

    "status" : 0,

    "_parentId" : null,

    "name" : "江西省烟草专卖局(公司)"

  }, {

    "id" : 22,

    "scale" : "17.24%",

    "pcount" : 5,

    "status" : 0,

    "_parentId" : 2,

    "name" : "赣州市烟草专卖局(公司)"

  }, {

    "id" : 40,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "章贡区烟草专卖局(分公司)"

  }, {

    "id" : 46,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "赣县烟草专卖局(分公司)"

  }, {

    "id" : 53,

    "scale" : "3.45%",

    "pcount" : 1,

    "status" : 0,

    "_parentId" : 22,

    "name" : "南康市烟草专卖局(分公司)"

  }, {

    "id" : 59,

    "scale" : "3.45%",

    "pcount" : 1,

    "status" : 0,

    "_parentId" : 22,

    "name" : "大余县烟草专卖局(分公司)"

  }, {

    "id" : 65,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "信丰县烟草专卖局(分公司)"

  }, {

    "id" : 72,

    "scale" : "10.34%",

    "pcount" : 3,

    "status" : 0,

    "_parentId" : 22,

    "name" : "上犹县烟草专卖局(分公司)"

  }, {

    "id" : 78,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "崇义县烟草专卖局(分公司)"

  }, {

    "id" : 84,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "安远县烟草专卖局(分公司)"

  }, {

    "id" : 91,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "龙南县烟草专卖局(分公司)"

  }, {

    "id" : 97,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "定南县烟草专卖局(分公司)"

  }, {

    "id" : 103,

    "scale" : "6.9%",

    "pcount" : 2,

    "status" : 0,

    "_parentId" : 22,

    "name" : "全南县烟草专卖局(分公司)"

  }, {

    "id" : 109,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "于都县烟草专卖局(分公司)"

  }, {

    "id" : 114,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "宁都县烟草专卖局(分公司)"

  }, {

    "id" : 121,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "兴国县烟草专卖局(分公司)"

  }, {

    "id" : 128,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "瑞金市烟草专卖局(分公司)"

  }, {

    "id" : 135,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "会昌县烟草专卖局(分公司)"

  }, {

    "id" : 141,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "寻乌县烟草专卖局(分公司)"

  }, {

    "id" : 147,

    "scale" : "0.0%",

    "pcount" : 0,

    "status" : 0,

    "_parentId" : 22,

    "name" : "石城县烟草专卖局(分公司)"

  } ]

}

dataGrid能够不须要用DataGrid类来构造，仅仅需返回list；treeGrid必须返回DataGrid类这种构造数据，才干有树形显现。