$.ajax({
  url : "/demo/initTree",data : {payFreq:payFreq,fyType:fyType,setHzType:setHzType
  },success: function(object){
    var nodes = "";
    //拼接simple格式的json字符串
    $.each(object.data,function(i,item) {
     nodes+="{id:'"+item.id+"',pId:'"+item.pid+"',name:'"+item.name+"',isParent:'"+item.isParent+"'},";
    });
    var zNodes = "["+nodes+"]";
    var json = eval('(' + zNodes + ')'); 
    //console.log(json);
    zTreeInit(json);
  }
});

}
/ 初始化树 /
function zTreeInit(json) {
$.fn.zTree.init($("#treeDemo"),json);
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
//全部展开
zTree.expandAll(true);
//Y代表勾选时,N代表取消勾选 p代表父节点,s代表字节点
setting.check.chkboxType = { "Y" : "ps","N" : "ps" };

}