Javascript Jstree-单击父节点后加载子节点（json）

我想在单击父节点后加载父节点的子节点。 因为有很多孩子，这是保持高性能的唯一方法

现在我明白了

$(function () {
    $.support.cors = true;
    $('#using_json').jstree({
        "plugins": ["themes", "json_data", "dnd", "wholerow"],
            'core': {
            'data': {
                'url': "http://localhost:56311/ProductRESTService.svc/GetCountryList",
                    'dataType': "json"
            }
        }
    });
});

这对于第一个级别很有效。 现在我想从这个URL获取孩子们

“{id}”

我不知道如何才能做到这一点

编辑： 服务GetCountryList生成如下内容：

[{"id":"DE","parent":"#","state":"closed","text":"DE"},
{"id":"GBR","parent":"#","state":"closed","text":"GBR"},
{"id":"SE","parent":"#","state":"closed","text":"SE"}]

[{"id":"SH","parent":"DE","state":"closed","text":"SH"},
{"id":"NRW","parent":"DE","state":"closed","text":"NRW"},
{"id":"LON","parent":"GBR","state":"closed","text":"LON"}]

和GetRegionList

大概是这样的：

[{"id":"DE","parent":"#","state":"closed","text":"DE"},
{"id":"GBR","parent":"#","state":"closed","text":"GBR"},
{"id":"SE","parent":"#","state":"closed","text":"SE"}]

[{"id":"SH","parent":"DE","state":"closed","text":"SH"},
{"id":"NRW","parent":"DE","state":"closed","text":"NRW"},
{"id":"LON","parent":"GBR","state":"closed","text":"LON"}]

使用以下命令：

$(function () {
    $.support.cors = true;
    $('#using_json').jstree({
        "plugins": ["themes", "json_data", "dnd", "wholerow"],
            'core': {
            'data': {
                'url': function (node) {
                    if(node.id === '#') {
                        return "http://localhost:56311/ProductRESTService.svc/GetCountryList";
                    }
                    else {
                        return "http://localhost:56311/ProductRESTService.svc/GetRegionList/" + node.id;
                    }
                },
                'dataType': "json"
            }
        }
    });
});

---

您正在谈论如何做：

var myid='123'；变量url=”http://localhost:56311/ProductRESTService.svc/GetRegionList/“+myid

或者你能澄清一下你的问题吗？看看这里，我猜这就是你需要的。你好，谢谢你的帮助，我尝试了这个，然后得到了父节点，但是当我点击它们时没有发生任何事情。没有子节点。我在第一篇文章中编写了json文件。可能是错误。谢谢谢谢，这帮了大忙。当我将布尔参数子节点添加到节点时，效果很好。谢谢注意，在父节点上，第二次ajax调用需要使用children=true