0

xml 看起来像：-

 <childrens>
<child_1 entity_id="1" value="Root Catalog" parent_id="0">
<child_2 entity_id="2" value="Navigate" parent_id="1">
    <child_4 entity_id="4" value="Activities" parent_id="2">
        <child_10066 entity_id="10066" value="Physical1" parent_id="4">
            <child_10067 entity_id="10067" value="Cricket" parent_id="10066">
                <child_10068 entity_id="10068" value="One Day" parent_id="10067"/>
            </child_10067>
        </child_10066>
        <child_10069 entity_id="10069" value="Test2" parent_id="4"/>
        <child_10070 entity_id="10070" value="Test3" parent_id="4"/>
        <child_10071 entity_id="10071" value="Test4" parent_id="4"/>
        <child_10072 entity_id="10072" value="Test5" parent_id="4"/>
        <child_5 entity_id="5" value="Physical" parent_id="4"/>
        </child_4>
    <child_4331 entity_id="4331" value="Region" parent_id="2">
        <child_4332 entity_id="4332" value="Asia" parent_id="4331">
            <child_4333 entity_id="4333" value="Afghanistan" parent_id="4332">
                <child_4334 entity_id="4334" value="Balkh" parent_id="4333">
                    <child_4335 entity_id="4335" value="Mazar-e-Sharif" parent_id="4334"/>
                </child_4334>
                <child_4336 entity_id="4336" value="Herat" parent_id="4333">
                    <child_4337 entity_id="4337" value="Herat" parent_id="4336"/>
                </child_4336>
            </child_4333>
        </child_4332>
    </child_4331>
</child_2>
</child_1>
</childrens>

在上面的 xml 文件中，我尝试在不同的变量中获取所有活动和区域。
这个试过了。

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script>
var result_region='';
var node_region;
var comma_region='';
var activity;
var result_activity='';
var node_activity;
var comma_activity='';
var region;
$(document).ready(function(){
$.ajax({ 
                url: 'final.xml', 
                type:"get",
                async: false,
                success: function(xml) { 
                var xPath_region = '//child_4/*[@value]' + '/@value';
                var xPath_activity = '//child_4331/*[@value]' + '/@value';

                var iterator = xml.evaluate(xPath_region, xml.documentElement, null,
                        XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
                    var thisNode = iterator.iterateNext();
                    while (thisNode) {
                    node_region = thisNode.textContent;
                    thisNode = iterator.iterateNext();
                        if(result_region.indexOf(node_region) == -1){
                                result_region += comma_region+node_region;
                                comma_region=',';
                }
            }

            var iterator = xml.evaluate(xPath_activity, xml.documentElement, null,
                        XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
                    var thisNode = iterator.iterateNext();
                    while (thisNode) {
                    node_activity = thisNode.textContent;
                    thisNode = iterator.iterateNext();
                        if(result_activity.indexOf(node_activity) == -1){
                                result_activity += comma_activity+node_activity;
                                comma_activity=',';
                }
            }
            activity = result_region;
            region = result_activity;
            alert(activity);
            alert(region);
            },
            });
});
</script>

以上代码返回：-

var activity = "Physical1,Test2,Test3,Test4,Test5";
var region = "Asia";

它唯一返回第一级节点 b'coz 我在 xpath 上尝试找到Child_4我想要所有子节点和子节点。
喜欢：-

var activity = "Physical1,Cricket,One Day,Test2,Test3,Test4,Test5";
var region = "Asia,Afghanistan,Balkh,Mazar-e-Sharif,Herat,Herat";

我怎样才能获得所有孩子和孩子的子孩子价值。
谢谢。

4

1 回答 1

1

您非常接近：您只需更改两个 xpaht 表达式： 

var xPath_region = '//child_4/*[@value]' + '/@value';
var xPath_activity = '//child_4331/*[@value]' + '/@value';

至：

var xPath_region = '//child_4//*[@value]' + '/@value';
var xPath_activity = '//child_4331//*[@value]' + '/@value';

您只选择了具有 value 属性的 child_4 的直接子代，但您想选择 child_4 ( //child_4/descendant::*) 或 short ( //child_4//*) 的所有后代，这将输出以下区域：

 "Asia,Afghanistan,Balkh,Mazar-e-Sharif,Herat"

和活动：

"Physical1,Cricket,One Day,Test2,Test3,Test4,Test5"
于 2013-05-10T11:58:40.447 回答