Question

<?xml version="1.0" encoding="UTF-8"?>
<vmext:Notification xmlns:vmext="http://www.vmware.com/vcloud/extension/v1.5" eventId="cd35c994-5e3b-4947-a435-bae3c8886af5" type="com/vmware/vcloud/event/vm/create" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.vmware.com/vcloud/extension/v1.5 http://vcd.hostcenter.dk/api/v1.5/schema/vmwextensions.xsd">
    <vmext:EntityLink rel="entity" id="urn:vcloud:vm:f76c9a4c-b94f-4019-a014-359c8107bc18" name="Windows Server 2016 Datacenter-1" type="vcloud:vm"/>
    <vmext:EntityLink rel="down" id="urn:vcloud:user:3c35fb93-39a2-4fc6-aad7-5d06e138e9e4" name="system" type="vcloud:user"/>
    <vmext:EntityLink rel="up" id="urn:vcloud:org:bb878c05-b433-469f-8d76-5f17b89836de" name="xxxxx.xxx" type="vcloud:org"/>
    <vmext:Timestamp>2017-05-03T17:04:46.311+02:00</vmext:Timestamp>
    <vmext:OperationSuccess>true</vmext:OperationSuccess>
</vmext:Notification>

System.log(myString) <-- the xml data from top
var document = XMLManager.fromString(myString);
var members = document.getElementsByTagName("vmext:EntityLink");
System.log(members.length)

for (i = 0; i < members.length; i++){

System.log(members[i].attributes["ID"].value) 

}

我想从vmext获取所有id：EntityLink我只返回NULL

如果你能帮助我会很开心

Answer 1

这是一个小错字。将以下行中的ID替换为id。

System.log(members[i].attributes["ID"].value)

并且您不需要在查找标记或元素时包含名称空间。所以从下一行中删除vmext：

var members = document.getElementsByTagName("vmext:EntityLink");

这是工作代码，

  <!DOCTYPE html>
        <html>
        <head>
        <style>
        .democlass {
            color: red;
        }
        </style>
        </head>
        <body>

        <h1 class="democlass">Hello World</h1>

        <p>Click the button to display the value of the class attribute of the h1 element.</p>

        <button onclick="myFunction()">Try it</button>

        <p id="demo"></p>

        <script>
        function myFunction() {
            var xml = '<?xml version="1.0" encoding="UTF-8"?>'
        +'<vmext:Notification xmlns:vmext="http://www.vmware.com/vcloud/extension/v1.5" eventId="cd35c994-5e3b-4947-a435-bae3c8886af5" type="com/vmware/vcloud/event/vm/create" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.vmware.com/vcloud/extension/v1.5 http://vcd.hostcenter.dk/api/v1.5/schema/vmwextensions.xsd">'
            +'<vmext:EntityLink rel="entity" id="urn:vcloud:vm:f76c9a4c-b94f-4019-a014-359c8107bc18" name="Windows Server 2016 Datacenter-1" type="vcloud:vm"/>'
            +'<vmext:EntityLink rel="down" id="urn:vcloud:user:3c35fb93-39a2-4fc6-aad7-5d06e138e9e4" name="system" type="vcloud:user"/>'
            +'<vmext:EntityLink rel="up" id="urn:vcloud:org:bb878c05-b433-469f-8d76-5f17b89836de" name="xxxxx.xxx" type="vcloud:org"/>'
            +'<vmext:Timestamp>2017-05-03T17:04:46.311+02:00</vmext:Timestamp>'
            +'<vmext:OperationSuccess>true</vmext:OperationSuccess>'
        +'</vmext:Notification>'

            var document = parseXML(xml)
            var members = 
                    document.getElementsByTagName("vmext:EntityLink");
            console.log(members.length)

            for (i = 0; i < members.length; i++){

                console.log(members[i].attributes["ID"].value) 

            } 
        }
        function parseXML(val) {
            if (document.implementation && 
     document.implementation.createDocument) {
                xmlDoc = new DOMParser().parseFromString(val, 
  'text/xml');
            }
            else if (window.ActiveXObject) {
                xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
                xmlDoc.loadXML(val);
            }
            else
            {
                alert("Your browser can't handle this script");
                return null;
            }
            return xmlDoc;
        }
        </script>

        </body>
        </html>

需要帮助阅读xml @ js

1 个答案: