如何在 java 上获取根节点属性

2022-09-04 05:45:38

我有一个xml文件,如下所示。我想获取药店节点的纬度和经度属性。我可以获取 chilnodes 属性,但无法获得根节点属性。我是java和xml的新手。我找不到解决方案。

<pharmacies Acc="4" latitude="36.8673380" longitude="30.6346640" address="Ayujkila">
        <pharmacy name="sadde" owner="" address="dedes" distance="327.000555668" phone="342343" lat="36.8644" long="30.6345" accuracy="8"/>
        <pharmacy name="Sun " owner="" address="degerse" distance="364.450016586" phone="45623" lat="36.8641" long="30.6353" accuracy="8"/>
        <pharmacy name="lara" owner="" address="freacde" distance="927.262190129" phone="564667" lat="36.8731" long="30.6422" accuracy="8"
    <end/>
    </pharmacies>

这是我的代码部分。我从网址地址获取xml文件。

                    DocumentBuilderFactory dbf =DocumentBuilderFactory.newInstance();
                 DocumentBuilder db = dbf.newDocumentBuilder();
                 Document doc = db.parse(new InputSource(url.openStream()));
                 doc.getDocumentElement().normalize();
                    NodeList nodeList =doc.getElementsByTagName("pharmacy");
                 for (int i = 0; i < nodeList.getLength(); i++){
                      Node node =nodeList.item(i);
                      Element fstElmnt = (Element) node;
                      NodeList pharmacyList = fstElmnt.getElementsByTagName("pharmacy");
                      Element pharmacyElement = (Element) pharmacyList.item(0);
              Element pharmacyElement = (Element) pharmacyList.item(0);

              HashMap<String,String>map=new HashMap<String,String>();                   
              map.put("name", pharmacyElement.getAttribute("name"));
              map.put("distance", pharmacyElement.getAttribute("phone"));
              list.add(map);

              latt.add(pharmacyElement.getAttribute("lat"));

                    ....

答案 1

元素本身可以使用以下命令获得<pharmacies>

Element pharmacies = doc.getDocumentElement();

您可以从中获取属性。


答案 2

doc.getDocumentElement()将返回根元素,您可以像调用任何其他元素一样调用它。getAttribute( attrName )


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