我有一个要解析的 xml 示例

 <?xml version="1.0" encoding="utf-8"?>

<Details>
    <detail-a>

        <detail> attribute 1 of detail a </detail>
        <detail> attribute 2 of detail a </detail>
        <detail> attribute 3 of detail a </detail>

    </detail-a>

    <detail-b>
        <detail> attribute 1 of detail b </detail>
        <detail> attribute 2 of detail b </detail>

    </detail-b>


</Details>

我想从这个 xml 编写一个方法，将其解析为 hashmap，键是一个字符串，值是一个字符串列表。

例如:key "detail a"value={"detail a 的属性 1","detail a 的属性 2","detail a 的属性 3"}

等等..

最好的方法是什么？因为我很困惑:\

我走到这一步尝试打印 detail-a 和 detail-b 但我还是一片空白......

public static void main(String[] args) {
    // TODO Auto-generated method stub

    DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();

        DocumentBuilder builder;
        try {
            builder = factory.newDocumentBuilder();
            File f= new File("src/Details.xml");
            Document doc=builder.parse(f);
            Element root=doc.getDocumentElement();
            NodeList children=root.getChildNodes();
            for(int i=0;i<children.getLength();i++)
            {
                Node child=children.item(i);
                if (child instanceof Element)
                {
                    Element childElement=(Element) child;
                    Text textNode=(Text)childElement.getFirstChild();
                    String text=textNode.getData().trim();
                    System.out.println(text);

                }
            }

        } catch (ParserConfigurationException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();   
        } catch (SAXException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

最佳答案

Underscore-java库有一个静态方法 U.fromXmlMap(xmlstring)。 Live example

import com.github.underscore.U;
import java.util.Map;

public class Main {

  public static void main(String[] args) {

    Map<String, Object> map = U.fromXmlMap(
        "<Details>\r\n" + 
        "    <detail-a>\r\n" + 
        "\r\n" + 
        "        <detail> attribute 1 of detail a </detail>\r\n" + 
        "        <detail> attribute 2 of detail a </detail>\r\n" + 
        "        <detail> attribute 3 of detail a </detail>\r\n" + 
        "\r\n" + 
        "    </detail-a>\r\n" + 
        "\r\n" + 
        "    <detail-b>\r\n" + 
        "        <detail> attribute 1 of detail b </detail>\r\n" + 
        "        <detail> attribute 2 of detail b </detail>\r\n" + 
        "\r\n" + 
        "    </detail-b>\r\n" + 
        "\r\n" + 
        "\r\n" + 
        "</Details>");
    
    System.out.println(map);
    // {Details={detail-a={detail=[ attribute 1 of detail a ,  attribute 2 of detail a ,  attribute 3 of detail a ]},
    // detail-b={detail=[ attribute 1 of detail b ,  attribute 2 of detail b ]}}, #omit-xml-declaration=yes}
  }
}

关于java - 如何将xml解析为hashmap？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/27547292/