RESTful Web 服务：尝试使用自定义 XML 实现 HATEOAS

使用自定义 XML 实现 HATEOAS 的 RESTful Web 服务

java
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
public class HATEOASExample {
  public static void main(String[] args) {
    try {
      DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
      DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
      Document doc = dBuilder.newDocument();
      // 创建根元素
      Element rootElement = doc.createElement("resource");
      doc.appendChild(rootElement);
      // 添加资源属性
      Element propertyElement = doc.createElement("property");
      propertyElement.setAttribute("name", "name");
      propertyElement.setTextContent("John");
      rootElement.appendChild(propertyElement);
      // 添加操作链接
      Element linkElement = doc.createElement("link");
      linkElement.setAttribute("rel", "edit");
      linkElement.setAttribute("href", "/resource/1/edit");
      rootElement.appendChild(linkElement);
      // 将 XML 输出到控制台
      TransformerFactory transformerFactory = TransformerFactory.newInstance();
      Transformer transformer = transformerFactory.newTransformer();
      DOMSource source = new DOMSource(doc);
      StreamResult result = new StreamResult(System.out);
      transformer.transform(source, result);
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}