XML文件转JAVA对象(JDK17)

1. 项目创建

   项目以JDK17为例，将项目的pom.xml转为JAVA对象。

   
2. JDK17

   JDK9+已经移除了JAXB库，而在JDK8中是默认包含的，在Java9或更高版本中，需要手动添加JAXB的依赖。
   
   
   	jakarta.xml.bind
   	jakarta.xml.bind-api
   	4.0.0
   

3. pom.xml

   
   
   	com.sun.xml.bind
   	jaxb-impl
   	4.0.0
   
   
   
   	jakarta.xml.bind
   	jakarta.xml.bind-api
   	4.0.0
   

4. 插件安装

   Ctrl+Alt+S-->插件-->Web Services

   
5. 生成XSD

   选中pom.xml-->工具-->XML操作-->从XML文件生成XSD架构

   
   
   
6. 生成JAVA

   选中pom.xsd-->工具-->XML操作-->使用JAXB从XML架构生成Java代码

   

   软件包前缀为生成Java类的包路径，SDK选择JDK17，与项目保持一致

   
   
7. 转化测试

   @SpringBootTest
   class XsdApplicationTests {
   
   	@Test
   	void contextLoads() {
   		try {
   			Unmarshaller unmarshaller = JAXBContext.newInstance(ObjectFactory.class).createUnmarshaller();
   			InputStream stream = new FileInputStream(new File("D:\\xsd\\pom.xml"));
   			JAXBElement element = (JAXBElement) unmarshaller.unmarshal(stream);
   			ProjectType project = element.getValue();
   			System.out.println("------------------");
   		} catch (Exception e) {
   			// TODO Auto-generated catch block
   			e.printStackTrace();
   		}
   	}
   
   }

   

8. Apipost测试

   @RestController
   @RequestMapping("/xsd")
   public class XsdController {
   
       @GetMapping("/importXsd")
       public void importXsd(@RequestParam("file") MultipartFile file) {
           try {
               Unmarshaller unmarshaller = JAXBContext.newInstance(ObjectFactory.class).createUnmarshaller();
   //            InputStream stream = new FileInputStream(new File("D:\\xsd\\pom.xml"));
               InputStream stream = file.getInputStream();
               JAXBElement element = (JAXBElement) unmarshaller.unmarshal(stream);
               ProjectType project = element.getValue();
               System.out.println("------------------");
           } catch (Exception e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
           }
       }
   
   }