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在Java中,要创建自定义的XML标签,您需要使用XML解析库,例如JAXB(Java Architecture for XML Binding)
@XmlRootElement
注解标记该类,并使用@XmlElement
注解标记其属性。例如,我们创建一个表示“Person”的类:import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement(name = "person")
public class Person {
private String name;
private int age;
@XmlElement(name = "name")
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@XmlElement(name = "age")
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import java.io.StringWriter;
public class XmlConverter {
public static String convertToXml(Person person) {
try {
JAXBContext jaxbContext = JAXBContext.newInstance(Person.class);
Marshaller marshaller = jaxbContext.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
StringWriter stringWriter = new StringWriter();
marshaller.marshal(person, stringWriter);
return stringWriter.toString();
} catch (JAXBException e) {
e.printStackTrace();
return null;
}
}
}
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
import java.io.StringReader;
public class XmlConverter {
// ...convertToXml方法...
public static Person convertFromXml(String xml) {
try {
JAXBContext jaxbContext = JAXBContext.newInstance(Person.class);
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
StringReader stringReader = new StringReader(xml);
return (Person) unmarshaller.unmarshal(stringReader);
} catch (JAXBException e) {
e.printStackTrace();
return null;
}
}
}
现在,您可以使用XmlConverter
类中的方法将Java对象序列化为XML字符串,或将XML字符串反序列化为Java对象。例如:
public class Main {
public static void main(String[] args) {
Person person = new Person();
person.setName("John Doe");
person.setAge(30);
// 将Java对象序列化为XML字符串
String xml = XmlConverter.convertToXml(person);
System.out.println("XML: " + xml);
// 将XML字符串反序列化为Java对象
Person deserializedPerson = XmlConverter.convertFromXml(xml);
System.out.println("Deserialized Person: " + deserializedPerson.getName() + ", " + deserializedPerson.getAge());
}
}
运行此代码将输出以下结果:
XML: <person><age>30</age><name>John Doe</name></person>
Deserialized Person: John Doe, 30
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