用JAXB将CSV文件转换为JAVA中的分层XML

import java.io.File;
import java.io.FileReader;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import au.com.bytecode.opencsv.CSVReader;

public class CSVtoXMLConverter {
    public static void main(String[] args) {
        try {
            // 创建CSV文件读取器
            CSVReader csvReader = new CSVReader(new FileReader("input.csv"));
            
            // 创建JAXB上下文对象
            JAXBContext context = JAXBContext.newInstance(Person.class);
            
            // 创建根元素
            People people = new People();
            
            // 读取CSV文件数据
            String[] line;
            while ((line = csvReader.readNext()) != null) {
                // 创建Person对象
                Person person = new Person();
                person.setName(line[0]);
                person.setAge(Integer.parseInt(line[1]));
                
                // 将Person对象添加到根元素中
                people.addPerson(person);
            }
            
            // 创建Marshaller对象
            Marshaller marshaller = context.createMarshaller();
            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
            
            // 将根元素序列化为XML文件
            marshaller.marshal(people, new File("output.xml"));
            
            System.out.println("CSV to XML conversion completed successfully.");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

// 定义Person类
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "person")
class Person {
    private String name;
    private int age;

    @XmlElement
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @XmlElement
    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}

// 定义根元素类
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import java.util.ArrayList;
import java.util.List;

@XmlRootElement(name = "people")
class People {
    private List<Person> people;

    public People() {
        people = new ArrayList<>();
    }

    @XmlElement(name = "person")
    public List<Person> getPeople() {
        return people;
    }

    public void addPerson(Person person) {
        people.add(person);
    }
}