Unmarshaller解析xml文件

Posted 2020-11-03

参考地址：http://linbulu.iteye.com/blog/2295919

Girl.xml文件

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>  
<root>
	<girl>
		<name>lily</name>
		<age>18</age>
	</girl>
	<girl>
		<name>lucy</name>
		<age>20</age>
	</girl>
	<girl>
		<name>lisa</name>
		<age>17</age>
	</girl>
</root>

　　创建Girl.java类，另一种映射方法参考地址：https://blog.csdn.net/hongweigg/article/details/6764237

import java.util.List;

import javax.xml.bind.annotation.*;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "root")
public class Girl {
    @XmlElement(name = "name")
    private String name;

    @XmlElement(name = "age")
    private String age;
    
    @XmlElement(name = "girl")
    private List<Girl> girlList;

    public String toString() {
        StringBuilder sb = new StringBuilder();
        for (Girl girl : girlList) {
            sb.append(girl.toString());
        }
        return sb.toString();
    }

    public String getAge() {
        return age;
    }

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

    public String getName() {
        return name;
    }

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

    public List<Girl> getGirlList() {
        return girlList;
    }

    public void setGirlList(List<Girl> girlList) {
        this.girlList = girlList;
    }
    
}

　　测试类

import java.io.File;
import java.util.List;
import javax.xml.bind.*;

public class TestUnm {
    public static void main(String[] args) {
        try {
            File file=new File("E:\\app\\Girl.xml");
            JAXBContext jaxbC = JAXBContext.newInstance(Girl.class);  
            Unmarshaller us = jaxbC.createUnmarshaller();  
            Girl girl=(Girl)us.unmarshal(file);  
            List<Girl> list=girl.getGirlList();
            for(Girl ele:list){
                System.out.println("name:"+ele.getName());
                System.out.println("age:"+ele.getAge());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

　　控制台输出结果

name:lily
age:18
name:lucy
age:20
name:lisa
age:17