XStream别名;元素转属性;去除集合属性(剥皮);忽略不需要元素

city

package xstream;

public class City {
    private String name;
    private String description;
    
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getDescription() {
        return description;
    }
    public void setDescription(String description) {
        this.description = description;
    }
    public City(String name, String description) {
        this.name = name;
        this.description = description;
    }
}

province

package xstream;

import java.util.ArrayList;
import java.util.List;

public class Province {
    private String name;
    private List<City> cities = new ArrayList<City>();
    
    public void addCity(City city){
        cities.add(city);
    }
    
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public List<City> getCities() {
        return cities;
    }
    public void setCities(List<City> cities) {
        this.cities = cities;
    }
    public Province(String name, List<City> cities) {
        super();
        this.name = name;
        this.cities = cities;
    }

    public Province() {}

    public Province(String name) {
        this.name = name;
    }
}

　测试类

　

package xstream;

import java.util.ArrayList;
import java.util.List;

import org.junit.Test;

import com.thoughtworks.xstream.XStream;

public class TestXStream {
    public List<Province> getProvinceList(){
        List<Province> provinceList = new ArrayList<Province>();
        
        Province p1 = new Province("北京");
        p1.addCity(new City("东城区","东城区"));
        p1.addCity(new City("西城区","西城区"));
        
        Province p2 = new Province("上海");
        p2.addCity(new City("徐汇区","徐汇区"));
        p2.addCity(new City("浦东新区","浦东新区"));
        
        provinceList.add(p1);
        provinceList.add(p2);
        
        return provinceList;
    }
    //--->原生版
    @Test
    public void fun(){
        List<Province> proList = getProvinceList();
        XStream xStream = new XStream();
        String xml = xStream.toXML(proList);
        System.out.println(xml);
    }

    //--->修改
    @Test
    public void fun1(){
        List<Province> proList = getProvinceList();
        XStream xStream = new XStream();
        
        //别名
        xStream.alias("china", java.util.List.class);
        xStream.alias("province", Province.class);
        xStream.alias("city", City.class);
        
        //把子元素变成父元素的属性
        xStream.useAttributeFor(Province.class, "name");
        
        //去掉容器,"剥皮"
        xStream.addImplicitCollection(Province.class, "cities");
        
        //忽略不需要的属性-xml的元素
        xStream.omitField(City.class, "description");
        
        String xml = xStream.toXML(proList);
        System.out.println(xml);
    }
    
}

　

子元素转换成属性

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去掉集合元素("剥皮")

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忽略不需要的元素