Xstream 生成xml时怎么保留空节点

Question

Xstream 生成xml时怎么保留空节点

Answer 1

只需要在定义bean时给每一个成员变量赋一个空字符串的默认值，举个例子：

@XStreamAlias("person")
public class Person {
	
	@XStreamAlias("name")
	private String name="";
	
	@XStreamAlias("sex")
	private String sex="";

	public String getName() {
		return name;
	}

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

	public String getSex() {
		return sex;
	}

	public void setSex(String sex) {
		this.sex = sex;
	}

}

main方法

public class PersonTest {

        public static void main(String[] args) {
                Person person = new Person();
                person.setName("hehe");

                XStream xStream = new XStream(new DomDriver());
                xStream.processAnnotations(Person.class);
                System.out.println(xStream.toXML(person));
        }

输出结果：

<person>
  <name>hehe</name>
  <sex></sex>
</person>