XML解析---利用XStream解析xml数据及反构造Java对象

╰+攻爆jí腚メ 2022-05-24 11:22 246阅读 0赞

XStream 是一个轻量级的、简单易用的开放源代码 Java库，用于将 Java 对象序列化为 XML 或者再转换回来。而且XStream还能将java对象转成其它格式，比如JSon。

**需要用到的包：xstream-1.3.1**

**下载链接：[http://xstream.codehaus.org/download.html][http_xstream.codehaus.org_download.html]**

测试：

新建Person类----

public class Person {
    
    	private String firstname;
    	private String lastname;
    	private PhoneNumber phone;
    	private PhoneNumber fax;
    	
    	public Person(String firstName, String lastName) {
    		this.firstname = firstName;
    		this.lastname = lastName;
    	}
    	public Person() {
    	}
    
    	public String getFirstname() {
    		return firstname;
    	}
    
    	public void setFirstname(String firstname) {
    		this.firstname = firstname;
    	}
    
    	public String getLastname() {
    		return lastname;
    	}
    
    	public void setLastname(String lastname) {
    		this.lastname = lastname;
    	}
    
    	public PhoneNumber getPhone() {
    		return phone;
    	}
    
    	public void setPhone(PhoneNumber phone) {
    		this.phone = phone;
    	}
    
    	public PhoneNumber getFax() {
    		return fax;
    	}
    
    	public void setFax(PhoneNumber fax) {
    		this.fax = fax;
    	}
    }

新建PhoneNumber类：

public class PhoneNumber {
    	private int code;
    	private String number;
    
    	public PhoneNumber(int code, String number) {
    		this.code = code;
    		this.number = number;
    	}
    	public PhoneNumber() {
    		
    	}
    	public int getCode() {
    		return code;
    	}
    
    	public void setCode(int code) {
    		this.code = code;
    	}
    
    	public String getNumber() {
    		return number;
    	}
    
    	public void setNumber(String number) {
    		this.number = number;
    	}
    }

写主方法进行测试：

public class Main {
    	/**
    	 * @kxm
    	 */
    	public static void main(String[] args) {
    		XStream xstream = new XStream(new DomDriver());
    		xstream.alias("person", Person.class);
    		xstream.alias("phonenumber", PhoneNumber.class);
    		Person joe = new Person("Joe", "Walnes");
    		joe.setPhone(new PhoneNumber(123, "1234-456"));
    		joe.setFax(new PhoneNumber(123, "9999-999"));
    		String xml = xstream.toXML(joe);
    		System.out.println(xml);
    
    		Person newJoe = (Person) xstream.fromXML(xml);
    		System.out.println(newJoe.getLastname());
    	}
    }

打印结果：

![20180526095835694][]

[http_xstream.codehaus.org_download.html]: http://xstream.codehaus.org/download.html
[20180526095835694]: /images/20220524/809f921fee57405d8bf403f732d30262.png