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Maven

    
        
     
      com.thoughtworks.xstream
         
     
      xstream
         
     
      1.4.10
     
    

初始化XStream

XStream xstream = new XStream();

指定别名

// 类xstream.alias("student", Student.class);// 字段xstream.aliasField("name", Student.class, "studentName");// 隐式集合xstream.addImplicitCollection(Student.class, "notes");// 属性xstream.useAttributeFor(Student.class, "studentName");xstream.aliasField("name", Student.class, "studentName");// 包xstream.aliasPackage("my.company.xstream", "com.yiibai.xstream");

注解

使用注解前，需要先设置XStream

xstream.processAnnotations(Note.class);    或xstream.autodetectAnnotations(true);

// 类、字段@XStreamAlias("student")// 隐式集合@XStreamImplicit// 属性@XStreamAlias("name")@XStreamAsAttribute

对象流

ObjectOutputStream objectOutputStream = xstream.createObjectOutputStream(new FileOutputStream("test.txt"));objectOutputStream.writeObject(student1);objectOutputStream.writeObject(student2);objectOutputStream.writeObject(student3);objectOutputStream.writeObject(student4);objectOutputStream.writeObject("Hello World");objectOutputStream.close();ObjectInputStream objectInputStream = xstream.createObjectInputStream(new FileInputStream("test.txt"));Student student5 = (Student) objectInputStream.readObject();Student student6 = (Student) objectInputStream.readObject();Student student7 = (Student) objectInputStream.readObject();Student student8 = (Student) objectInputStream.readObject();String text = (String) objectInputStream.readObject();System.out.println(student5);System.out.println(student6);System.out.println(student7);System.out.println(student8);System.out.println(text);

自定义转换器

使用前需要设置XStream：

xstream.registerConverter(new StudentConverter());

示例：

class StudentConverter implements Converter {    public void marshal(Object value, HierarchicalStreamWriter writer, MarshallingContext context) {        Student student = (Student) value;        writer.startNode("name");        writer.setValue(student.getName().getFirstName() + "," + student.getName().getLastName());        writer.endNode();    }    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {        reader.moveDown();        String[] nameparts = reader.getValue().split(",");        Student student = new Student(nameparts[0], nameparts[1]);        reader.moveUp();        return student;    }    public boolean canConvert(Class object) {        return object.equals(Student.class);    }}

canConvert - 检查支持的对象类型的序列化。

marshal - 序列化对象到XML。

unmarshal - 从XML对象反序列化

解决控制台报错Security framework of XStream not initialized, XStream is probably vulnerable.

XStream.setupDefaultSecurity(xstream);

解决com.thoughtworks.xstream.security.ForbiddenClassException异常

Class
    [] classes = new Class[] { Student.class, Note.class };xstream.allowTypes(classes);

参考资料