JAVA序列化和反序列化XML

转载

mob604756eae43b 2019-04-27 09:00:00

package com.lss.utils;

import java.beans.XMLDecoder;
import java.beans.XMLEncoder;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;

/**
* JAVA序列化和反序列化XML
* <p>
* 属性是包括getter,setter属性生成， 序列化的类必须包括一个公共无參构造函数。
* </p>
* 
* @author kevin LUAN
* 
*/
public class SerializableXmlUtils {
@SuppressWarnings("unchecked")
public static <T> T parserXML(String xml) {
ByteArrayInputStream in = new ByteArrayInputStream(xml.getBytes());
XMLDecoder decoder = new XMLDecoder(new BufferedInputStream(in));
decoder.close();
return (T) decoder.readObject();
  }

public static <T> String formatXML(T entity) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
XMLEncoder encoder = new XMLEncoder(new BufferedOutputStream(out));
encoder.writeObject(entity);
encoder.close();
return out.toString();
  }

public static void main(String[] args) throws Exception {
User user = new User();
user.setId(1);
user.setName("张三丰");
user.setAihao(new String[] { "篮球", "足球" });
user.setStudent(new Student(1, "二年级"));
String xml = formatXML(user);
System.out.println("序列化到XML:\n" + xml);
user = parserXML(xml);
System.out.println("反序列化Bean:\n" + user);
  }
}

# 測试Bean Code

package com.lss.utils;

import java.util.Arrays;

public class User {
private int id;
private String name;
private Student student;
private String aihao[];

@Override
public String toString() {
return "{id:" + id + ",name:" + name + ",student:" + student + ",aihao:" + Arrays.toString(aihao) + "}";
  }

public Student getStudent() {
return student;
  }

public void setStudent(Student student) {
this.student = student;
  }

public int getId() {
return id;
  }

public void setId(int id) {
this.id = id;
  }

public String getName() {
return name;
  }

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

public String[] getAihao() {
return aihao;
  }

public void setAihao(String[] aihao) {
this.aihao = aihao;
  }

}

package com.lss.utils;

public class Student {
private int classId;
private String level;

public Student() {
  }

public Student(int classId, String level) {
this.classId = classId;
this.level = level;
  }

public int getClassId() {
return classId;
  }

public void setClassId(int classId) {
this.classId = classId;
  }

public String getLevel() {
return level;
  }

public void setLevel(String level) {
this.level = level;
  }

@Override
public String toString() {
return "{classId:" + classId + ",level:" + level + "}";
  }
}

#执行測试结果：

序列化到XML:

<?xml version="1.0" encoding="UTF-8"?
>
<java version="1.7.0_45" class="java.beans.XMLDecoder">
<object class="com.koudai.laohuji.service.User">
<void property="aihao">
<array class="java.lang.String" length="2">
<void index="0">
<string>篮球</string>
</void>
<void index="1">
<string>足球</string>
</void>
</array>
</void>
<void property="id">
<int>1</int>
</void>
<void property="name">
<string>张三丰</string>
</void>
<void property="student">
<object class="com.koudai.laohuji.service.Student">
<void property="classId">
<int>1</int>
</void>
<void property="level">
<string>二年级</string>
</void>
</object>
</void>
</object>
</java>