【www.bbyears.com--php函数】
Java 序列化技术可以使你将一个对象的状态写入一个Byte 流里，并且可以从其它地方把该Byte 流里的数据读出来，重新构造一个相同的对象。
简述：
用字节流的方式，复制Java对象
代码：
流克隆复制函数
代码如下
publicstaticObject deepClone(Object obj){
if(obj ==null){
returnnull;
}
try{
ByteArrayOutputStream byteOut =newByteArrayOutputStream();
Object cloneObj =null;
ObjectOutputStream out =newObjectOutputStream(byteOut);
out.writeObject(obj);
ByteArrayInputStream byteIn =newByteArrayInputStream(byteOut.toByteArray());
ObjectInputStream in =newObjectInputStream(byteIn);
cloneObj = in.readObject();
returncloneObj;
}catch(Exception e) {
thrownewRuntimeException(e);
}
}
ObjectClone.java
代码如下
packagetest;
importjava.io.ByteArrayInputStream;
importjava.io.ByteArrayOutputStream;
importjava.io.ObjectInputStream;
importjava.io.ObjectOutputStream;
importjava.io.Serializable;
publicclassObjectClone {
/**
* 测试对象
*/
privatestaticclassPersonimplementsSerializable {
privateString name;
privateintage;
Person(String name,intage){
this.name = name;
this.age = age;
}
@Override
publicString toString() {
returnString.format("name: %s\nage: %s", name, age);
}
}
/**
* 测试函数
*/
publicstaticvoidmain(String[] args) {
Person person =newPerson("Henry",22);
Person newPerson = (Person)ObjectClone.deepClone(person);
System.out.println(newPerson);
}
/**
* 工具类
*
* @param obj
* @return
*/
publicstaticObject deepClone(Object obj){
if(obj ==null){
returnnull;
}
try{
ByteArrayOutputStream byteOut =newByteArrayOutputStream();
Object cloneObj =null;
ObjectOutputStream out =newObjectOutputStream(byteOut);
out.writeObject(obj);
ByteArrayInputStream byteIn =newByteArrayInputStream(byteOut.toByteArray());
ObjectInputStream in =newObjectInputStream(byteIn);
cloneObj = in.readObject();
returncloneObj;
}catch(Exception e) {
thrownewRuntimeException(e);
}
}
}
测试结果：
