JAVA_利用流克隆List

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import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.io.Serializable;import java.util.ArrayList;import java.util.List;public class Launch {public static void main(String[] args) {List<Bean> beanList = new ArrayList<Bean>();for (int i = 0; i < 10; i++) {Bean bean = new Bean();bean.id = i;beanList.add(bean);}System.out.println();List<Bean> newList = null;try {ByteArrayOutputStream bo=new ByteArrayOutputStream();//1行ObjectOutputStream os = new ObjectOutputStream(bo);os.writeObject(beanList);//3行ByteArrayInputStream bo1 = new ByteArrayInputStream(bo.toByteArray());//1行ObjectInputStream os1 = new ObjectInputStream(bo1);newList = (List<Bean>)os1.readObject();} catch (Exception e) {e.printStackTrace();}for (int i = 0; i < beanList.size(); i++) {Bean oldBean = beanList.get(i);Bean newBean = newList.get(i);System.out.println("old:" + oldBean + "  new:" + newBean);}}}class Bean implements Serializable {private static final long serialVersionUID = 4948388455081444528L;public int id = 0;}

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