Java复制和深复制

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Map;

public class CloneUtils {
	@SuppressWarnings("unchecked")
	public static <T extends Serializable> T clone(T obj){
		
		T clonedObj = null;
		try {
			ByteArrayOutputStream baos = new ByteArrayOutputStream();
			ObjectOutputStream oos = new ObjectOutputStream(baos);
			oos.writeObject(obj);
			oos.close();
			
			ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
			ObjectInputStream ois = new ObjectInputStream(bais);
			clonedObj = (T) ois.readObject();
			ois.close();
			
		}catch (Exception e){
			e.printStackTrace();
		}
		
		return clonedObj;
	}
	
	public static Map deepCopy(Map src) throws IOException, ClassNotFoundException {  
	    ByteArrayOutputStream byteOut = new ByteArrayOutputStream();  
	    ObjectOutputStream out = new ObjectOutputStream(byteOut);  
	    out.writeObject(src);  
	  
	    ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());  
	    ObjectInputStream in = new ObjectInputStream(byteIn);  
	    @SuppressWarnings("unchecked")  
	    Map dest = (Map) in.readObject();  
	    return dest;  
	}  


}