filemanage.java

来自「在线的java web 做的 学生选课系统。自己做的。大家可以一起讨论。」· Java 代码 · 共 46 行

package edu.test.demo;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
public class FileManage {
	
	public static void addObject(Object o,String filename) throws IOException
	{  File f=new File(filename);
		FileOutputStream fos=new FileOutputStream(f);
		ObjectOutputStream os=new ObjectOutputStream(fos);
		try
		{
			os.writeObject(o);
			os.close();
		}
	catch(Exception e)
	{
		e.printStackTrace();
	}

	}
	public static Object findObject(String filename) throws IOException
			{File f=new File(filename);
			Object	 o=null;
			FileInputStream fos=new FileInputStream(f);
			ObjectInputStream os=new ObjectInputStream(fos);
			try
			{
			 o=os.readObject();
				os.close();
			}
			catch(Exception e)
			{
				e.printStackTrace();
			}
			
			return o;
}


}