newsnotfoundexception.java

来自「基于JSP的家电连锁超市管理系统 数据库也在文件内」· Java 代码 · 共 52 行

package electric.dbs;

import java.io.*;
//继承Exception
public class NewsNotFoundException extends Exception
{
	private Throwable nestedThrowable=null;
	//使用父类的覆盖构造方法
	public NewsNotFoundException()
	{
		super();
	}
	public NewsNotFoundException(String msg)
	{
		super(msg);
	}
	public NewsNotFoundException(String msg,Throwable nestedThrowable)
	{
		super(msg);
		this.nestedThrowable=nestedThrowable;
	}
	public NewsNotFoundException(Throwable nestedThrowable)
	{
		this.nestedThrowable=nestedThrowable;
	}
	//自定义printStackTrace()方法
	public void printStackTrace()
	{
		super.printStackTrace();
		if(nestedThrowable!=null)
		{
			nestedThrowable.printStackTrace();
		}
	}
	public void printStackTrace(PrintStream ps)
	{
		super.printStackTrace(ps);
		if(nestedThrowable!=null)
		{
			nestedThrowable.printStackTrace(ps);
		}
	}
	public void printStackTrace(PrintWriter pw)
	{
		super.printStackTrace(pw);
		if(nestedThrowable!=null)
		{
			nestedThrowable.printStackTrace(pw);
		}
	}
	
}