dbconnexception.java

文章管理系统 用Java开发,以Struts为框架,以Jdbc链接Mysql数据库。系统属性:系统属性设置、留言管理、友情链接管理、网站调查、公告管理 关于我们、版权声明、联系我们

package com.yhcms.db;

import java.io.PrintStream;
import java.io.PrintWriter;
/**
 * <p>Title:数据库操作的各种异常</p>
 * <b>CopyRight: yyhweb[由由华网]</b>
 * @author stephen
 * @version YH-2.0
 */
public class DBConnException extends Exception {

	private static final long serialVersionUID = 1L;

	private Throwable throwable;

    /**
     *  DBConnException 无参数构造函数
     */
    public DBConnException() {
        this.throwable = null;
    }

    /** DBConnException 构造函数
     * @param s
     */
    public DBConnException(String s) {
        super(s);
        this.throwable = null;
    }

    /** DBConnException 构造函数
     * @param throwable
     */
    public DBConnException(Throwable throwable) {
    	this.throwable = null;
    	this.throwable = throwable;
    }

    /** DBConnException 构造函数
     * @param s
     * @param throwable
     */
    public DBConnException(String s, Throwable throwable) {
        super(s);
        this.throwable = null;
        this.throwable = throwable;
    }

    public void printStackTrace() {
        super.printStackTrace();
        if(throwable != null)
            throwable.printStackTrace();
    }

    public void printStackTrace(PrintStream printstream) {
        super.printStackTrace(printstream);
        if(throwable != null)
            throwable.printStackTrace(printstream);
    }

    public void printStackTrace(PrintWriter printwriter) {
        super.printStackTrace(printwriter);
        if(throwable != null)
            throwable.printStackTrace(printwriter);
    }
}