deleteaction.java

struts的一个入门例子,struts的一个入门例子!

// Created by Xslt generator for Eclipse.
// XSL :  not found (java.io.FileNotFoundException:  (Bad file descriptor))
// Default XSL used : easystruts.jar$org.easystruts.xslgen.JavaClass.xsl

package net.javafan.guestbook.action;

import java.sql.SQLException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.javafan.guestbook.dboperator.DBConn;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/** 
 * DeleteAction.java created by EasyStruts - XsltGen.
 * http://easystruts.sf.net
 * created on 09-11-2004
 * 
 * XDoclet definition:
 * @struts:action validate="true"
 * @struts:action-forward name="/index.jsp" path="/index.jsp"
 */
public class DeleteAction extends Action {

	// --------------------------------------------------------- Instance Variables

	// --------------------------------------------------------- Methods

	/** 
	 * Method execute
	 * @param ActionMapping mapping
	 * @param ActionForm form
	 * @param HttpServletRequest request
	 * @param HttpServletResponse response
	 * @return ActionForward
	 * @throws Exception
	 */
	public ActionForward execute(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response)
		throws Exception {
			DBConn db = new DBConn();
			int id = Integer.parseInt(request.getParameter("id"));
			try{
				db.executeUpdate("delete from guestbook where id = " + id);
			}catch(SQLException ex){
				System.out.print("Delete Data Error:" + ex.getMessage());
			}finally{
				db.CloseConn();
			}
		return (mapping.findForward("delok"));
	}

}