cdmanageservlet.java

来自「用jsp,tomcat,mysql」· Java 代码 · 共 92 行

package mypack;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.Servlet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class CdManageServlet extends HttpServlet implements Servlet {

	public CdManageServlet() {
		super();
	}


	protected void doGet(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException {
	
		String id =arg0.getParameter("updateid");
		System.out.println(id);
		
		String cdId=null;
		String subject_name=null;
		
		  try{
		Cdstore cdstore=new Cdstore();
		CdDetails mycd = new CdDetails();
		if (id!=null){
			cdId = id;	
			mycd = cdstore.getCdDetails(id);
		}
		HttpSession session = arg0.getSession(true);
		session.setAttribute("cdId",cdId);
		session.setAttribute("title",mycd.getTitle());
		session.setAttribute("name",mycd.getName());
		session.setAttribute("price",mycd.getPrice());
		session.setAttribute("year",mycd.getYear());
		session.setAttribute("description",mycd.getDescription());
		session.setAttribute("saleamount",mycd.getSaleAmount());
		session.setAttribute("warehouse",mycd.getWarehouse());
		session.setAttribute("saletype",mycd.getSaletype());
		arg1.sendRedirect("cdedit.jsp");
	}
	 catch(Exception e){
              }
    
		
	}
	
		protected void doPost(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException {
		
		String delete = arg0.getParameter("delete");
		
		try{
		if (delete!=null)
		{
			CdDetails mycd = new CdDetails();
	    Cdstore cdstore=new Cdstore();
	    String[] check=arg0.getParameterValues("check");
		  if(check !=null)
		  {
		    	for (int i=0;i<check.length;i++)
		    	{
		    		cdstore.deleteCd(check[i]);
		    	}
		  }
		  else
		  {
		    	PrintWriter out = arg1.getWriter();
		    	out.print("<script language='javascript'>");
		    	out.print("alert('please choose the cdid you want to delete!');");
		      out.print("window.location.href='cdmanage.jsp';");
	   	    out.print("</script>");
		    	return;
		  }
		      arg1.sendRedirect("cdmanage.jsp");
		}
		  }
		
		catch(Exception e){
              }
		
	}




}