📄 auctionservlet.java
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import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.rmi.*;
import javax.naming.*;
import java.util.*;
public class AuctionServlet extends HttpServlet
{
Connection con;
PrintWriter pw;
public void init(ServletConfig sc) throws ServletException
{
try
{
super.init(sc);
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:auction","auction","auction");
}catch(Exception ce) { ce.printStackTrace();}
}
public void doGet(HttpServletRequest req,HttpServletResponse res) throws ServletException,IOException
{
res.setContentType("text/html");
pw=res.getWriter();
try{
pw.println("<BODY bgColor=#a3d881 leftMargin=0 topMargin=0 MARGINHEIGHT=0 MARGINWIDTH=0><!-- ImageReady Slices (Untitled-1) -->");
pw.println("<DIV id=Layer1 style='Z-INDEX: 1; LEFT: 410px; WIDTH: 328px; POSITION: absolute; TOP: 65px; HEIGHT: 35px'>");
pw.println("<FORM name=form1 action='./SearchServlet' method=post ><INPUT name=sstring> ");
pw.println("<SELECT name=category > <option >Choose Category</option>");
pw.println("<OPTION>Electronics</OPTION> <OPTION>Computers</OPTION> ");
pw.println(" <OPTION>Mobiles</OPTION> <OPTION>Jewellery</OPTION> <OPTION>Art & ");
pw.println(" Collections</OPTION> <OPTION>Home & Life</OPTION> ");
pw.println("<OPTION>Travel</OPTION></SELECT> <INPUT type=submit value=Go > ");
pw.println("</FORM></DIV><!-- End ImageReady Slices -->");
pw.println("<TABLE cellSpacing=0 cellPadding=0 width=781 border=0>");
pw.println(" <TBODY> <TR> <TD width=340 rowSpan=5><IMG height=100 alt='' src='./home_files/name-copy_01.gif' width=340></TD>");
pw.println(" <TD colSpan=2 rowSpan=3><IMG height=69 alt='' src='./home_files/name-copy_02.gif' width=81></TD>");
pw.println(" <TD colSpan=12><IMG height=39 alt='' src='./home_files/name-copy_03.gif' width=359></TD>");
pw.println(" <TD width=20><IMG height=39 alt='' src='./home_files/spacer.gif' width=1></TD></TR>");
pw.println(" <TR> <TD width=51><A href='./home.htm'><IMG height=12 alt='' src='./home_files/name-copy_04.gif' width=51 border=0></A></TD>");
pw.println(" <TD width=4><IMG height=12 alt='' src='./home_files/name-copy_05.gif' width=4></TD>");
pw.println(" <TD width=55><A href='./login.htm'><IMG height=12 alt='' src='./home_files/name-copy_06.gif' width=55 border=0></A></TD>");
pw.println(" <TD width=4><IMG height=12 alt='' src='./home_files/name-copy_07.gif' width=4></TD>");
pw.println(" <TD width=65><A href='./registration.htm'><IMG height=12 alt='' src='./home_files/name-copy_08.gif' width=65 border=0></A></TD>");
pw.println(" <TD width=7><IMG height=12 alt='' src='./home_files/name-copy_09.gif' width=7></TD>");
pw.println(" <TD width=40><A href='./sell.htm'><IMG height=12 alt='' src='./home_files/name-copy_10.gif' width=40 border=0></A></TD>");
pw.println(" <TD width=5><IMG height=12 alt='' src='./home_files/name-copy_11.gif' width=5></TD>");
pw.println(" <TD width=46><A href='./help.htm'><IMG height=12 alt='' src='./home_files/name-copy_12.gif' width=46 border=0></A></TD>");
pw.println(" <TD width=6><IMG height=12 alt='' src='./home_files/name-copy_13.gif' width=6></TD>");
pw.println(" <TD width=64><IMG height=12 alt='' src='./home_files/name-copy_14.gif' width=64></TD>");
pw.println(" <TD width=12><IMG height=12 alt='' src='./home_files/name-copy_15.gif' width=12></TD>");
pw.println(" <TD><IMG height=12 alt='' src='./home_files/spacer.gif' width=1></TD></TR>");
pw.println(" <TR> <TD colSpan=12 rowSpan=3><IMG height=49 alt='' src='./home_files/name-copy_16.gif' width=359></TD>");
pw.println(" <TD><IMG height=18 alt='' src='./home_files/spacer.gif' width=1></TD></TR>");
pw.println(" <TR> <TD width=60><IMG height=16 alt='' src='./home_files/name-copy_17.gif' width=60></TD>");
pw.println(" <TD width=21 rowSpan=2><IMG height=31 alt='' src='./home_files/name-copy_18.gif' width=21></TD>");
pw.println(" <TD><IMG height=16 alt='' src='./home_files/spacer.gif' width=1></TD></TR> <TR>");
pw.println(" <TD><IMG height=15 alt='' src='./home_files/name-copy_19.gif' width=60></TD>");
pw.println(" <TD><IMG height=15 alt='' src='./home_files/spacer.gif' width=1></TD></TR></TBODY></TABLE><br><br>");
Statement st=con.createStatement();
String bidder=req.getParameter("bidder");
String pwd=req.getParameter("password");
String amount=req.getParameter("amount");
if(amount.length()>0)
{
int amt=Integer.parseInt(amount);
String id=req.getParameter("id");
int hbid=Integer.parseInt(req.getParameter("hbid"));
int min=Integer.parseInt(req.getParameter("min"));
ResultSet rs=st.executeQuery("select pwd from uinfo_master where uname='"+bidder+"' ");
if(rs.next())
{
String dpwd=rs.getString(1);
if(!pwd.equals(dpwd))
pw.println("<center><b>in valid password</b></center><br<br>");
else if(amt>=(hbid+min))
{
Statement stmt=con.createStatement();
ResultSet rst=stmt.executeQuery("select enddate from item_master where itemid='"+id+"' ");
rst.next();
java.sql.Date dt=rst.getDate(1);
Statement stmt2=con.createStatement();
ResultSet rst1=stmt2.executeQuery("select sysdate from dual");
rst1.next();
java.sql.Date dt1=rst1.getDate(1);
java.util.StringTokenizer stok=new java.util.StringTokenizer(dt.toString(),"-");
StringTokenizer token=new StringTokenizer(dt.toString(),"-");
int year=Integer.parseInt(token.nextToken());
int month=Integer.parseInt(token.nextToken());
int day=Integer.parseInt(token.nextToken());
StringTokenizer token1=new StringTokenizer(dt1.toString(),"-");
int year1=Integer.parseInt(token1.nextToken());
int month1=Integer.parseInt(token1.nextToken());
int day1=Integer.parseInt(token1.nextToken());
if((year >= year1))
{
if((month >= month1))
{
if((day >= day1))
{
Statement stmt1=con.createStatement();
int i=stmt1.executeUpdate("insert into bidding_info values('"+bidder+"',"+amt+",'"+id+"',sysdate) ");
Statement stm1=con.createStatement();
stm1.executeUpdate("update item_master set bidcnt=bidcnt+1 where itemid='"+id+"' ");
pw.println("<center><b>congratulations u have sucessfully bid for the item</b><br<br></center>");
}
else
{
pw.println("<center><b>auction is closed a "+(day1-day)+" day before</b><br<br></center>");
}
}
else
{
pw.println("<center><b>auction closed a "+(month1-month)+" month before</b><br<br></center>");
}
}
else
{
pw.println("<center><b>auction closed a "+(year1-year)+" year before</b><br<br></center>");
}
}
else
{
pw.println("<center><b>bid more than current value + mininmum increament</b><br<br></center>");
}
}
else
{
pw.println("<center><b>User Name doesnot exist</b></center><br<br>");
}
}
else
{
pw.println("<br><center>specify the bid amount</center>");
}
}catch(NumberFormatException ne) { pw.println("<br><b><center>enter a numeric value</center></b><br><br>");
}catch(Exception e) { e.printStackTrace(); }
pw.println("<br><br><br><CENTER><STRONG></STRONG>");
pw.println("<A href=./NewToday>New Items</A><STRONG></STRONG>");
pw.println("<A href=./EndToday>Closing Items</A>");
pw.println("<STRONG></STRONG><A href=./sell.htm>Sell Items</A>");
pw.println("<STRONG></STRONG><A href=./home.htm>Home</A>");
}
}⌨️ 快捷键说明
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