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SBI_Interface2.jsp
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<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ page
import="java.sql.*"
import = "java.io.*"
import = "java.util.*"
import = "javax.sql.*"
import = "java.sql.ResultSet"
import = "java.sql.Statement"
import = "java.sql.Connection"
import = "java.sql.DriverManager"
import = "java.sql.SQLException"
%>
<%!
String[] billname;
String balance;
String Ref_ID;
%>
<%
Connection con = null;
PreparedStatement ps1 = null;
PreparedStatement ps2 = null;
ResultSet rs1 = null;
String driverName = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/project";
String user = "root";
String dbpsw = "robert8472";
String sql="select * from sbiinfo where ref_id="+session.getAttribute("id");
try
{
java.lang.Class.forName(driverName + "");
con = DriverManager.getConnection(url,user,dbpsw);
Statement stmt = con.createStatement();
ps2 = con.prepareStatement("update sbiinfo set balance = ? where ref_id="+session.getAttribute("id"));
ps1 = con.prepareStatement(sql);
rs1 = ps1.executeQuery(sql);
if(rs1.next())
{
Ref_ID = rs1.getString("ref_id");
balance = rs1.getString("balance");
}
else
response.sendRedirect("error.jsp");
rs1.close();
ps1.close();
}
catch(SQLException sqe)
{
out.println(sqe);
}
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title> Payment Interface </title>
</head>
<body>
<%
int total = Integer.parseInt(request.getParameter("Update"));
int SBIbalance = Integer.parseInt(balance);
String[] billname = request.getParameterValues("BillName");
%>
<%
for(int i=0;i<billname.length;i++)
{
%>
<form action="Payment_Success2.jsp" method="get">
<input name="BillName" type="hidden" value=<%=billname[i] %>>
<input type="submit" value="Submit">
</form>
<% } %>
<%
session.setAttribute("BillName",billname);
if(SBIbalance>=total)
{
ps2.setInt(1,SBIbalance-total);
ps2.executeUpdate();
response.sendRedirect("Payment_Success2.jsp");
}
%>
</body>
</html>