LibraryManagement/bookreg.jsp at master · Balaji2810/LibraryManagement · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
<%@ 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">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <link rel="stylesheet" href="css/style.css">
</head>

<body style="background:rgba(255,255,255,0.8)">
<%@ page import ="java.sql.*" %>
<%@ page import ="javax.sql.*" %>
<%
//String user=request.getParameter("userid");
//session.putValue("userid",user);
int pwd = Integer.parseInt(request.getParameter("count"));
String fname=request.getParameter("name");
String lname=request.getParameter("author");
String email=request.getParameter("id");
Class.forName("com.mysql.jdbc.Driver");
java.sql.Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/library","root","MYSQL");
Statement st= con.createStatement();
ResultSet rs=st.executeQuery("select * from book where id='"+email+"'");
String msg;
if(rs.next())
{
    pwd+=Integer.parseInt(rs.getString(4));
	st.executeUpdate("update book set="+pwd+" where id='"+email+"'");
	msg="Book Count is increased";
}
else
{
int i=st.executeUpdate("insert into book values ('"+email+"','"+fname+"' ,'"+lname+"','"+pwd+"')");
msg="New Books are Registered in the DataBase";
}

%>

  <div class="form" >

<h1><%=msg%></h1>
<form action="adminpage.jsp">
<button type="submit" class="button"/>Back</button>
</form>
</div>
</body>
</html>