Week-9 Date:
------------------------------------------------------------------------------------------------------------
AIM: Install a database (Mysql or
Oracle).
Create a table which should contain at least the
following fields: name, password, email-id, phone number (these should hold the
data from the registration form).
Practice 'JDBC' connectivity.
Write a java
program/servlet/JSP to connect to that database and extract data from the
tables and display them. Experiment with various SQL queries.
Insert the details of
the users who register with the web site, whenever a new user clicks the submit
button in the registration page (week2).
DESCRIPTION:
JDBC Driver Types
There are four types of JDBC drivers in use:
Type 1: JDBC-ODBC Bridge
A Type 1 JDBC-ODBC Bridge provides
application developers with a way to access JDBC drivers via the JDBC API. Type
1 JDBC drivers translate the JDBC calls into ODBC calls and then send the calls
to the ODBC driver. Type 1 JDBC drivers are generally used when the database
client libraries need to be loaded on every client machine.
Type 2: Native API/Partly Java
Driver
A Type 2 Native API/Partly Java Driver is a
partial Java driver because it converts JDBC calls into database specific
calls. Type 2 Native API/Partly Java Driver communicates directly with the
database server.
Type 3: Pure Java Driver
A Type 3 Pure Java Driver works in a three
tiered architecture. The JDBC calls are passed via the network to the middle
tier server. This server translates the calls to the database specific native
interface to further request the server. JDBC drivers available from Simba are
Type 3 drivers.
Type 4: Native Protocol Java
Driver
The type 4 driver
is written completely in Java and is hence platform independent. It is
installed inside the Java Virtual Machine of the client. It provides better
performance over the type 1 and 2 drivers as it does not have the overhead of
conversion of calls into ODBC or database API calls. Unlike the type 3 drivers,
it does not need associated software to work.A Type 4
Native Protocol Java Driver converts JDBC calls into the database specific
calls so that the client applications can communicate directly with the server.
PROGRAM:
Registration.html:
<html>
<head>
<title>Registration page</title>
</head>
<body bgcolor="#00FFFf">
<form METHOD="POST" ACTION="register">
<CENTER>
<table>
<center>
<tr> <td> Username </td>
<td><input type="text" name="usr">
</td> </tr>
<tr><td> Password </td>
<td><input type="password" name="pwd">
</td> </tr>
<tr><td>Age</td>
<td><input type="text" name="age">
</td> </tr>
<tr> <td>Address</td>
<td> <input type="text" name="add">
</td> </tr>
<tr> <td>email</td>
<td> <input type="text" name="mail">
</td> </tr>
<tr> <td>Phone</td>
<td> <input type="text" name="phone">
</td> </tr>
<tr> <td colspan=2 align=center> <input
type="submit" value="submit"> </td> </tr>
</center>
</table>
</form>
</body>
Login.html
<html>
<head>
<title>Registration page</title>
</head>
<body bgcolor=pink> <center> <table>
<form METHOD="POST" ACTION="authent">
<tr> <td> Username </td>
<td><input type="text"
name="usr"></td> </tr>
<tr> <td> Password </td>
<td> <input type="password" name="pwd">
</td> </tr>
<tr> <td align=center colspan="2"><input
type="submit" value="submit"></td> </tr>
</table> </center>
</form>
</body>
</html>
Ini.java:
import javax.servlet.*;
import java.sql.*;
import java.io.*;
public class Ini extends GenericServlet
{
private String user1,pwd1,email1;
public void service(ServletRequest req,ServletResponse res) throws
ServletException,IOException
{
user1=req.getParameter("user");
pwd1=req.getParameter("pwd");
email1=req.getParameter("email");
res.setContentType("text/html");
PrintWriter out=res.getWriter();
try
{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection
con=DriverManager.getConnection("jdbc:oracle:thin:@195.100.101.158:1521:cclab","scott","tiger");
PreparedStatement
st=con.prepareStatement("insert into personal values(?,?,?,?,?,?)");
st.setString(1,user1);
st.setString(2,pwd1);
st.setString(3,"25");
st.setString(4,"hyd");
st.setString(5,email1);
st.setString(6,"21234");
st.executeUpdate();
con.close();
}
catch(SQLException s)
{ out.println("not found
"+s);
}
catch(ClassNotFoundException c)
{
out.println("not found
"+c);
}
} }
web.xml:
<web-app>
<servlet>
<servlet-name>init1</servlet-name>
<servlet-class>Ini</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>init1</servlet-name>
<url-pattern>/regis</url-pattern>
</servlet-mapping>
</web-app>
OUTPUT:
 |
| http://wikibrand.blogspot.in |
 |
| http://wikibrand.blogspot.in |
 |
| http://wikibrand.blogspot.in |
 |
| http://wikibrand.blogspot.in |
 |
| http://wikibrand.blogspot.in |
 |
| http://wikibrand.blogspot.in |
 |
| http://wikibrand.blogspot.in |
 |
| http://wikibrand.blogspot.in |
RESULT:
Thus a table is created and the
details are entered into the table using jdbc from the registration form
successfully.
SOURCE:PVPSIT FOR JNTU
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