jsp MySQL database connectivity

Disclaimer: This presentation is prepared by trainees of
baabtra as a part of mentoring program. This is not official
document of baabtra –Mentoring Partner
Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt .
Ltd

jsp MySQL database connectivity
Shanu k k
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Accessing data in a database or in
other data sources is an important task
in web programming.
data access from JSPs is done through
Java Database Connectivity (JDBC). We
will begin with an introduction to JDBC

Here are the steps required to access data in a database:
Load the JDBC database driver.
Create a connection.
Create a statement.
Create a resultset, if you expect the database server to
send back some data.

 There are two packages in JDBC

• java.sql
• javax.sql
The javax.sql package is the JDBC Optional Package

DriverManager Class
• The DriverManager class is used to obtain a
connection to a database.
• Database servers use their own proprietary protocols
for communication, which are different from each
other. However, we don't need to worry about these
protocols because we can use "translators." These
"translators" come in the form of JDBC drivers
• For an jDBC database, use the following code to load
the driver:
Class.forName("com.mysql.jdbc.Driver");

The Connection Interface
• To access a database, first you need to
establish a connection to the database server.
• Connection connection =
DriverManager.getConnection(url, "root",
"baabtra");
• The most frequently used method of the
Connection interface is createStatement(),
which returns a Statement object for sending
SQL statements to the database.

Statement Interface
the Statement interface method to execute an SQL
statement and obtain the produced results.
Statement statement = connection.createStatement();
The two most important methods of this interface
are executeQuery() and executeUpdate().
The executeUpdate() method executes an SQL
INSERT, UPDATE, or DELETE statement
The executeQuery() method executes an SQL SELECT
statement that returns data.

• <%@ page language="java" contentType="text/html;
charset=ISO-8859-1"
•
pageEncoding="ISO-8859-1"%>
• <%@ page import ="java.sql.*" %>
• <%@ page import ="javax.sql.*" %>
• <html>
• <head>
• <meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
• <title>Front</title>
• </head>
• <body>
• <%

<%

String name=request.getParameter("name");
String password= request.getParameter("pass");
String adress = request.getParameter("address");
String dob=request.getParameter("dob");
String url = "jdbc:mysql://localhost:3306/db_tes";
if(name!="" && password!="" && adress!="" && dob!="") {
try {
String insert = "INSERT INTO tbl_adress(name,password,adress,DOB)" +
"VALUES (? ,?, ?, ?)";
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection(url, "root", "baabtra");
PreparedStatement ps = con.prepareStatement(insert);

ps.setString(1,name);
ps.setString(2,password);
ps.setString(3,adress);
ps.setString(4,dob);
ps.executeUpdate();
con.close();
} catch (Exception ex) {
out.println("error");
}
}

%>

<form action="registration form.jsp" method="POST">
<table>
<tr>
<br> <td>Name</br></td>
<td>
<input type="text" name="name">
</td>
</tr>

<tr>
<br><td>Password</br></td>
<td>
<input type="password" name="pass">
</td>
</tr>

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

<tr>
<br><td>date of birth</br></td>
<td>
<input type="text" name="dob">
</td>
</tr>
<tr>
<br><td>Adress</br></td>
<td>
<textarea name="address"></textarea>
</td>
</tr>
<br>
<tr>
<td><input type="submit" value="register"></td>
</tr>

•
•
•
•

</table>
<br>
<hr>
Already Registered!! To Login <a href="login.jsp">Click
Here</a>
•
<hr>
• </form>

• </body>
• </html>

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Thanks in advance.
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jsp MySQL database connectivity

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