My brother Ravi Tamada request one mail about his college presentation. He is planning to do web dynamic project. So i am giving small explanation about JSP (Java Server Pages) to Mysql Connection structure, Tomcat directory structure and simple database examples.
Login.html
Code :
<body>
<form action="login.jsp" method="post">
User name :<input type="text" name="usr" />
password :<input type="password" name="pwd" />
<input type="submit" />
<form action="login.jsp" method="post">
User name :<input type="text" name="usr" />
password :<input type="password" name="pwd" />
<input type="submit" />
</form>
</body>Reg.html
code:
<form action="reg.jsp" method="post">
Email :<input type="text" name="email" />
First name :<input type="text" name="fname" />
Last name :<input type="text" name="lname" />
User name :<input type="text" name="userid" />
password :<input type="password" name="pwd" />
<input type="submit" />
</form>
Mysql Create Database Test:
Mysql no doubt about it best open source database http://mysql.com/
Create Table Users:
login.jsp
<%@ page import ="java.sql.*" %>
<%@ page import ="javax.sql.*" %>
<%
String userid=request.getParameter("user");
session.putValue("userid",userid);
String pwd=request.getParameter("pwd");
Class.forName("com.mysql.jdbc.Driver");
java.sql.Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/
test","root","root");
Statement st= con.createStatement();
ResultSet rs=st.executeQuery("select * from users where user_id='"+userid+"'");
if(rs.next())
{
if(rs.getString(2).equals(pwd))
{
out.println("welcome"+userid);
}
else
{
out.println("Invalid password try again");
}
}
else
%>
reg.jsp
<%@ page import ="java.sql.*" %>
<%@ page import ="javax.sql.*" %>
<%
String user=request.getParameter("userid");
session.putValue("userid",user);
String pwd=request.getParameter("pwd");
String fname=request.getParameter("fname");
String lname=request.getParameter("lname");
String email=request.getParameter("email");
Class.forName("com.mysql.jdbc.Driver");
java.sql.Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test",
"root","root");
Statement st= con.createStatement();
ResultSet rs;
int i=st.executeUpdate("insert into users values ('"+user+"','"+pwd+"','"+fname+"',
'"+lname+"','"+email+"')");
%>
welcome.jsp
<%@ page import ="java.sql.*" %>
<%@ page import ="javax.sql.*" %>
<%
String user=session.getValue("userid").toString();
%>
Registration is Successfull. Welcome to <%=user %>
Tomcat Directory Structure
Tomcat open source web server you can download from this link http://tomcat.apache.org/
Run Your Project
1 comments:
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