Introduction to JSP

Now lets explore JSP (Java Server Page)

Inoder to understand JSP we have very much understanding of what serverlet is. If you don't have the basic understanding what servlet does . i would recommend review the previous post first and start with this one.So what is a Jsp ?. Before we explore JSP i would like to explain one potential problem of using servlets; to be honest we can develop any web application using servlets we have all required technology to do that so you can capture any user request through url and assign a servlet to handle it and any html code written in servlet .But Creating html code inside servlet is very crucial process means using print writer manipulating a dynamic html page is highly Challenging. We can tackle this situation by using Jsp so that we can write java code inside html code.

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a simple example for jdbc PreparedStatement

a simple example for PreparedStatement package basics.in.java.blogspot.in; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class Main { private static final String USERNAME="root"; private static final String PASSWORD=""; private static final String CONN_STRING="jdbc:mysql://localhost/basicsinjavablogspot"; public static void main(String[] args) throws ClassNotFoundException, SQLException { Class.forName("com.mysql.jdbc.Driver"); Connection conn=null; Statement stmt=null; ResultSet rs=null; try { conn= DriverManager.getConnection(CONN_STRING, USERNAME, PASSWORD); System.out.println("database connection successful"); //stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); String sql="select * fr...

spring boot CORS filter along with spring security and OAuth2 (@EnableOAuth2Sso)

spring boot CORS filter along with spring security and OAuth2 (@EnableOAuth2Sso) import org.springframework.stereotype.Component; import javax.servlet.*; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException;

How to use SQL Exception Methods in java

The following code shows the use of some sqlexception method package basics.in.java.blogspot.in; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class Main { private static final String USERNAME="root"; private static final String PASSWORD=""; private static final String CONN_STRING="jdbc:mysql://localhost/basicsinjavablogspot"; public static void main(String[] args) throws ClassNotFoundException, SQLException { Class.forName("com.mysql.jdbc.Driver"); Connection conn=null; Statement stmt=null; ResultSet rs=null; try { conn= DriverManager.getConnection(CONN_STRING, USERNAME, PASSWORD); System.out.println("database connection successful"); stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); rs=stmt.executeQuery("select stateId,...

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