by Dinesh Thakur Category: Servlet with MySql Database

The Function 'DATE_FORMAT' will use to see the format of the date.

First i make a table in database named 'dbase' within the reference of mySql(php myAdmin). Then i import all the required java packages from the java library. Then i made a class named 'MySqlDateFormat' which extends 'HttpServlet'. Then after i use service()Mehod which will get the request from the doGet()Method. Then i loaded all the require drivers for the database accessing. Here i declare the variables like 'connection' this variable will take over to create a link between a database and the java code. The other i declare 'resultSet' this will use to fetch the value from the columns and the rows from selected table. Then i declare the 'preparedStatement' this variable will execute the selected query like executeQuery() as (Select DATE_FORMAT(NOW(),'%W, %M %e, %Y')). I here use doGet()Method that will bring the output on the web browser.

On the web Browser i use 'HTML' tags that will represent the output in tabular form.

EXAMLPE

 
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class MySqlDateFormat extends HttpServlet
 {
     public void service(HttpServletRequest rq, HttpServletResponse rp)throws IOException, ServletException
       {
           rp.setContentType("text/html");
           PrintWriter disp = rp.getWriter();
           String driver = "com.mysql.jdbc.Driver";
           String url = "jdbc:mysql://localhost/dbase";
           String uid = "root";
           String psw = "root";
           Connection con=null;
           PreparedStatement ps = null;
           ResultSet rs;
           try
            {
                Class.forName(driver);
                con = DriverManager.getConnection(url,uid,psw);
                ps=con.prepareStatement("Select DATE_FORMAT(NOW(),'%W, %M %e, %Y')");
                rs = ps.executeQuery();
             String title = "Date Format";
               String docType ="<!doctype html public \"-//w3c//dtd html 4.0 " + "transitional//en\">\n";
             disp.println(docType + "<html>\n" + "<head><title>" + title + "</title></head>\n" +
                "<body bgcolor=\"#f4efef\">\n" + "<h1 align=\"center\">" + title + "</h1>\n" + "<ul>\n" +
              "<table width=\"50%\" border=\"1\" align=\"center\">\n" + "<th>Date Formating </th>\n"+ "</body> </html>");
                while(rs.next())
                  {
                      String curr = rs.getString(1);
                   disp.println("<tr><td align=\"center\">" + curr +"</td></tr>" );  
                  }     
            }         
                   catch(Exception e) 
                       {
                         e.printStackTrace();
                       }
                         disp.close();
         }
                           public void doPost(HttpServletRequest rq,HttpServletResponse rp)throws IOException,ServletException
                              {
                               doGet(rq,rp);
                              }
 }
 
WEB.XML
 
<servlet>
   <servlet-name>MySqlDateFormat</servlet-name>
   <servlet-class>MySqlDateFormat</servlet-class>
</servlet>
<!-- servlet mapping -->
<servlet-mapping>
   <servlet-name>MySqlDateFormat</servlet-name>
   <url-pattern>/MySqlDateFormat</url-pattern>
</servlet-mapping>




About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.



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