This function will use to get the desired Date Format.
First i made a table in database named ‘dbase’ within the reference of mySql(php myAdmin). Then after i import all the java packages from java library. I made a class named ‘MySqlGetFormat’ which extends ‘HttpServlet’. I use here the method service()Method that will use to getting the request from the doGet()Method for an output on the web browser. I loaded all the required drivers for accessing the database. I use here variables as required as I use ‘connection’ this variable will create a link between the database and the java code. This variable named ‘resultSet’ will use to get the value from the selected columns and rows from the selected table as required. After that i use to declare ‘preparedStatement’ that will use to executing the Selected query like executeQuery as (Select GET_FORMAT(DATE,’EUR’)). I use doGet()Method for getting output on the web browser.
On the web browser, I use to set ‘HTML’ code and those tags that will Bring output in tabular form on browser.
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 MySqlGetFormat 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 GET_FORMAT(DATE,'EUR') AS gf");
rs = ps.executeQuery();
String title = "Using Get Format Function";
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>Required Result</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>MySqlGetFormat</servlet-name>
<servlet-class>MySqlGetFormat</servlet-class>
</servlet>
<!-- servlet mapping -->
<servlet-mapping>
<servlet-name>MySqlGetFormat</servlet-name>
<url-pattern>/MySqlGetFormat</url-pattern>
</servlet-mapping>
Dinesh Thakur holds an B.C.A, MCDBA, MCSD certifications. Dinesh authors the hugely popular