Click here to download eclipse supported ZIP file

 
    
package com.cv.servlet.refresh;



import java.io.IOException;

import java.io.PrintWriter;

import java.util.Calendar;

import java.util.GregorianCalendar;



import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;



import org.apache.log4j.Logger;



/**

 * Servlet implementation class RefreshServlet

 * 

 * @author Chandra Vardhan

 */

public class RefreshServlet extends HttpServlet {



  private static final Logger LOGGER = Logger.getLogger(RefreshServlet.class);



  private static int count = 0;



  protected void doPost(HttpServletRequest req, HttpServletResponse response)

      throws ServletException, IOException {

    LOGGER.info("LOGGER : RefreshServlet doGet(HttpServletRequest,HttpServletResponse)");

    ++count;

    // Set refresh, autoload time as 5 seconds

    response.setIntHeader("Refresh", 3);

    // Set response content type

    response.setContentType("text/html");



    // Get current time

    Calendar calendar = new GregorianCalendar();

    String am_pm;

    int hour = calendar.get(Calendar.HOUR);

    int minute = calendar.get(Calendar.MINUTE);

    int second = calendar.get(Calendar.SECOND);

    if (calendar.get(Calendar.AM_PM) == 0)

      am_pm = "AM";

    else

      am_pm = "PM";



    String CT = hour + ":" + minute + ":" + second + " " + am_pm;



    PrintWriter out = response.getWriter();

    String title = "Auto Page Refresh using Servlet";

    String docType = "<!doctype html public \"-//w3c//dtd html 4.0 "

        + "transitional//en\">\n";

    if ((count%2)==0) {

      out.println(docType + "<html>\n" + "<head><title>" + title

          + "</title></head>\n" + "<body bgcolor=\"#0000FF\">\n"

          + "<h1 align=\"center\">" + title + "</h1>\n"

          + "<p>Current Time is: " + CT + "</p>\n");

    } else {

      out.println(docType + "<html>\n" + "<head><title>" + title

          + "</title></head>\n" + "<body bgcolor=\"#ffff00\">\n"

          + "<h1 align=\"center\">" + title + "</h1>\n"

          + "<p>Current Time is: " + CT + "</p>\n");

    }



  

  }



  /**

   * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse

   *      response)

   */

  protected void doGet(HttpServletRequest request,

      HttpServletResponse response) throws ServletException, IOException {

    LOGGER.info("LOGGER : RefreshServlet doGet(HttpServletRequest ,HttpServletResponse )");

    doPost(request, response);

  }



}


<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">

<title>Login Form</title>


<style type="text/css">

</style>

</head>


<body>

	<br>

	<br>

	<div align="center">

		<form action="RefreshServlet" method="post" id='test'>

			<fieldset>

				<legend>First page...</legend>


				<table align="center">

					

					<tr>

						<td align="right"><input type="submit" value="Submit" /></td>

					</tr>

				</table>

			</fieldset>

		</form>

	</div>

</body>

</html>

#By default enabling Console appender

# Root logger option

log4j.rootLogger=INFO, stdout

# Redirect log messages to console

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.Target=System.out

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%-5p [%c]:%L -->> %m%n

# Redirect log messages to a log file

#log4j.appender.file=org.apache.log4j.RollingFileAppender

#log4j.appender.file.File=C:\\servlet-application.log

#log4j.appender.file.MaxFileSize=5MB

#log4j.appender.file.MaxBackupIndex=10

#log4j.appender.file.layout=org.apache.log4j.PatternLayout

#log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <artifactId>ServletAutoRefreshPageProject</artifactId>
  <version>1.0</version>
  <packaging>war</packaging>
   <properties>
		<log4j.version>1.2.16</log4j.version>
		<java.version>1.8</java.version>
	</properties>

	<build>
		<plugins>
			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.3</version>
				<configuration>
					<source>${java.version}</source>
					<target>${java.version}</target>
				</configuration>
			</plugin>
			<plugin>
				<artifactId>maven-war-plugin</artifactId>
				<version>2.6</version>
				<configuration>
					<warSourceDirectory>WebContent</warSourceDirectory>
					<failOnMissingWebXml>false</failOnMissingWebXml>
				</configuration>
			</plugin>
		</plugins>
	</build>
	<dependencies>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>servlet-api</artifactId>
			<version>3.0-alpha-1</version>
		</dependency>
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.3.1</version>
		</dependency>
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>${log4j.version}</version>
		</dependency>
		<dependency>
			<groupId>javax.servlet.jsp</groupId>
			<artifactId>jsp-api</artifactId>
			<version>2.0</version>
		</dependency>
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<dependency>
			<groupId>taglibs</groupId>
			<artifactId>standard</artifactId>
			<version>1.1.2</version>
		</dependency>
	</dependencies>
	<groupId>com.cv.servlet.ServletAutoRefreshPageProject</groupId>
</project>

 <?xml version="1.0" encoding="UTF-8"?> 
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee  http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"   version="3.1">
	

	<context-param>
		<param-name>name</param-name>
		<param-value>Chote</param-value>
	</context-param>
	<servlet>
		<servlet-name>RefreshServlet</servlet-name>
		<servlet-class>com.cv.servlet.refresh.RefreshServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>RefreshServlet</servlet-name>
		<url-pattern>/RefreshServlet</url-pattern>
	</servlet-mapping>
	<welcome-file-list>
		<welcome-file>login.html</welcome-file>
	</welcome-file-list>

</web-app>

Java Technologies

Servlet Auto Refresh Page Project

Click here to download eclipse supported ZIP file

No comments:

Post a Comment