Beer Servlet

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package com.cv.servlet.beer;



/**

 * @author Chandra Vardhan

 *

 */

import java.io.IOException;

import java.io.PrintWriter;



import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;



import org.apache.log4j.Logger;



public class BeerServlet extends HttpServlet {

  

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

  @Override

  protected void doPost(HttpServletRequest request,

      HttpServletResponse response) throws ServletException, IOException {

    LOGGER.info("Entered into doPost(--) of BeerServlet class... ");

    response.setContentType("text/html");

    PrintWriter out = response.getWriter();

    out.println("beer selection advice<br>");

    String c = request.getParameter("colour");

    out.println("<br>got beer colour " + c);

  }



  @Override

  protected void doGet(HttpServletRequest req, HttpServletResponse resp)

      throws ServletException, IOException {

    LOGGER.info("Entered into doGet(--) of BeerServlet class... ");

    doPost(req, resp);

  }

}



<!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=ISO-8859-1">

<title>form</title>

</head>

<body>

	<h1>Beer Selection Page</h1>

	<p>select beer characteristics</p>

	<form method="post" action="beer">

		Colour: <select name="colour" size="1">

			<option>light

			<option>amber

			<option>brown

			<option>dark

		</select>

		<center>

			<input type="submit" />

		</center>

	</form>



</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>beerServletProject</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</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>contextParam</param-name>
    <param-value>BEER</param-value>
  </context-param>
  <servlet>
    <servlet-name>beerservlet1</servlet-name>
    <servlet-class>com.cv.servlet.beer.BeerServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>beerservlet1</servlet-name>
    <url-pattern>/beer</url-pattern>
  </servlet-mapping>
  <welcome-file-list>
    <welcome-file>beer.html</welcome-file>
  </welcome-file-list>
</web-app>


































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