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Step01.md

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\pom.xml

<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>
	<groupId>com.in28minutes</groupId>
	<artifactId>in28Minutes-first-webapp</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>

	<dependencies>
		<dependency>
			<groupId>javax</groupId>
			<artifactId>javaee-web-api</artifactId>
			<version>6.0</version>
			<scope>provided</scope>
		</dependency>
	</dependencies>

	<build>
		<pluginManagement>
			<plugins>
				<plugin>
					<groupId>org.apache.maven.plugins</groupId>
					<artifactId>maven-compiler-plugin</artifactId>
					<version>3.2</version>
					<configuration>
						<verbose>true</verbose>
						<source>1.8</source>
						<target>1.8</target>
						<showWarnings>true</showWarnings>
					</configuration>
				</plugin>
				<plugin>
					<groupId>org.apache.tomcat.maven</groupId>
					<artifactId>tomcat7-maven-plugin</artifactId>
					<version>2.2</version>
					<configuration>
						<path>/</path>
						<contextReloadable>true</contextReloadable>
					</configuration>
				</plugin>
			</plugins>
		</pluginManagement>
	</build>
</project>

\src\main\java\webapp\LoginServlet.java

package webapp;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/*
 * Browser sends Http Request to Web Server
 * 
 * Code in Web Server => Input:HttpRequest, Output: HttpResponse
 * JEE with Servlets
 * 
 * Web Server responds with Http Response
 */

//Java Platform, Enterprise Edition (Java EE) JEE6

//Servlet is a Java programming language class 
//used to extend the capabilities of servers 
//that host applications accessed by means of 
//a request-response programming model.

//1. extends javax.servlet.http.HttpServlet
//2. @WebServlet(urlPatterns = "/login.do")
//3. doGet(HttpServletRequest request, HttpServletResponse response)
//4. How is the response created?

@WebServlet(urlPatterns = "/login.do")
public class LoginServlet extends HttpServlet {

	@Override
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
		PrintWriter out = response.getWriter();
		out.println("<html>");
		out.println("<head>");
		out.println("<title>Yahoo!!!!!!!!</title>");
		out.println("</head>");
		out.println("<body>");
		out.println("My First Servlet");
		out.println("</body>");
		out.println("</html>");

	}

}

\src\main\webapp\WEB-INF\web.xml

<!-- webapp/WEB-INF/web.xml -->
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
	version="3.0">

	<display-name>To do List</display-name>

	<welcome-file-list>
		<welcome-file>login.do</welcome-file>
	</welcome-file-list>

</web-app>