java web application without web.xml - servlets 3.0

javax-servlets-3/.gitignore

@@ -1,6 +0,0 @@
-# Created by .ignore support plugin (hsz.mobi)
-.idea
-classes
-target
-*.iml
-out

javax-servlets-3/Dockerfile

@@ -1,2 +0,0 @@
-FROM tomcat
-ADD ./target/uppercasing-app.war /usr/local/tomcat/webapps/

javax-servlets-3/README.md

@@ -1,10 +0,0 @@
-## Build with maven:
-mvn package
-
-## Run with Tomcat on Docker container:
-docker build --tag my-tomcat .
-
-docker run -it --rm -p 8080:8080 my-tomcat
-
-## Relevant Articles:
-- [Java Web Application Without Web.xml]

javax-servlets-3/pom.xml

@@ -1,52 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<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>javax-servlets-3</artifactId>
-    <version>1.0-SNAPSHOT</version>
-    <name>javax-servlets-3</name>
-    <packaging>war</packaging>
-    
-    <parent>
-        <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
-        <version>1.0.0-SNAPSHOT</version>
-    </parent>
-    
-    <dependencies>
-        <!-- Servlet -->
-        <dependency>
-            <groupId>javax.servlet</groupId>
-            <artifactId>javax.servlet-api</artifactId>
-            <version>${javax.servlet-api.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-webmvc</artifactId>
-            <version>${spring.version}</version>
-        </dependency>
-    </dependencies>
-    <properties>
-        <javax.servlet-api.version>4.0.1</javax.servlet-api.version>
-        <spring.version>5.1.3.RELEASE</spring.version>
-    </properties>
-    <build>
-        <finalName>uppercasing-app</finalName>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-war-plugin</artifactId>
-                <version>3.1.0</version>
-                <executions>
-                    <execution>
-                        <id>default-war</id>
-                        <phase>prepare-package</phase>
-                        <configuration>
-                            <failOnMissingWebXml>false</failOnMissingWebXml>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-</project>

javax-servlets-3/src/main/java/com/baeldung/servlets3/spring/AppInitializer.java

@@ -1,27 +0,0 @@
-package com.baeldung.servlets3.spring;
-
-import com.baeldung.servlets3.spring.config.AppConfig;
-import org.springframework.web.WebApplicationInitializer;
-import org.springframework.web.context.ContextLoaderListener;
-import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
-import org.springframework.web.servlet.DispatcherServlet;
-
-import javax.servlet.ServletContext;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRegistration;
-
-public class AppInitializer implements WebApplicationInitializer {
-    @Override
-    public void onStartup(ServletContext servletContext) throws ServletException {
-        AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
-        context.register(AppConfig.class);
-
-        servletContext.addListener(new ContextLoaderListener(context));
-
-        ServletRegistration.Dynamic dispatcher = servletContext.addServlet("spring-dispatcher",
-            new DispatcherServlet(context));
-
-        dispatcher.setLoadOnStartup(1);
-        dispatcher.addMapping("/spring/*");
-    }
-}

javax-servlets-3/src/main/java/com/baeldung/servlets3/spring/config/AppConfig.java

@@ -1,11 +0,0 @@
-package com.baeldung.servlets3.spring.config;
-
-import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.web.servlet.config.annotation.EnableWebMvc;
-
-@Configuration
-@EnableWebMvc
-@ComponentScan("com.baeldung.servlets3.spring")
-public class AppConfig {
-}

javax-servlets-3/src/main/java/com/baeldung/servlets3/spring/controllers/UppercaseController.java

@@ -1,17 +0,0 @@
-package com.baeldung.servlets3.spring.controllers;
-
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
-
-@RestController
-@RequestMapping("/uppercase")
-public class UppercaseController {
-
-    @GetMapping(produces = "text/html")
-    public String getUppercase(@RequestParam(required = false)String param) {
-        String response = param != null ? param.toUpperCase() : "Missing param";
-        return "From Spring: " + response;
-    }
-}

javax-servlets/src/main/java/com/baeldung/filters/EmptyParamFilter.java

@@ -1,4 +1,4 @@
-package com.baeldung.servlets3.web.filters;
+package com.baeldung.filters;
 
 import javax.servlet.Filter;
 import javax.servlet.FilterChain;
@@ -9,7 +9,7 @@ import javax.servlet.ServletResponse;
 import javax.servlet.annotation.WebFilter;
 import java.io.IOException;
 
-@WebFilter(servletNames = { "uppercaseServlet" }, urlPatterns = "/uppercase")
+@WebFilter(urlPatterns = "/uppercase")
 public class EmptyParamFilter implements Filter {
 
     @Override

javax-servlets/src/main/java/com/baeldung/listeners/AppListener.java

@@ -1,4 +1,4 @@
-package com.baeldung.servlets3.web.listeners;
+package com.baeldung.listeners;
 
 import javax.servlet.ServletContext;
 import javax.servlet.ServletContextEvent;

javax-servlets/src/main/java/com/baeldung/listeners/RequestListener.java

@@ -1,4 +1,4 @@
-package com.baeldung.servlets3.web.listeners;
+package com.baeldung.listeners;
 
 import javax.servlet.ServletContext;
 import javax.servlet.ServletRequestEvent;

javax-servlets/src/main/java/com/baeldung/servlets/CounterServlet.java

@@ -1,4 +1,4 @@
-package com.baeldung.servlets3.web.servlets;
+package com.baeldung.servlets;
 
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServlet;
@@ -10,10 +10,6 @@ import java.io.PrintWriter;
 @WebServlet(urlPatterns = "/counter", name = "counterServlet")
 public class CounterServlet extends HttpServlet {
 
-    public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
-        doGet(request, response);
-    }
-
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
         response.setContentType("text/html");
 

javax-servlets/src/main/java/com/baeldung/servlets/UppercaseServlet.java

@@ -1,4 +1,4 @@
-package com.baeldung.servlets3.web.servlets;
+package com.baeldung.servlets;
 
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServlet;
@@ -10,10 +10,6 @@ import java.io.PrintWriter;
 @WebServlet(urlPatterns = "/uppercase", name = "uppercaseServlet")
 public class UppercaseServlet extends HttpServlet {
 
-    public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
-        doGet(request, response);
-    }
-
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
         String inputString = request.getParameter("input").toUpperCase();