[BAEL-17473] - Initial commit

spring-boot-deployment/src/main/java/com/baeldung/springbootconfiguration/SpringBootConfigurationApplication.java

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+package com.baeldung.springbootconfiguration;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringBootConfigurationApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBootConfigurationApplication.class, args);
+    }
+
+}

spring-boot-deployment/src/main/java/com/baeldung/springbootconfiguration/controller/GreetingsController.java

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+package com.baeldung.springbootconfiguration.controller;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class GreetingsController {
+
+    @GetMapping("/greetings/{username}")
+    public String getGreetings(@PathVariable("username") String userName) {
+        return "Hello " + userName + ", Good day...!!!";
+    }
+}

spring-boot-deployment/src/main/java/com/baeldung/springbootnonwebapp/SpringBootConsoleApplication.java

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+package com.baeldung.springbootnonwebapp;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * 1. Act as main class for spring boot application
+ * 2. Also implements CommandLineRunner, so that code within run method
+ * is executed before application startup but after all beans are effectively created
+ * @author hemant
+ *
+ */
+@SpringBootApplication
+public class SpringBootConsoleApplication implements CommandLineRunner {
+
+	private static Logger LOG = LoggerFactory.getLogger(SpringBootConsoleApplication.class);
+
+	public static void main(String[] args) {
+		LOG.info("STARTING THE APPLICATION");
+		SpringApplication.run(SpringBootConsoleApplication.class, args);
+		LOG.info("APPLICATION FINISHED");
+	}
+
+	/**
+	 * This method will be executed after the application context is loaded and
+	 * right before the Spring Application main method is completed.
+	 */
+	@Override
+	public void run(String... args) throws Exception {
+		LOG.info("EXECUTING : command line runner");
+    		for (int i = 0; i < args.length; ++i) {
+        		LOG.info("args[{}]: {}", i, args[i]);
+    		}
+	}
+}

spring-boot-deployment/src/main/java/com/baeldung/springbootsimple/SpringBootTomcatApplication.java

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+package com.baeldung.springbootsimple;
+
+import org.springframework.boot.*;
+import org.springframework.boot.autoconfigure.*;
+import org.springframework.boot.web.servlet.support.*;
+
+@SpringBootApplication
+public class SpringBootTomcatApplication extends SpringBootServletInitializer {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBootTomcatApplication.class, args);
+    }
+}

spring-boot-deployment/src/main/java/com/baeldung/springbootsimple/TomcatController.java

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+package com.baeldung.springbootsimple;
+
+import org.springframework.web.bind.annotation.*;
+
+import java.util.*;
+import java.util.stream.*;
+
+@RestController
+public class TomcatController {
+
+    @GetMapping(value = "/hello")
+    public Collection<String> sayHello() {
+        return IntStream.range(0, 10)
+                .mapToObj(i -> "Hello number " + i)
+                .collect(Collectors.toList());
+    }
+
+}

spring-boot-deployment/src/main/resources/application-tomcat.properties

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+# server configuration
+server.port=4010
+server.address=127.0.0.1
+
+## Error handling configuration
+server.error.whitelabel.enabled=true
+server.error.path=/user-error
+server.error.include-exception=true
+server.error.include-stacktrace=always
+
+## Server connections configuration
+server.tomcat.max-threads=200
+server.connection-timeout=5s
+server.max-http-header-size=8KB
+server.tomcat.max-swallow-size=2MB
+server.tomcat.max-http-post-size=2MB
+
+## Access logs configuration
+server.tomcat.accesslog.enabled=true
+server.tomcat.accesslog.directory=logs
+server.tomcat.accesslog.file-date-format=yyyy-MM-dd
+server.tomcat.accesslog.prefix=access_log
+server.tomcat.accesslog.suffix=.log
+server.tomcat.accesslog.pattern=common
+server.tomcat.basedir=tomcat
+
+## Tomcat internal server logs
+logging.level.org.apache.tomcat=DEBUG
+logging.level.org.apache.catalina=DEBUG

spring-boot-deployment/src/main/resources/application.properties

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+spring.main.allow-bean-definition-overriding=true

spring-boot-deployment/src/main/resources/logback.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

spring-boot-deployment/src/test/java/com/baeldung/springbootconfiguration/SpringContextIntegrationTest.java

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+package com.baeldung.springbootconfiguration;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class SpringContextIntegrationTest {
+
+    @Test
+    public void contextLoads() {
+    }
+}

spring-boot-deployment/src/test/java/com/baeldung/springbootconfiguration/SpringContextTest.java

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+package com.baeldung.springbootconfiguration;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class SpringContextTest {
+
+    @Test
+    public void contextLoads() {
+    }
+}

spring-boot-deployment/src/test/java/com/baeldung/springbootsimple/SpringBootTomcatApplicationIntegrationTest.java

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+package com.baeldung.springbootsimple;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class SpringBootTomcatApplicationIntegrationTest {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}