Tutorials

Spring-Boot/spring-boot-shutdown/pom.xml

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+<?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>
+
+	<groupId>com.javadevjournal</groupId>
+	<artifactId>spring-boot-shutdown</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>spring-boot-shutdown</name>
+	<description>How to Shutdown a Spring Boot Application gracefully</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.0.4.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-actuator</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-devtools</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+
+</project>

Spring-Boot/spring-boot-shutdown/src/main/java/com/javadevjournal/ApplicationConfig.java

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+package com.javadevjournal;
+
+import org.springframework.context.annotation.Configuration;
+
+import javax.annotation.PreDestroy;
+
+@Configuration
+public class ApplicationConfig {
+
+    @PreDestroy
+    public void onShutDown(){
+        System.out.println("closing application context..let's do the final resource cleanup");
+    }
+}

Spring-Boot/spring-boot-shutdown/src/main/java/com/javadevjournal/SpringBootShutdownApplication.java

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+package com.javadevjournal;
+
+import org.springframework.boot.ExitCodeGenerator;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+
+@SpringBootApplication
+public class SpringBootShutdownApplication {
+
+	public static void main(String[] args) {
+
+		ConfigurableApplicationContext ctx =  SpringApplication.run(SpringBootShutdownApplication.class, args);
+		exitApplication(ctx);
+        //ctx.close();
+	}
+
+	public static void exitApplication(ConfigurableApplicationContext ctx){
+        int exitCode = SpringApplication.exit(ctx, new ExitCodeGenerator() {
+            @Override
+            public int getExitCode() {
+                // no errors
+                return 0;
+            }
+        });
+        System.exit(exitCode);
+    }
+}

Spring-Boot/spring-boot-shutdown/src/main/resources/application.properties

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+management.endpoint.shutdown.enabled=true
+management.endpoint.info.enabled=true
+management.endpoints.web.exposure.include=*

Spring-Boot/spring-boot-shutdown/src/test/java/com/javadevjournal/SpringBootShutdownApplicationTests.java

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+package com.javadevjournal;
+
+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 SpringBootShutdownApplicationTests {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}