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BAEL-755 Kotlin and Spring Boot 2.x tutorial

This commit is contained in:
tschiman 2017-05-26 18:04:48 -06:00
parent 2bfc5bd979
commit 7bbfde57e1
8 changed files with 238 additions and 0 deletions
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1
pom.xml
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<module>spring-apache-camel</module>
<module>spring-batch</module>
<module>spring-boot</module>
<module>spring-boot-kotlin</module>
<module>spring-cloud-data-flow</module>
<module>spring-cloud</module>
<module>spring-core</module>

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spring-boot-kotlin/pom.xml Normal file
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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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.BUILD-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<artifactId>spring-boot-kotlin</artifactId>
<version>1.0.0-SNAPSHOT</version>
<properties>
<kotlin.compiler.incremental>true</kotlin.compiler.incremental>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<kotlin.version>1.1.2</kotlin.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jre8</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-reflect</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.module</groupId>
<artifactId>jackson-module-kotlin</artifactId>
<version>2.8.7</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
<testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<artifactId>kotlin-maven-plugin</artifactId>
<groupId>org.jetbrains.kotlin</groupId>
<version>${kotlin.version}</version>
<configuration>
<compilerPlugins>
<plugin>spring</plugin>
</compilerPlugins>
<jvmTarget>1.8</jvmTarget>
</configuration>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-allopen</artifactId>
<version>${kotlin.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>

24
spring-boot-kotlin/src/main/kotlin/com/baeldung/springbootkotlin/HelloController.kt Normal file
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package com.baeldung.springbootkotlin
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RestController
@RestController
class HelloController @Autowired constructor(val helloService: HelloService) {
@GetMapping("/hello")
fun helloKotlin(): String {
return "hello world"
}
@GetMapping("/hello-service")
fun helloKotlinService(): String {
return helloService.getHello()
}
@GetMapping("/hello-poko")
fun helloPoko(): HelloPoko {
return HelloPoko("Hello from the poko")
}
}

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spring-boot-kotlin/src/main/kotlin/com/baeldung/springbootkotlin/HelloPoko.kt Normal file
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package com.baeldung.springbootkotlin
data class HelloPoko constructor(val greeting: String)

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spring-boot-kotlin/src/main/kotlin/com/baeldung/springbootkotlin/HelloService.kt Normal file
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package com.baeldung.springbootkotlin
import org.springframework.stereotype.Service
@Service
class HelloService {
fun getHello(): String {
return "hello service"
}
}

11
spring-boot-kotlin/src/main/kotlin/com/baeldung/springbootkotlin/KotlinDemoApplication.kt Normal file
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package com.baeldung.springbootkotlin
import org.springframework.boot.SpringApplication
import org.springframework.boot.autoconfigure.SpringBootApplication
@SpringBootApplication
class KotlinDemoApplication
fun main(args: Array<String>) {
SpringApplication.run(KotlinDemoApplication::class.java, *args)
}

0
spring-boot-kotlin/src/main/resource/application.properties Normal file
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52
spring-boot-kotlin/src/test/kotlin/springbootkotlin/KotlinDemoApplicationTests.kt Normal file
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package com.example.kotlindemo
import com.baeldung.springbootkotlin.HelloPoko
import com.baeldung.springbootkotlin.KotlinDemoApplication
import org.junit.Assert
import org.junit.Test
import org.junit.runner.RunWith
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.test.context.SpringBootTest
import org.springframework.boot.test.web.client.TestRestTemplate
import org.springframework.http.HttpStatus
import org.springframework.test.context.junit4.SpringRunner
@RunWith(SpringRunner::class)
@SpringBootTest(classes = arrayOf(KotlinDemoApplication::class), webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
class KotlinDemoApplicationTests {
@Autowired
val testRestTemplate: TestRestTemplate? = null
@Test
fun contextLoads() {
}
@Test
fun testHelloController() {
var result = testRestTemplate?.getForEntity("/hello", String::class.java)
Assert.assertNotNull(result)
Assert.assertEquals(result?.statusCode, HttpStatus.OK)
Assert.assertEquals(result?.body, "hello world")
}
@Test
fun testHelloService() {
var result = testRestTemplate?.getForEntity("/hello-service", String::class.java)
Assert.assertNotNull(result)
Assert.assertEquals(result?.statusCode, HttpStatus.OK)
Assert.assertEquals(result?.body, "hello service")
}
@Test
fun testHelloPoko() {
var result = testRestTemplate?.getForEntity("/hello-poko", HelloPoko::class.java)
Assert.assertNotNull(result)
Assert.assertEquals(result?.statusCode, HttpStatus.OK)
Assert.assertEquals(result?.body, HelloPoko("Hello from the poko"))
}
}