I install spring-boot with settings: project: gradle, language: kotlin, Spring Boot: 3.0.0, Java: 11. And when build project saw this error: "Unresolved reference: listOf".(listOf work in kt files)
plugins {
id("org.springframework.boot") version "3.0.0-SNAPSHOT"
id("io.spring.dependency-management") version "1.0.13.RELEASE"
kotlin("jvm") version "1.7.10"
kotlin("plugin.spring") version "1.7.10"
kotlin("plugin.jpa") version "1.7.10"
}
group = "com.example"
version = "0.0.1-SNAPSHOT"
java.sourceCompatibility = JavaVersion.VERSION_17
repositories {
mavenCentral()
maven { url = uri("https://repo.spring.io/milestone") }
maven { url = uri("https://repo.spring.io/snapshot") }
}
dependencies {
implementation("org.springframework.boot:spring-boot-starter-data-jpa")
implementation("org.springframework.boot:spring-boot-starter-web")
implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
implementation("org.jetbrains.kotlin:kotlin-reflect")
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
developmentOnly("org.springframework.boot:spring-boot-devtools")
testImplementation("org.springframework.boot:spring-boot-starter-test")
}
tasks.withType<KotlinCompile> {
kotlinOptions {
freeCompilerArgs = listOf("-Xjsr305=strict")
jvmTarget = "17"
}
}
tasks.withType<Test> {
useJUnitPlatform()
}
Project settings enter image description here
Related
I have a SpringBoot project with the following build.gradle:
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
plugins {
id("org.springframework.boot") version "2.7.0"
id("io.spring.dependency-management") version "1.0.9.RELEASE"
kotlin("jvm") version "1.7.0"
kotlin("plugin.spring") version "1.7.0"
kotlin("plugin.jpa") version "1.6.21"
id("org.flywaydb.flyway") version "6.4.4"
}
group = "com.planes"
version = "0.0.1-SNAPSHOT"
java.sourceCompatibility = JavaVersion.VERSION_1_8
repositories {
mavenCentral()
}
dependencies {
implementation("org.apache.tomcat.embed:tomcat-embed-jasper")
implementation("org.springframework.boot:spring-boot-starter-data-jpa")
implementation("org.springframework.boot:spring-boot-starter-validation")
implementation("org.springframework.boot:spring-boot-starter-security")
implementation("org.springframework.boot:spring-boot-starter-web")
implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
implementation("org.jetbrains.kotlin:kotlin-reflect")
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
implementation("io.jsonwebtoken:jjwt:0.9.0")
implementation("org.postgresql:postgresql")
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core")
testImplementation("org.springframework.boot:spring-boot-starter-test") {
exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
}
testImplementation("org.springframework.security:spring-security-test")
}
tasks.withType<Test> {
useJUnitPlatform()
}
tasks.withType<KotlinCompile> {
kotlinOptions {
freeCompilerArgs = listOf("-Xjsr305=strict")
jvmTarget = "1.8"
}
}
springBoot {
mainClassName = "com.planes.planesserver.DemoApplication"
}
When I run the Gradle Wrapper Task I get the following error: "Unresolved reference: mainClassName"
This happens after I updated SpringBoot from Version 2.2 to 2.7 and gradle from version 5 to version 6.9.3
In the previous configuration the project could compile just fine. Are there any adjustments I need to still make for this new configuration ?
Can anyone please give a suggestion ?
In Springboot 2.4 they changed the name and type of the main classname property, see in Springboot 2.4 Release notes:
You need to update your build script as follows :
springBoot {
// before springboot 2.4
// mainClassName = "com.planes.planesserver.DemoApplication"
// since springboot 2.4 :
mainClass.set( "com.planes.planesserver.DemoApplication")
}
I thoroughly followed this tutorial, step-by-step.
I get this error in IntelliJ idea.
It's probably an IDE quirk, since the tests are actually running just fine.
I'm using Java 11 and the following dependecies versions:
dependencies {
implementation("org.springframework.boot:spring-boot-starter-data-jpa")
implementation("org.springframework.boot:spring-boot-starter-mustache")
implementation("org.springframework.boot:spring-boot-starter-web")
implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
implementation("org.jetbrains.kotlin:kotlin-reflect")
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
developmentOnly("org.springframework.boot:spring-boot-devtools")
runtimeOnly("com.h2database:h2")
testImplementation("org.springframework.boot:spring-boot-starter-test")
}
plugins {
id("org.springframework.boot") version "2.7.1"
id("io.spring.dependency-management") version "1.0.11.RELEASE"
kotlin("jvm") version "1.6.21"
kotlin("plugin.spring") version "1.6.21"
kotlin("plugin.jpa") version "1.6.21"
kotlin("plugin.allopen") version "1.4.32"
}
tasks.withType<KotlinCompile> {
kotlinOptions {
freeCompilerArgs = listOf("-Xjsr305=strict")
jvmTarget = "11"
}
}
tasks.withType<Test> {
useJUnitPlatform()
}
java.sourceCompatibility = JavaVersion.VERSION_11
I can't find anything to get rid of this annoying red highlight.
I have a Kotlin Multiplatform project and I am trying to add Spring Boot to my Gradle dependencies. When a project is generated from the Spring Initializr it creates the developmentOnly dependency configuration as seen below. It also creates the testImplementation dependency configuration.
The first build.gradle.kts below is my attempt at transferring these to a multiplatform project, which so far hasn't worked. I have marked the lines that have problems with comments, they are towards the bottom of the file. Afterward, I have put a normal Spring Boot build.gradle.kts for comparison.
How can these be put into a multiplatform project? Or, if they can't be added for some reason, set up the configuration in such a way that the same result is achieved.
plugins {
id("org.springframework.boot") version "2.2.4.RELEASE"
id("io.spring.dependency-management") version "1.0.9.RELEASE"
kotlin("multiplatform") version "1.3.70-eap-184"
kotlin("plugin.spring") version "1.3.70-eap-184"
kotlin("plugin.jpa") version "1.3.70-eap-184"
}
group = "com.test"
version = "0.0.1-SNAPSHOT"
java.sourceCompatibility = JavaVersion.VERSION_13
java.targetCompatibility = JavaVersion.VERSION_13
repositories {
maven { url = uri("https://dl.bintray.com/kotlin/kotlin-dev/") }
maven { url = uri("https://dl.bintray.com/kotlin/kotlin-eap") }
maven { url = uri("https://kotlin.bintray.com/kotlinx") }
maven { url = uri("https://dl.bintray.com/kotlin/kotlin-js-wrappers") }
mavenCentral()
jcenter()
}
kotlin {
jvm()
js {
browser()
}
}
kotlin.sourceSets["jsMain"].dependencies {
implementation(kotlin("stdlib-js"))
implementation("org.jetbrains:kotlin-react:16.9.0-pre.91-kotlin-1.3.61")
implementation("org.jetbrains:kotlin-react-dom:16.9.0-pre.91-kotlin-1.3.61")
implementation(npm("react", "16.12.0"))
implementation(npm("react-dom", "16.12.0"))
implementation("org.jetbrains:kotlin-styled:1.0.0-pre.91-kotlin-1.3.61")
implementation(npm("styled-components", "5.0.1"))
implementation(npm("inline-style-prefixer", "5.1.1"))
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core-common:1.3.3")
}
//The problems begin here
val developmentOnly by configurations.creating
configurations {
runtimeClasspath { //can't resolve runtimeClasspath
extendsFrom(developmentOnly) //can't resolve extendsFrom
}
}
kotlin.sourceSets["jvmMain"].dependencies {
implementation("org.springframework.boot:spring-boot-starter-data-jpa")
implementation("org.springframework.boot:spring-boot-starter-oauth2-client")
implementation("org.springframework.boot:spring-boot-starter-security")
implementation("org.springframework.boot:spring-boot-starter-web")
implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
implementation("org.jetbrains.kotlin:kotlin-reflect")
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
implementation("org.springframework.session:spring-session-core")
developmentOnly("org.springframework.boot:spring-boot-devtools") //error because of above where developmentOnly is defined
runtimeOnly("org.postgresql:postgresql")
testImplementation("org.springframework.boot:spring-boot-starter-test") { //can't resolve testImplementation
exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
}
testImplementation("org.springframework.security:spring-security-test") //can't resolve testImplementation
}
Normal build.gradle.kts with Spring Boot (no issues)
plugins {
id("org.springframework.boot") version "2.2.4.RELEASE"
id("io.spring.dependency-management") version "1.0.9.RELEASE"
war
kotlin("jvm") version "1.3.61"
kotlin("plugin.spring") version "1.3.61"
kotlin("plugin.jpa") version "1.3.61"
}
group = "com.test"
version = "0.0.1-SNAPSHOT"
java.sourceCompatibility = JavaVersion.VERSION_11
java.targetCompatibility = JavaVersion.VERSION_11
val developmentOnly by configurations.creating
configurations {
runtimeClasspath {
extendsFrom(developmentOnly)
}
}
repositories {
mavenCentral()
}
dependencies {
implementation("org.springframework.boot:spring-boot-starter-data-jpa")
implementation("org.springframework.boot:spring-boot-starter-web")
implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
implementation("org.jetbrains.kotlin:kotlin-reflect")
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
developmentOnly("org.springframework.boot:spring-boot-devtools")
runtimeOnly("com.microsoft.sqlserver:mssql-jdbc")
providedRuntime("org.springframework.boot:spring-boot-starter-tomcat")
testImplementation("org.springframework.boot:spring-boot-starter-test") {
exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
}
}
I'm new at spring boot with kotlin.
I have error when application start up.
I had been seeking various solutions in the other answers in Stackoverflow.
But no answers gave me no solutions.
***************************
APPLICATION FAILED TO START
***************************
Description:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
My application.properties configuration is following.
spring.datasource.url=jdbc:mysql://localhost/db_name
spring.datasource.username=db_user
spring.datasource.password=db_pass
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
And build.gradle.kts is following.
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
plugins {
id("org.springframework.boot") version "2.2.0.RELEASE"
id("io.spring.dependency-management") version "1.0.8.RELEASE"
war
kotlin("jvm") version "1.3.50"
kotlin("plugin.spring") version "1.3.50"
kotlin("plugin.jpa") version "1.3.50"
}
group = "jp.co.blowfish.springboot"
version = "0.0.1-SNAPSHOT"
java.sourceCompatibility = JavaVersion.VERSION_1_8
val developmentOnly by configurations.creating
configurations {
runtimeClasspath {
extendsFrom(developmentOnly)
}
}
repositories {
mavenCentral()
}
dependencies {
implementation("org.springframework.boot:spring-boot-starter-data-jpa")
implementation("org.springframework.boot:spring-boot-starter-thymeleaf")
implementation("org.springframework.boot:spring-boot-starter-web")
implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
implementation("org.jetbrains.kotlin:kotlin-reflect")
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
developmentOnly("org.springframework.boot:spring-boot-devtools")
runtimeOnly("mysql:mysql-connector-java")
providedRuntime("org.springframework.boot:spring-boot-starter-tomcat")
testImplementation("org.springframework.boot:spring-boot-starter-test") {
exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
}
}
tasks.withType<Test> {
useJUnitPlatform()
}
tasks.withType<KotlinCompile> {
kotlinOptions {
freeCompilerArgs = listOf("-Xjsr305=strict")
jvmTarget = "1.8"
}
}
I have no idea what is wrong.
It is missing the port of Mysql by default is 3306
spring.datasource.url=jdbc:mysql://localhost:3306/db_name`
or application.properties is in resources folder.
I am working on a reactive spring boot api server. I first wanted to use MVC pattern, but I thought reactor would be a good idea.
So I have deleted all spring dependencies on MVC (I believe).
But spring keeps complaining that I can't use #EnableWebMvc along #EnableWebFlux.
Following is my error log
Caused by: java.lang.IllegalStateException: The Java/XML config for Spring MVC and Spring WebFlux cannot both be enabled, e.g. via #EnableWebMvc and #EnableWebFlux, in the same application.
What possibly could be the problem? I sure did updated my dependencies.
And following is my build.gradle.kts file
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
buildscript {
repositories {
mavenCentral()
}
dependencies {
"classpath"(group = "gradle.plugin.com.palantir.gradle.docker", name = "gradle-docker")
}
}
plugins {
kotlin("plugin.jpa") version "1.3.40"
id("org.springframework.boot") version "2.1.6.RELEASE"
id("io.spring.dependency-management") version "1.0.7.RELEASE"
id("com.palantir.docker") version "0.22.1"
kotlin("jvm") version "1.3.40"
kotlin("plugin.spring") version "1.3.40"
}
group = "com.mycompany"
version = "0.0.1-SNAPSHOT"
java.sourceCompatibility = JavaVersion.VERSION_1_8
val developmentOnly by configurations.creating
configurations {
runtimeClasspath {
extendsFrom(developmentOnly)
}
}
repositories {
mavenCentral()
maven(url = "https://repo.spring.io/snapshot")
maven(url = "https://repo.spring.io/milestone")
}
extra["springCloudVersion"] = "Greenwich.SR1"
dependencies {
implementation("org.springframework.boot:spring-boot-starter-web")
implementation("org.springframework.boot:spring-boot-starter-batch")
implementation("org.springframework.boot:spring-boot-starter-oauth2-client")
implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
//reactor
implementation("io.projectreactor:reactor-core")
implementation("org.springframework.boot:spring-boot-starter-webflux")
implementation("org.springframework.data:spring-data-jdbc:1.0.0.r2dbc-SNAPSHOT")
implementation("org.springframework.data:spring-data-r2dbc:1.0.0.M1")
implementation("io.r2dbc:r2dbc-spi:1.0.0.M5")
implementation("io.r2dbc:r2dbc-postgresql:1.0.0.M6")
developmentOnly("org.springframework.boot:spring-boot-devtools")
runtimeOnly("org.postgresql:postgresql")
testImplementation("org.springframework.boot:spring-boot-starter-test")
testImplementation("io.projectreactor:reactor-test")
testImplementation("org.springframework.batch:spring-batch-test")
annotationProcessor("org.springframework.boot:spring-boot-configuration-processor")
testImplementation("org.springframework.boot:spring-boot-starter-test") {
exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
exclude(group = "junit", module = "junit")
}
}
dependencyManagement {
imports {
mavenBom("org.springframework.cloud:spring-cloud-dependencies:${property("springCloudVersion")}")
mavenBom("io.projectreactor:reactor-bom:Bismuth-RELEASE")
}
}
tasks.withType<KotlinCompile> {
kotlinOptions {
freeCompilerArgs = listOf("-Xjsr305=strict")
jvmTarget = "1.8"
}
}
task<Copy>("unpack") {
dependsOn(tasks.getByName("bootJar"))
from(zipTree(tasks.getByName("bootJar").outputs.files.singleFile))
into("build/dependency")
}
I figured it out by deleting each dependencies I have.
The problem was
implementation("org.springframework.boot:spring-boot-starter-web")
After deleting this, It worked. Maybe above dependency has it's own dependencies on WebMvc but I'm not sure.