Spring boot Gradle,Kotlin,多模块项目:编译此项目时获取生成错误
在根文件夹上运行gradle build命令时出现以下错误Spring boot Gradle,Kotlin,多模块项目:编译此项目时获取生成错误,spring-boot,gradle,kotlin,build,Spring Boot,Gradle,Kotlin,Build,在根文件夹上运行gradle build命令时出现以下错误 E:\Code\mdh>gradle build > Task :multidemo:compileKotlin FAILED e: E:\Code\mdh\multidemo\src\main\kotlin\com\simbalarry\multidemo\SampleController.kt: (3, 23): Unresolved reference: somelib e: E:\Code\mdh\multidem
E:\Code\mdh>gradle build
> Task :multidemo:compileKotlin FAILED
e: E:\Code\mdh\multidemo\src\main\kotlin\com\simbalarry\multidemo\SampleController.kt: (3, 23): Unresolved reference: somelib
e: E:\Code\mdh\multidemo\src\main\kotlin\com\simbalarry\multidemo\SampleController.kt: (18, 12): Unresolved reference: Tester
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':multidemo:compileKotlin'.
> Compilation error. See log for more details
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 5s
4 actionable tasks: 1 executed, 3 up-to-date
下面是我的项目结构,multidemo项目正在使用somelib的一些功能。此外,我还保留了一些库作为spring boot项目,因为稍后我将添加更多与spring boot相关的功能
Root Project
|
|---settings.gradle
|---somelib
| |
| |---build.gradle
| |---settings.gradle
| |---src/main/kotlin/somepackage/Tester.kt
| |---src/main/kotlin/somepackage/SomeLibApplication.kt
|
|---multidemo
| |---build.gradle
| |---settings.gradle
| |---src/main/kotlin/somepackage/SampleController.kt
| |---src/main/kotlin/somepackage/MultidemoApplication.kt
下面是每个文件的内容
Root/settings.gradle
include ':somelib', ':multidemo'
pluginManagement {
repositories {
gradlePluginPortal()
}
}
rootProject.name = 'somelib'
pluginManagement {
repositories {
gradlePluginPortal()
}
}
rootProject.name = 'multidemo'
somelib/build.gradle
plugins {
id 'org.springframework.boot' version '2.1.3.RELEASE'
id 'org.jetbrains.kotlin.jvm' version '1.3.21'
id 'org.jetbrains.kotlin.plugin.spring' version '1.3.21'
}
apply plugin: 'io.spring.dependency-management'
group = 'com.simbalarry'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
repositories {
mavenCentral()
}
dependencies {
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'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
compileKotlin {
kotlinOptions {
freeCompilerArgs = ['-Xjsr305=strict']
jvmTarget = '1.8'
}
}
compileTestKotlin {
kotlinOptions {
freeCompilerArgs = ['-Xjsr305=strict']
jvmTarget = '1.8'
}
}
plugins {
id 'org.springframework.boot' version '2.1.3.RELEASE'
id 'org.jetbrains.kotlin.jvm' version '1.3.21'
id 'org.jetbrains.kotlin.plugin.spring' version '1.3.21'
}
apply plugin: 'io.spring.dependency-management'
group = 'com.simbalarry'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
repositories {
mavenCentral()
mavenLocal()
}
dependencies {
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'
compile project(':somelib')
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
compileKotlin {
kotlinOptions {
freeCompilerArgs = ['-Xjsr305=strict']
jvmTarget = '1.8'
}
}
compileTestKotlin {
kotlinOptions {
freeCompilerArgs = ['-Xjsr305=strict']
jvmTarget = '1.8'
}
}
somelib/settings.gradle
include ':somelib', ':multidemo'
pluginManagement {
repositories {
gradlePluginPortal()
}
}
rootProject.name = 'somelib'
pluginManagement {
repositories {
gradlePluginPortal()
}
}
rootProject.name = 'multidemo'
somelib/src/main/kotlin/somepackage/Tester.kt
package com.simbalarry.somelib
/*
* Created on : 17-03-2019
* Author : Nayan Kurude
*/
object Tester {
fun getOutputText(): String {
return "Sample Text"
}
}
somelib/src/main/kotlin/somepackage/SomelibApplication.kt
package com.simbalarry.somelib
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication
@SpringBootApplication
class SomelibApplication
fun main(args: Array<String>) {
runApplication<SomelibApplication>(*args)
}
package com.simbalarry.multidemo
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication
@SpringBootApplication
class MultidemoApplication
fun main(args: Array<String>) {
runApplication<MultidemoApplication>(*args)
}
multidemo/settings.gradle
include ':somelib', ':multidemo'
pluginManagement {
repositories {
gradlePluginPortal()
}
}
rootProject.name = 'somelib'
pluginManagement {
repositories {
gradlePluginPortal()
}
}
rootProject.name = 'multidemo'
multidemo/src/main/kotlin/somepackage/MultiDemoApplication.kt
package com.simbalarry.somelib
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication
@SpringBootApplication
class SomelibApplication
fun main(args: Array<String>) {
runApplication<SomelibApplication>(*args)
}
package com.simbalarry.multidemo
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication
@SpringBootApplication
class MultidemoApplication
fun main(args: Array<String>) {
runApplication<MultidemoApplication>(*args)
}
谁能告诉我哪里做错了什么。正如我在评论中所说:somelib应该是一个库。所以它不应该应用SpringBoot插件,它的作用是创建一个SpringBoot应用程序
somelib
的build.gradle文件应如下所示:
plugins {
id 'java-library' // 1
id 'org.springframework.boot' version '2.1.3.RELEASE' apply false // 2
id 'io.spring.dependency-management' version '1.0.6.RELEASE' //3
id 'org.jetbrains.kotlin.jvm' version '1.3.21'
id 'org.jetbrains.kotlin.plugin.spring' version '1.3.21'
}
group = 'com.simbalarry'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
repositories {
mavenCentral()
}
dependencyManagement { // 4
imports {
mavenBom org.springframework.boot.gradle.plugin.SpringBootPlugin.BOM_COORDINATES
}
}
ext['kotlin.version'] = '1.3.21' // 5
dependencies {
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'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
compileKotlin {
kotlinOptions {
freeCompilerArgs = ['-Xjsr305=strict']
jvmTarget = '1.8'
}
}
compileTestKotlin {
kotlinOptions {
freeCompilerArgs = ['-Xjsr305=strict']
jvmTarget = '1.8'
}
}
一些解释(参见代码中的注释):
只有根项目必须具有settings.gradle文件。另外,如果someLib是一个库,那么它不应该是一个应用程序,不应该有一个主类,也不应该是spring引导插件?我需要somelib中的spring引导功能。我从两个项目中删除了settings.gradle文件,仍然是相同的错误。没有“spring引导库”这样的东西。SpringBoot中使用的库只是一个普通的Java库,即一个包含类的jar。你所需要做的就是编译代码,使之成为一个常规的、标准的、普通的jar文件。你能告诉我我需要对哪个文件做什么更改才能使它正常工作吗?