如何编译Java+;使用Maven的Kotlin项目?
我正在尝试编译maven项目,它有引用Java类的Kotlin类。这是我父母POM的一部分:如何编译Java+;使用Maven的Kotlin项目?,java,maven,kotlin,Java,Maven,Kotlin,我正在尝试编译maven项目,它有引用Java类的Kotlin类。这是我父母POM的一部分: ... <dependency> <groupId>org.jetbrains.kotlin</groupId> <artifactId>kotlin-stdlib</artifactId> <version>${kotlin.version}</version> </dependency
...
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
<version>${kotlin.version}</version>
</dependency>
...
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${compiler-plugin-version}</version>
<configuration>
<source>${java-version}</source>
<target>${java-version}</target>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
<plugin>
<artifactId>kotlin-maven-plugin</artifactId>
<groupId>org.jetbrains.kotlin</groupId>
<version>${kotlin.plugin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>process-sources</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>test-compile</id>
<phase>process-test-sources</phase>
<goals>
<goal>test-compile</goal>
</goals>
</execution>
</executions>
<configuration>
<scanForAnnotations>false</scanForAnnotations>
</configuration>
</plugin>
如果我将Kotlin插件执行阶段
切换到编译
,那么如果存在从Java到Kotlin类的引用,那么它将不可避免地失败:
[ERROR] /C:/somepath/service/impl/DummyServiceClientImpl.java:[5,27] cannot find symbol
[ERROR] symbol: class DummyServiceImpl
那么,该怎么办呢?请注意,使用IDEA的
进行构建可以使
运行得非常顺利。请确保在pom.xml的
中有此声明
<plugins>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>process-sources</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<sourceDirs>
<source>src/main/java</source>
<source>src/main/kotlin</source>
<source>src/main/resources</source>
</sourceDirs>
</configuration>
</execution>
<execution>
<id>test-compile</id>
<phase>process-test-sources</phase>
<goals>
<goal>test-compile</goal>
</goals>
<configuration>
<sourceDirs>
<source>src/test/java</source>
<source>src/test/kotlin</source>
<source>src/test/resources</source>
</sourceDirs>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
org.jetbrains.kotlin
kotlin maven插件
${kotlin.version}
编译
过程源
编译
src/main/java
src/main/kotlin
src/main/resources
测试编译
过程测试源
测试编译
src/test/java
src/test/kotlin
src/测试/资源
确保配置中提到的所有文件夹(src/main中的3x和src/test中的3x)实际存在,即使它们不包含任何类/资源。一旦配置适合您,您仍然可以对其进行微调
还要注意使用与我上面提到的完全相同的顺序,让编译器首先编译Java代码 最后,我使用以下配置来混合Java和Kotlin源代码:
<build>
<sourceDirectory>${project.basedir}/src/main/java</sourceDirectory>
<testSourceDirectory>${project.basedir}/src/test/java</testSourceDirectory>
<plugins>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<sourceDirs>
<source>src/main/kotlin</source>
</sourceDirs>
</configuration>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
<configuration>
<sourceDirs>
<source>src/test/kotlin</source>
</sourceDirs>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
${project.basedir}/src/main/java
${project.basedir}/src/test/java
org.jetbrains.kotlin
kotlin maven插件
${kotlin.version}
编译
编译
编译
src/main/kotlin
测试编译
测试编译
测试编译
src/test/kotlin
引用自此
您必须在mvn-package
之前执行mvn-kotlin:compile
mvn kotlin:compile
将kotlin文件编译为类文件
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.wffweb</groupId>
<artifactId>kotlinminimalproductionsample</artifactId>
<version>0.0.1</version>
<packaging>war</packaging>
<!--
To package as war:- mvn clean kotlin:compile package
-->
<properties>
<maven.build.timestamp.format>yyyyMMddHHmmss</maven.build.timestamp.format>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<kotlin.version>1.2.21</kotlin.version>
</properties>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.websocket</groupId>
<artifactId>javax.websocket-api</artifactId>
<version>1.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.webfirmframework</groupId>
<artifactId>wffweb</artifactId>
<version>RELEASE</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jdk8</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-test</artifactId>
<version>${kotlin.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
</includes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.4.0</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<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>
<configuration>
<jvmTarget>1.8</jvmTarget>
</configuration>
</plugin>
</plugins>
</build>
</project>
4.0.0
com.wfweb
kotlinminimalproductionsample
0.0.1
战争
yyyyMMddHHmmss
UTF-8
UTF-8
1.8
1.8
1.2.21
javax.servlet
javax.servlet-api
3.1.0
假如
javax.websocket
javax.websocket-api
1.1
假如
com.webfirmframework
wffweb
释放
org.jetbrains.kotlin
kotlin-stdlib-jdk8
${kotlin.version}
org.jetbrains.kotlin
科特林试验
${kotlin.version}
测试
src/main/java
**/*.物业
org.codehaus.mojo
execmaven插件
1.4.0
org.apache.maven.plugins
maven编译器插件
3.3
1.8
1.8
org.jetbrains.kotlin
kotlin maven插件
${kotlin.version}
编译
编译
编译
测试编译
测试编译
测试编译
1.8
您的Java代码在不同的模块中吗?@SergeyMashkov不,是同一个模块。我在gradle遇到了同样的问题。您找到解决方案了吗?@DANGFan-nope,对不起。如果我有一个只支持Kotlin的项目,并且想使用maven(这样可以在pom中指定依赖项),我是否只使用pom.xml?与不明确提及SourceDir(例如,在官方手册中)有什么区别@卢卡塞德我发布了这个配置,因为它被证明是有效的。当我发布此配置时,我使用了Kotlin的测试前版本及其Maven插件。因此,它现在可能变得更有弹性,并推断出以前没有的东西。
<plugins>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>process-sources</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<sourceDirs>
<source>src/main/java</source>
<source>src/main/kotlin</source>
<source>src/main/resources</source>
</sourceDirs>
</configuration>
</execution>
<execution>
<id>test-compile</id>
<phase>process-test-sources</phase>
<goals>
<goal>test-compile</goal>
</goals>
<configuration>
<sourceDirs>
<source>src/test/java</source>
<source>src/test/kotlin</source>
<source>src/test/resources</source>
</sourceDirs>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<build>
<sourceDirectory>${project.basedir}/src/main/java</sourceDirectory>
<testSourceDirectory>${project.basedir}/src/test/java</testSourceDirectory>
<plugins>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<sourceDirs>
<source>src/main/kotlin</source>
</sourceDirs>
</configuration>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
<configuration>
<sourceDirs>
<source>src/test/kotlin</source>
</sourceDirs>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.wffweb</groupId>
<artifactId>kotlinminimalproductionsample</artifactId>
<version>0.0.1</version>
<packaging>war</packaging>
<!--
To package as war:- mvn clean kotlin:compile package
-->
<properties>
<maven.build.timestamp.format>yyyyMMddHHmmss</maven.build.timestamp.format>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<kotlin.version>1.2.21</kotlin.version>
</properties>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.websocket</groupId>
<artifactId>javax.websocket-api</artifactId>
<version>1.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.webfirmframework</groupId>
<artifactId>wffweb</artifactId>
<version>RELEASE</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jdk8</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-test</artifactId>
<version>${kotlin.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
</includes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.4.0</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<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>
<configuration>
<jvmTarget>1.8</jvmTarget>
</configuration>
</plugin>
</plugins>
</build>
</project>