kotlin入门教程

最新推荐文章于 2025-06-26 21:38:43 发布

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#kotlin

本文介绍了解决Kotlin Maven项目中Eclipse配置错误的方法，通过调整POM文件中的pluginManagement标签来修复错误，并提供了具体的配置代码示例。

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在配置kotlin的MAVEN项目中，Eclipse出现以下错误：

Plugin execution not covered by lifecycle configuration: org.jetbrains.kotlin:kotlin-maven-plugin:1.2.41:compile (execution: compile, phase: compile)

解决办法如下，在POM配置文件的plugins标签上包装pluginManagement标签，最终的代码如下：

<build>
        <sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
        <testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
        <pluginManagement>
	        <plugins>
	            <plugin>
	                <groupId>org.springframework.boot</groupId>
	                <artifactId>spring-boot-maven-plugin</artifactId>
	            </plugin>
	            <plugin>
	                <groupId>org.jacoco</groupId>
	                <artifactId>jacoco-maven-plugin</artifactId>
	                <version>${jacoco-maven-plugin.version}</version>
	                <executions>
	                    <execution>
	                        <id>pre-unit-tests</id>
	                        <goals>
	                            <goal>prepare-agent</goal>
	                        </goals>
	                        <configuration>
	                            <!-- Sets the path to the file which contains the execution data. -->
	                            <destFile>${project.testresult.directory}/coverage/jacoco/jacoco.exec</destFile>
	                        </configuration>
	                    </execution>
	                    <!-- Ensures that the code coverage report for unit tests is created after unit tests have been run -->
	                    <execution>
	                        <id>post-unit-test</id>
	                        <phase>test</phase>
	                        <goals>
	                            <goal>report</goal>
	                        </goals>
	                        <configuration>
	                            <dataFile>${project.testresult.directory}/coverage/jacoco/jacoco.exec</dataFile>
	                            <outputDirectory>${project.testresult.directory}/coverage/jacoco</outputDirectory>
	                        </configuration>
	                    </execution>
	                </executions>
	            </plugin>
	            <plugin>
	                <artifactId>kotlin-maven-plugin</artifactId>
	                <groupId>org.jetbrains.kotlin</groupId>
	                <configuration>
	                    <args>
	                        <arg>-Xjsr305=strict</arg>
	                    </args>
	                    <compilerPlugins>
	                        <plugin>spring</plugin>
	                    </compilerPlugins>
	                </configuration>
	                <dependencies>
	                    <dependency>
	                        <groupId>org.jetbrains.kotlin</groupId>
	                        <artifactId>kotlin-maven-allopen</artifactId>
	                        <version>${kotlin.version}</version>
	                    </dependency>
	                </dependencies>
	            </plugin>
	        </plugins>
        </pluginManagement>
    </build>

导入 kotlin项目

Error:Kotlin: Supertypes of the following classes cannot be resolved. Please make sure you have the required dependencies in the classpath:
    class org.springframework.http.HttpStatus, unresolved supertypes: java.lang.Enum
    class org.springframework.data.jpa.repository.JpaRepository, unresolved supertypes: java.lang.Object
    class org.springframework.data.repository.PagingAndSortingRepository, unresolved supertypes: java.lang.Object
    class org.springframework.data.repository.CrudRepository, unresolved supertypes: java.lang.Object
    class org.springframework.data.repository.Repository, unresolved supertypes: java.lang.Object
    class org.springframework.data.repository.query.QueryByExampleExecutor, unresolved supertypes: java.lang.Object
    class javax.persistence.GenerationType, unresolved supertypes: java.lang.Enum
    class org.springframework.data.domain.Pageable, unresolved supertypes: java.lang.Object
    class org.springframework.data.domain.Sort, unresolved supertypes: java.lang.Object, java.io.Serializable
    class org.springframework.data.util.Streamable, unresolved supertypes: java.lang.Object, java.lang.Iterable
    class org.springframework.data.domain.Example, unresolved supertypes: java.lang.Object

14:19	Compilation completed with 48 errors and 0 warnings in 7 s 344 ms

14:25	Maven 3.3.1+ requires JDK 1.7+. Please set appropriate JDK at 
		Settings | Build, Execution, Deployment | Build Tools | Maven | Runner | JRE

14:25	Error running 'mvn install': No JDK specified

14:25	Maven 3.3.1+ requires JDK 1.7+. Please set appropriate JDK at 
		Settings | Build, Execution, Deployment | Build Tools | Maven | Runner | JRE

14:25	Error running 'mvn install': No JDK specified

修改maven 设置