Question

我有一个Java / Scala混合项目。在Intellij建设时，事情很好。但是，尝试从命令行运行Maven构建时，在运行“mvn clean install＆＃39;”时会出现此错误：

    [ERROR] /IdeaProjects/user-lib-common/src/main/scala/com/test/userlib/rest/UserServiceRestClient.scala:12: error: object model is not a member of package com.test.userlib
    [ERROR] import com.test.userlib.model.cte.{ItemResponse, CteUser}
    [ERROR]                                      ^
    [ERROR] /IdeaProjects/user-lib-common/src/main/scala/com/test/userlib/rest/UserServiceRestClient.scala:13: error: object utils is not a member of package com.test.userlib
    [ERROR] import com.test.userlib.utils.UserLibProperties
    [ERROR]                                      ^
    [ERROR] /IdeaProjects/user-lib-common/src/main/scala/com/test/userlib/rest/UserServiceRestClient.scala:26: error: not found: value UserLibProperties
    [ERROR]       .hosts(UserLibProperties.CTE_USERSERVICE_HOST + ":" + UserLibProperties.CTE_USERSERVICE_PORT)
    [ERROR]              ^
    [ERROR] /IdeaProjects/user-lib-common/src/main/scala/com/test/userlib/rest/UserServiceRestClient.scala:32: error: not found: value UserLibProperties
    [ERROR]     ClientAuthTlsConfigUtil.createSslContext(new File(UserLibProperties.CTE_USERSERVICE_KEYSTORE),UserLibProperties.CTE_USERSERVICE_KEYSTORE_PASSWORD,new File(UserLibProperties.CTE_USERSERVICE_TRUSTSTORE),UserLibProperties.CTE_USERSERVICE_TRUSTSTORE_PASSWORD)
    [ERROR]                                                       ^
    [ERROR] /IdeaProjects/user-lib-common/src/main/scala/com/test/userlib/rest/UserServiceRestClient.scala:35: error: not found: type CteUser
    [ERROR]   protected def getUser(dn :String) :CteUser = {
    [ERROR]                                      ^
    [ERROR] /IdeaProjects/user-lib-common/src/main/scala/com/test/userlib/rest/UserServiceRestClient.scala:36: error: not found: value UserLibProperties
    [ERROR]     val rb = RequestBuilder().url(s"${UserLibProperties.CTE_USERSERVICE_ENDPOINT}/user?dn=${URLEncoder.encode(dn,"utf-8")}&aacAttribs=true").buildGet
    [ERROR]                                       ^
    [ERROR] /IdeaProjects/user-lib-common/src/main/scala/com/test/userlib/rest/UserServiceRestClient.scala:42: error: not found: type ItemResponse
    [ERROR]       case HttpResponseStatus.OK => new ObjectMapper().readValue(respTry.get.getContent.toString("UTF-8"), classOf[ItemResponse]).getItem.getUser
    [ERROR]                                                                                                                    ^
    [ERROR] 7 errors found

所以，很明显我的Scala类没有找到它需要的Java依赖项。这是我项目的结构：

这是我的pom.xml的构建部分：

   <build>
        <sourceDirectory>src/main/scala</sourceDirectory>
        <testSourceDirectory>src/test/scala</testSourceDirectory>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <executions>
                <execution>
                    <id>scala-compile-first</id>
                    <phase>process-resources</phase>
                    <goals>
                        <goal>add-source</goal>
                        <goal>compile</goal>
                    </goals>
                </execution>
                <execution>
                    <id>scala-test-compile</id>
                    <phase>process-test-resources</phase>
                    <goals>
                        <goal>testCompile</goal>
                    </goals>
                </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

我是否必须以某种方式将类路径添加到Scala编译器？

Answer 1

我认为UserLibProperties文件应该在适当的文件扩展名UserLibProperties.scala中。请检查您的文件夹并执行列表命令并检查文件扩展名，在Intelij中它将无法正常扩展。

Answer 2

我认为，SBT是建立混合项目的最佳方式。

例如： https://github.com/databricks/learning-spark/blob/master/build.sbt

它没有什么学习曲线，但值得在SBT投入时间。

Scala / Java Project在Maven编译期间未找到依赖项

2 个答案: