Question

打包Akka应用程序。

嗨，我正在尝试将我的应用程序打包到可执行文件Jar中。以下是我的Pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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.personalProjects</groupId>
    <artifactId>MyAkkaProject</artifactId>
    <version>1.0</version>

    <build>
        <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>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>1.5</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <shadedArtifactAttached>true</shadedArtifactAttached>
                            <shadedClassifierName>allinone</shadedClassifierName>
                            <artifactSet>
                                <includes>
                                    <include>*:*</include>
                                </includes>
                            </artifactSet>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                    <resource>reference.conf</resource>
                                </transformer>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <manifestEntries>
                                        <Main-Class>akka.Main</Main-Class>
                                    </manifestEntries>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <dependency>
            <groupId>com.typesafe.akka</groupId>
            <artifactId>akka-stream_2.12</artifactId>
            <version>2.5.18</version>
        </dependency>
        <dependency>
            <groupId>com.typesafe.akka</groupId>
            <artifactId>akka-stream-kafka_2.12</artifactId>
            <version>1.0-M1</version>
        </dependency>
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>42.2.1</version>
        </dependency>

        <dependency>
            <groupId>org.mongodb</groupId>
            <artifactId>mongodb-driver</artifactId>
            <version>3.4.3</version>
        </dependency>

    </dependencies>

</project>

我似乎无法使用Jar，它指出缺少akka.streams配置。

我查看了官方文档here 但这似乎不起作用。

如果我将所有Jar复制到输出目录，则一切正常，但问题似乎出在我尝试创建其中包含所有依赖项的big fat jar时。

我的MANIFEST.INF在下面：

Manifest-Version: 1.0
Main-Class: MyAkkaProject.App

其中App是带有psvm的类，而MyAkkaProject`是程序包名称

Answer 1

我解决了问题，当我运行他的项目甚至构建它时，问题出在我的IDE上，它没有使用Maven Lifecycle命令，因此未触发该插件。

Akka缺少配置属性Akka.Version Akka.Stream

1 个答案: