如何用Spring Boot构建两个重新打包的JAR

Question

Execution default of goal org.springframework.boot:spring-boot-maven-plugin:1.3.0.RELEASE:repackage failed: Unable to find a single main class from the following candidates [com.mystuff.tools.b4commandline.Application, com.mystuff.tools.loadtester.Application]

<plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <executions>
                <execution>
                    <id>${artifactId}</id>
                    <goals>
                        <goal>repackage</goal>
                    </goals>
                    <configuration>
                        <mainClass>com.mystuff.tools.loadtester.Application</mainClass>
                        <finalName>${artifactId}</finalName>
                    </configuration>
                </execution>
                <execution>
                    <id>b4-commandline</id>
                    <goals>
                        <goal>repackage</goal>
                    </goals>
                    <configuration>
                        <mainClass>com.mystuff.tools.b4commandline.Application</mainClass>
                        <finalName>b4-commandline</finalName>
                    </configuration>
                </execution>
            </executions>
        </plugin>

任何帮助都是很好的。我在stackoverflow上看到了maven-plugin的配方，但这些配方不适用于Spring-boot。

Answer 1

我无法在一个构建中同时工作（我并不是说这是不可能的），但是一个选择是定义两个maven概要文件：

<profiles>
    <profile>
        <id>one</id>
        <activation>
            <property>
                <name>one</name>
            </property>
        </activation>

        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <executions>
                        <execution>
                            <id>default</id>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                            <configuration>
                                <mainClass>com.xyz.LauncherOne</mainClass>
                                <finalName>one</finalName>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>

    </profile>

    <profile>
        <id>two</id>
        <activation>
            <property>
                <name>two</name>
            </property>
        </activation>

        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <executions>
                        <execution>
                            <id>default</id>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                            <configuration>
                                <mainClass>com.xyz.LauncherTwo</mainClass>
                                <finalName>two</finalName>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>
    </profile>
</profiles>

然后，使用两个配置文件构建它两次（在我的代码示例中用一个属性激活）：

$ mvn -Done clean install
$ mvn -Dtwo clean install

它创建:one.jar和two.jar