Maven使用Spring Boot Parent創建可執行jar包

Question

我需要用我的應用程序制作一個可執行的jar包。

這是我的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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.nws</groupId>
    <artifactId>rest-signer</artifactId>
    <version>0.1</version>
    <name>rest-signer</name>
    <description>rest wrapper for signing lib</description>

<properties>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jersey</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <!--<dependency>-->
        <!--<groupId>org.glassfish.jersey.media</groupId>-->
        <!--<artifactId>jersey-media-multipart</artifactId>-->
        <!--<scope>compile</scope>-->
    <!--</dependency>-->
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <configuration>
                <archive>
                    <compress>false</compress>
                    <manifest>
                        <addClasspath>true</addClasspath>
                        <useUniqueVersions>false</useUniqueVersions>
                        <classpathPrefix>lib/</classpathPrefix>
                        <mainClass>com.nws.restsigner.RestSignerApplication</mainClass>
                    </manifest>
                </archive>
            </configuration>
        </plugin>

        <plugin>
            <groupId>com.googlecode.addjars-maven-plugin</groupId>
            <artifactId>addjars-maven-plugin</artifactId>
            <version>1.0.5</version>
            <executions>
                <execution>
                    <goals>
                        <goal>add-jars</goal>
                    </goals>
                    <configuration>
                        <resources>
                            <resource>
                                <directory>${basedir}/lib</directory>
                            </resource>
                        </resources>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <plugin>
            <artifactId>maven-dependency-plugin</artifactId>
            <executions>
                <execution>
                    <id>copy-dependencies</id>
                    <phase>prepare-package</phase>
                    <goals>
                        <goal>copy-dependencies</goal>
                    </goals>
                    <configuration>
                        <outputDirectory>${project.build.directory}/lib</outputDirectory>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.2.1</version>
            <configuration>
                <!-- put your configurations here -->
                <minimizeJar>false</minimizeJar>
                <filters>
                    <filter>
                        <artifact>*:*</artifact>
                        <excludes>
                            <exclude>META-INF/*.SF</exclude>
                            <exclude>META-INF/*.DSA</exclude>
                            <exclude>META-INF/*.RSA</exclude>
                        </excludes>
                    </filter>
                </filters>
            </configuration>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

我用以下命令構建軟件包： mvn clean package -DskipTests=true並由java -jar運行，我得到了：

 Exception in thread "main" java.lang.IllegalStateException: Failed to get nested archive for entry BOOT-INF/lib/spring-boot-starter-jersey-2.1.2.RELEASE.jar
        at org.springframework.boot.loader.archive.JarFileArchive.getNestedArchive(JarFileArchive.java:108)
        at org.springframework.boot.loader.archive.JarFileArchive.getNestedArchives(JarFileArchive.java:86)
        at org.springframework.boot.loader.ExecutableArchiveLauncher.getClassPathArchives(ExecutableArchiveLauncher.java:70)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:49)
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)
    Caused by: java.io.IOException: Unable to open nested jar file 'BOOT-INF/lib/spring-boot-starter-jersey-2.1.2.RELEASE.jar'
        at org.springframework.boot.loader.jar.JarFile.getNestedJarFile(JarFile.java:256)
        at org.springframework.boot.loader.jar.JarFile.getNestedJarFile(JarFile.java:241)
        at org.springframework.boot.loader.archive.JarFileArchive.getNestedArchive(JarFileArchive.java:103)
        ... 4 more
    Caused by: java.lang.IllegalStateException: Unable to open nested entry 'BOOT-INF/lib/spring-boot-starter-jersey-2.1.2.RELEASE.jar'. It has been compressed and nested jar files must be stored without compression. Please check the mechanism used to create your executable jar file
        at org.springframework.boot.loader.jar.JarFile.createJarFileFromFileEntry(JarFile.java:284)
        at org.springframework.boot.loader.jar.JarFile.createJarFileFromEntry(JarFile.java:264)
        at org.springframework.boot.loader.jar.JarFile.getNestedJarFile(JarFile.java:252)
        ... 6 more

mvn --version Apache Maven 3.6.0（NON-CANONICAL_2018-11-06T03：14：22 + 01：00_root; 2018-11-06T03：14：22 + 01：00）Maven主頁：/ opt / maven Java版本： 1.8.0_192，供應商：Oracle Corporation，運行時：/ usr / lib / jvm / java-8-openjdk / jre默認語言環境：en_US，平台編碼：UTF-8操作系統名稱：“ linux”，版本：“ 4.20.0- arch1-1-arch”，拱門：“ amd64”，家庭：“ unix”

那么我應該怎樣改變包裝才能最終運行呢？

Answer 1

spring-boot-maven-plugin默認創建可執行的jar。 因此，您不必手動創建它。

基本上，將其包含在pom.xml就足夠了：

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.1.2.RELEASE</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

如果您的用法需要一些自定義配置（例如，設置主類），則可以在此處找到好的文檔。