Spring Boot如何創建非可執行jar包

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我們經常會有這種場景，只需要把Spring Boot打成普通的jar包，不包含配置文件，供其他程序應用

本文介紹如何使用Maven將Spring Boot應用打成普通的非可執行jar包。

配置maven-jar-plugin

<build>
  <plugins>
    <plugin>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-maven-plugin</artifactId>
      <configuration>
        <classifier>exec</classifier>
      </configuration>
    </plugin>
    <plugin>
      <artifactId>maven-jar-plugin</artifactId>
      <executions>
        <execution>
          <id>exec</id>
          <phase>package</phase>
          <goals>
            <goal>jar</goal>
          </goals>
          <configuration>
            <classifier>exec</classifier>
          </configuration>
        </execution>
        <execution>
          <phase>package</phase>
          <goals>
            <goal>jar</goal>
          </goals>
          <configuration>
            <!-- Need this to ensure application.yml is excluded -->
            <forceCreation>true</forceCreation>
            <excludes>
              <exclude>application.yml</exclude>
            </excludes>
          </configuration>
        </execution>
      </executions>
    </plugin>
  </plugins>
</build>

執行mvn clean package打包

localhost:spring-boot-tutorial-non-executable majunwei$ mvn clean package
[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for com.majunwei:spring-boot-tutorial-non-executable:jar:0.0.1-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-jar-plugin is missing. @ com.majunwei:spring-boot-tutorial-non-executable:[unknown-version], /Users/majunwei/Documents/work/spring-boot-tutorial/spring-boot-tutorial-non-executable/pom.xml, line 26, column 17
[WARNING] 'build.plugins.plugin.version' for org.springframework.boot:spring-boot-maven-plugin is missing. @ com.majunwei:spring-boot-tutorial-non-executable:[unknown-version], /Users/majunwei/Documents/work/spring-boot-tutorial/spring-boot-tutorial-non-executable/pom.xml, line 19, column 17
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] 
[INFO]                                     
[INFO] ------------------------------------------------------------------------
[INFO] Building spring-boot-tutorial-non-executable 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ spring-boot-tutorial-non-executable ---
[INFO] Deleting /Users/majunwei/Documents/work/spring-boot-tutorial/spring-boot-tutorial-non-executable/target
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ spring-boot-tutorial-non-executable ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ spring-boot-tutorial-non-executable ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to /Users/majunwei/Documents/work/spring-boot-tutorial/spring-boot-tutorial-non-executable/target/classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ spring-boot-tutorial-non-executable ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/majunwei/Documents/work/spring-boot-tutorial/spring-boot-tutorial-non-executable/src/test/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ spring-boot-tutorial-non-executable ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ spring-boot-tutorial-non-executable ---
[INFO] No tests to run.
[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ spring-boot-tutorial-non-executable ---
[INFO] Building jar: /Users/majunwei/Documents/work/spring-boot-tutorial/spring-boot-tutorial-non-executable/target/spring-boot-tutorial-non-executable-0.0.1-SNAPSHOT.jar
[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (exec) @ spring-boot-tutorial-non-executable ---
[INFO] Building jar: /Users/majunwei/Documents/work/spring-boot-tutorial/spring-boot-tutorial-non-executable/target/spring-boot-tutorial-non-executable-0.0.1-SNAPSHOT-exec.jar
[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (default) @ spring-boot-tutorial-non-executable ---
[INFO] Building jar: /Users/majunwei/Documents/work/spring-boot-tutorial/spring-boot-tutorial-non-executable/target/spring-boot-tutorial-non-executable-0.0.1-SNAPSHOT.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.692 s
[INFO] Finished at: 2017-08-07T18:22:50+08:00
[INFO] Final Memory: 17M/174M
[INFO] ------------------------------------------------------------------------

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