重新打包 Spring Boot Jar 时如何修复压缩错误

Question

我需要将静态 UI 文件注入现有的 Spring 启动可执行 jar。为此，我将 jar 作为依赖项，并使用 maven ant运行插件来：

重新压缩 jar

 <plugin>
   <artifactId>maven-assembly-plugin</artifactId>
   <version>3.1.0</version>
   <executions>
     <execution>
       <id>build-ui-kit</id>
       <phase>package</phase>
       <goals>
         <goal>single</goal>
       </goals>
       <configuration>
         <descriptors>
           <descriptor>ui-assembly-config.xml</descriptor>
         </descriptors>
       </configuration>
     </execution>
   </executions>
 </plugin>

 <plugin>
   <groupId>org.apache.maven.plugins</groupId>
   <artifactId>maven-antrun-plugin</artifactId>
   <version>1.6</version>
   <executions>
     <execution>
       <id>repack</id>
       <phase>compile</phase>
       <goals>
         <goal>run</goal>
       </goals>
       <configuration>
         <target>
           <!-- unzip jar -->
           <unzip src="${com.xxx:xxx:jar}" dest="${project.build.directory}/tmp"/>
           <!-- make resources dir in unzipped jar dir -->
           <mkdir dir="${project.build.directory}/tmp/resources"/>
           <!-- copy ui files to resources dir -->
           <copy todir="${project.build.directory}/tmp/resources">
             <fileset dir="${basedir}/../../src/ui/dist">
               <include name="*"/>
             </fileset>
           </copy>
           <!-- zip tmp dir to create txapps jar  -->
           <zip basedir="${project.build.directory}/tmp" destfile="${project.build.directory}/yyyy.jar"/>
         </target>
       </configuration>
     </execution>
   </executions>
 </plugin>

这一切似乎都有效；但是，当我运行 Jar 时，出现以下错误：

Caused by: java.lang.IllegalStateException: Unable to open nested entry 'BOOT-INF/lib/HdrHistogram-2.1.12.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

当我检查 Jar 的内容时，一切看起来都很好（库似乎没有被压缩）。知道这里发生了什么或有更好的重新打包解决方案的建议吗？谢谢！

Answer 1

我最终使用 exec-maven-plugin 和 Java jar 实用程序来添加 UI 文件。请参见下面的代码（ui 文件位于 /tmp/resources 目录中）：

<plugin>
      <groupId>org.codehaus.mojo</groupId>
      <artifactId>exec-maven-plugin</artifactId>
      <version>3.0.0</version>
      <executions>
        <execution>
          <id>update-jar</id>
          <phase>package</phase>
          <goals>
            <goal>exec</goal>
          </goals>
        </execution>
      </executions>
      <configuration>
        <executable>jar</executable>
        <workingDirectory>${project.build.directory}/tmp</workingDirectory>
        <arguments>
          <argument>uf</argument>
          <argument>dependencies/myjar-${version}.jar</argument>
          <argument>resources</argument>
        </arguments>
      </configuration>
    </plugin>

重新打包 Spring Boot Jar 时如何修复压缩错误

How to fix compression error when repackaging Spring Boot Jar

java

spring-boot

maven

maven-assembly-plugin

maven-antrun-plugin