Question

我正在使用springboot应用程序。使用java -jar从命令行运行我的app.jar时，我收到以下错误

java.io.FileNotFoundException: C:\MyApp.jar!\lib\jackson-databind-2.6.5.jar (The system cannot find the path specified)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(Unknown Source)
    at java.io.FileInputStream.<init>(Unknown Source)
    at java.io.FileInputStream.<init>(Unknown Source)
    at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
    at java.net.URL.openStream(Unknown Source)

...

java.io.FileNotFoundException: C:\MyApp.jar!\lib\jackson-annotations-2.6.5.jar (The system cannot find the path specified)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(Unknown Source)
    at java.io.FileInputStream.<init>(Unknown Source)
    at java.io.FileInputStream.<init>(Unknown Source)
    at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
    at java.net.URL.openStream(Unknown Source)
    at com.impetus.annovention.Discoverer.getResourceIterator(Discoverer.java:298)
    at com.impetus.annovention.Discoverer.discover(Discoverer.java:142)

这些错误，我得到的是多个罐子，虽然这些罐子可以在Spring boot fat jar下的lib文件夹中找到。

现在，为了解决这个问题，我可以使用requiresUnpack，如下所示。

          <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <version>${version-spring-boot}</version>
        <configuration>
           <requiresUnpack>
              <dependency>
                 <groupId>xxx</groupId>
                 <artifactId>xxx</artifactId>
              </dependency>
              <dependency>
                 <groupId>yyy</groupId>
                 <artifactId>yyy</artifactId>
              </dependency>
           </requiresUnpack>
        </configuration>
        <executions>
           <execution>
              <goals>
                 <goal>repackage</goal>
              </goals>
           </execution>
        </executions>
     </plugin>

现在，问题出在我的所有罐子上，我已经在requiresUnpack标签中逐一添加了它们。

但我正在寻找一些通用的方法来做到这一点。像一些衬里，它将修复所有这些.SO，有没有办法做到这一点？

编辑：添加我使用的其他插件......

<plugin>
            <groupId>org.bsc.maven</groupId>
            <artifactId>maven-processor-plugin</artifactId>
            <version>2.2.4</version>
            <configuration>
               <defaultOutputDirectory>
                  ${project.build.directory}/generated-sources
               </defaultOutputDirectory>
               <processors>
                  <processor>org.mapstruct.ap.MappingProcessor</processor>
               </processors>
            </configuration>
            <executions>
               <execution>
                  <id>process</id>
                  <phase>generate-sources</phase>
                  <goals>
                     <goal>process</goal>
                  </goals>
               </execution>
            </executions>
            <dependencies>
               <dependency>
                  <groupId>org.mapstruct</groupId>
                  <artifactId>mapstruct-processor</artifactId>
                  <version>1.0.0.CR1</version>
               </dependency>
            </dependencies>
         </plugin>
 <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>build-helper-maven-plugin</artifactId>
            <version>1.7</version>
            <executions>
               <execution>
                  <id>add-source</id>
                  <phase>generate-sources</phase>
                  <goals>
                     <goal>add-source</goal>
                  </goals>
                  <configuration>
                     <sources>
                        <source>target/generated-sources</source>
                     </sources>
                  </configuration>
               </execution>
            </executions>
         </plugin>

这些，我用于Mapstruct的2个插件。

Answer 1

正如我在评论中所说，为什么不使用经典的依赖关系，例如：

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.6.5</version>
</dependency>

Springboot：从命令行运行时未发现Jar异常

1 个答案: