第一次使用maven后的Java.lang.NoClassDefFoundError？

Question

我一直在为我的公司创建一个带有java的soap服务器,最近我转而使用Bone-CP和Maven来导入所有必需的第三方程序.完成bone-CP后,我使用了server命令

jar -cvfm SoapServer.jar manifest.txt SoapServer

当我将它转移到我的服务器并尝试运行它时,我收到此错误:

Exception in thread "main" java.lang.NoClassDefFoundError: SoapServer/SoapServer (wrong name: com/test/SoapServer/SoapServer)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
    at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)

我认为导致问题的唯一想法是maven没有将所需的JAR打包到程序中？如果是这种情况,我只需要下载它们并将它们添加到类路径中吗？

Answer 1

如果您需要将所有依赖项打包在可执行jar中,那么请配置您的pom

<build>
    <plugins>
      <plugin>
         <artifactId>maven-jar-plugin</artifactId>
         <configuration>
           <archive>
             <manifest>
               <addClasspath>true</addClasspath>
               <classpathPrefix>lib/</classpathPrefix>
               <mainClass>com.something.YourMainClass</mainClass>
             </manifest>
           </archive>
         </configuration>
      </plugin>
    </plugins>
  </build>

上面的块将把lib /中的所有库添加到manifest classpath条目中的classpath

并将所有依赖项复制到lib目录

<plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-dependency-plugin</artifactId>
        <version>2.1</version>
        <executions>
          <execution>
            <id>copy-dependencies</id>
            <phase>package</phase>
            <goals>
              <goal>copy-dependencies</goal>
            </goals>
            <configuration>
              <outputDirectory>${project.build.directory}/lib</outputDirectory>
              <overWriteReleases>false</overWriteReleases>
              <overWriteSnapshots>false</overWriteSnapshots>
              <overWriteIfNewer>true</overWriteIfNewer>
            </configuration>
          </execution>
        </executions>
      </plugin>