用maven打了一个可运行jar，但是运行提示找不到类

Question

<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>
  <groupId>oms</groupId>
  <artifactId>international</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>

  <dependencies>
        <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.5.5</version>
        <scope>compile</scope>
    </dependency>

    <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>fastjson</artifactId>
        <version>1.2.54</version>
        <scope>compile</scope>
    </dependency>


    <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
        <version>3.8.1</version>
    </dependency>




  </dependencies>

  <build>
    <pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <archive>
                        <manifest>
                            <mainClass>oms.window.Windowtest</mainClass>
                            <addClasspath>true</addClasspath>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                  <source>1.8</source>
                  <target>1.8</target>
                </configuration>
          </plugin>

        </plugins>
    </pluginManagement>
  </build>
</project>

Answer 1

您好! 您只使用了maven-jar-plugin对项目代码进行打包, 但没有将依赖关系打包进去, 可以添加maven-dependency-plugin.

也可以尝试一下使用下面的插件(并去掉你原来的).

    <build>
        <plugins>
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.2.1</version>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

顺便说一下, 如果你使用当前的做法, 并将依赖关系的jar包放在classpath下, 则也能运行.

另外, 使用我提供的插件, 依赖关系如果为 <scope>provided</scope>则这个依赖关系不会被打包进去, 方便精准控制.

望采纳.