IDEA如何把MAVEN项目打包成jar包并且用命令行启动

首先在pom文件里引入插件

 <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>1.4</version>
                <configuration>
                    <createDependencyReducedPom>true</createDependencyReducedPom>
                </configuration>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>Main.Main</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

重构

我们首先要清除缓存 点击clean

然后点击package

会自动打包

等一会 找到target目录下有jar包

如果报错得一行一行去找报错的原因

然后clean 再 package

我们打开命令行

启动jar包