【JAVA】idea maven quickstart 項目打包 提示沒有“沒有主清單屬性”

修改pom.xml,可將項目創建時自動生成的默認plugs刪除（idea側邊欄都有這項plug，所有不會影響使用）,打包后的jar名字是mian類的名字

<build>
        <finalName>App</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.2.1</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>pres.ndz.simple.App</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>