打包插件使用+log4j

  <build>

        <plugins>

            <plugin>

                <groupId>org.apache.maven.plugins</groupId>

                <artifactId>maven-shade-plugin</artifactId>

                <version>3.1.1</version>

                <executions>

                    <execution>

                        <phase>package</phase>

                        <goals>

                            <goal>shade</goal>

                        </goals>

                        <configuration>

                            <artifactSet>

                                <excludes>

                                    <exclude>com.google.code.findbugs:jsr305</exclude>

                                    <exclude>org.slf4j:*</exclude>

                                    <exclude>log4j:*</exclude>

                                    <exclude>org.apache.hadoop:*</exclude>

                                </excludes>

                            </artifactSet>

                            <filters>

                                <filter>

                                    <!-- Do not copy the signatures in the META-INF folder.Otherwise, this might cause SecurityExceptions when using the JAR. -->

                                    <!-- 打包时不复制META-INF下的签名文件，避免报非法签名文件的SecurityExceptions异常-->

                                    <artifact>*:*</artifact>

                                    <excludes>

                                        <exclude>META-INF/*.SF</exclude>

                                        <exclude>META-INF/*.DSA</exclude>

                                        <exclude>META-INF/*.RSA</exclude>

                                    </excludes>

                                </filter>

                            </filters>

                            <transformers combine.children="append">

                                <!-- The service transformer is needed to merge META-INF/services files -->

                                <!-- connector和format依赖的工厂类打包时会相互覆盖，需要使用ServicesResourceTransformer解决-->

                                <transformer

                                        implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>

                            </transformers>

                        </configuration>

                    </execution>

                </executions>

            </plugin>

        </plugins>

    </build>

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.target=System.out

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %10p (%c:%M) - %m%n

log4j.rootLogger=error,stdout