场景

打包运行报错：打包运行报no main manifest attribute, 包的大小也只有几十kb

解决

spring-boot-maven-plugin添加repackage配置,这会把引入jar

          <plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>2.2.4.RELEASE</version><!--                2.2.4.RELEASE--><executions><execution><goals><goal>repackage</goal> <!-- 将引入的 jar 打入其中 --></goals></execution></executions></plugin>