spring-boot-01-helloworld-1.0-SNAPSHOT.jar中没有主清单属性

在pom.xml中的

<build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.4.RELEASE</version>
            </plugin>
        </plugins>
    </build>

添加

                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>

修改后为

  <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.4.RELEASE</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

再次重新打包jar包，在target中 将新增original结尾的文件

再重新执行java -jar spring-boot-01-helloworld-1.0-SNAPSHOT.jar，即可