java - ./mvnw spring-boot :run command displays "Spring was unexpected this time" message

Question

Spring Boot guide给出了一个演示示例，在其中运行应用程序的示例。在我们使用构建框架maven的情况下，将使用'complete'文件夹/目录中的./mvnw spring-boot:run命令。我从Windows Power Shell和命令提示符处尝试了此命令，但显示消息“这次 Spring 出乎意料”。

E:
├───src
    ├───main
    │   ├───java
    │   │   └───com
    │   │       └───example
    │   │           └───demo
    │   └───resources
    └───test
        └───java
            └───com
                └───example
                    └───demo

我正在使用Windows7。命令提示符内容如下:

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.
    
E:\MyLearnings(Tech Front)\Spring Boot Learning\gs-spring-boot-master\gs-spring-boot-master\complete>mvnw spring-boot:run
\Spring was unexpected at this time.
    
E:\MyLearnings(Tech Front)\Spring Boot Learning\gs-spring-boot-master\gs-spring-boot-master\complete>./mvnw spring-boot:run
'.' is not recognized as an internal or external command, operable program or batch file.
    
E:\MyLearnings(Tech Front)\Spring Boot Learning\gs-spring-boot-master\gs-spring-boot-master\complete>.\mvnw spring-boot:run
\Spring was unexpected at this time.
    
E:\MyLearnings(Tech Front)\Spring Boot Learning\gs-spring-boot-master\gs-spring-boot-master\complete>

Answer 1

我能够在以下命令的帮助下运行该应用程序:

mvn spring-boot:run