大致：想要使用Spring Shell，则项目需要是 Spring Boot项目，下面贴出结构和代码

1.POM依赖

     
       
      
       4.0.0
        
        
          
       
        org.springframework.boot
           
       
        spring-boot-starter-parent
           
       
        2.1.1.RELEASE
           
        
         
        
      
       my
        
      
       SpringShellDemo
        
      
       1.0-SNAPSHOT
        
      
       SpringShellDemo
        
        
      
       http://www.example.com
        
          
       
        1.8
         
        
        
          
             
        
         org.springframework.boot
              
        
         spring-boot-starter-web
              
        
         2.1.1.RELEASE
            
           
             
        
         org.springframework.boot
              
        
         spring-boot-starter-test
              
        
         2.1.1.RELEASE
              
        
         test
            
           
             
        
         org.springframework.boot
              
        
         spring-boot-starter
              
        
         2.1.1.RELEASE
            
           
             
        
         org.springframework.shell
              
        
         spring-shell-starter
              
        
         2.0.0.RELEASE
            
         
        
        
          
             
                
         
          org.springframework.boot
                 
         
          spring-boot-maven-plugin
                 
         
          2.0.0.RELEASE
               
            
         
      
     

2.DemoApplication.java Spring Boot启动类

package command;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplicationpublic class DemoApplication {    public static void main(String[] args) {        SpringApplication.run(DemoApplication.class, args);    }}

3.MyCommand.java 命令类

package command;import org.springframework.shell.standard.ShellComponent;import org.springframework.shell.standard.ShellMethod;@ShellComponentpublic class MyCommandDemo {    @ShellMethod("Add two intergers together.")    public int add(int a,int b){        return a+b;    }}

如果IDE工具是IDEA，执行

mvn clean install -DskipTests：跳过测试，直接安装Installjava -jar target\**.jar(安装的jar包名称):执行jar包

 

问题：如果启动时出现未找到主程序，则需查看主POM文件是否添加Parent的Spring Boot依赖