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  • Spring Shell简单应用

    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

    <?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
      <modelVersion>4.0.0</modelVersion>
    
      <!--如果原先是Maven项目,不是Spring Boot项目,则这个Parent依赖需要加上-->
      <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
      </parent>
    
      <groupId>my</groupId>
      <artifactId>SpringShellDemo</artifactId>
      <version>1.0-SNAPSHOT</version>
    
      <name>SpringShellDemo</name>
      <!-- FIXME change it to the project's website -->
      <url>http://www.example.com</url>
    
    
      <properties>
        <java.version>1.8</java.version>
      </properties>
    
      <!--下面是依赖项-->
      <dependencies>
        <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-web</artifactId>
          <version>2.1.1.RELEASE</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-test</artifactId>
          <version>2.1.1.RELEASE</version>
          <scope>test</scope>
        </dependency>
    
        <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter</artifactId>
          <version>2.1.1.RELEASE</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework.shell</groupId>
          <artifactId>spring-shell-starter</artifactId>
          <version>2.0.0.RELEASE</version>
        </dependency>
      </dependencies>
    
      <!--添加Spring BootMaven插件-->
      <build>
        <plugins>
          <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <version>2.0.0.RELEASE</version>
          </plugin>
        </plugins>
      </build>
    
    </project>

    2.DemoApplication.java Spring Boot启动类

    package command;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    @SpringBootApplication
    public 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;
    
    @ShellComponent
    public 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Install
    
    java -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

    复制请注明出处,在世界中挣扎的灰太狼
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  • 原文地址:https://www.cnblogs.com/XingXiaoMeng/p/10204266.html
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