Spring Shell在jar中运行时会失败

Question

我正在使用Spring构建一个shell应用程序。此时，intelliJ上的一切都运行得很好，这意味着我可以在没有任何问题的情况下运行命令。

我使用的是JPA，hibernate是实现提供者，我能够连接到我的数据库并能够进行查询。

当我创建应用程序的工件并在没有intellij的情况下运行它时，问题就开始了。

下面是我的演示命令：

@ShellComponent
public class MyCommands {

    private final EntityManager entityManager;
    
    @Autowired
    public MyCommands(EntityManager manager) {
        this.entityManager = manager;
    }

    @ShellMethod(value = "Add two integers together", key = "find")
    public String find(int id) {
        Customer customer = entityManager.find(Customer.class, id);
        String res = "";
        if(customer != null) {
            // logic
        } else {
            // logic
        }
        return res;
    }
}

项目结构：

​

​

我的艺术品设置：

​

​

配置：

@Configuration
public class Config {

    @Bean
    public EntityManagerFactory entityManagerFactory() {
        return Persistence.createEntityManagerFactory("pu");
    }

    @Bean
    public EntityManager entityManager(EntityManagerFactory emf) {
        return emf.createEntityManager();
    }
}

应用程序：

@SpringBootApplication
public class DemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);

    }
}

日志：

16:47:46.312 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'standardParameterResolver' defined in class path resource [org/springframework/shell/standard/StandardAPIAutoConfiguration.class]: Unsatisfied dependency expressed through method 'standardParameterResolver' parameter 0; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.core.convert.ConversionService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Qualifier(value="spring-shell")}
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:769)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:326)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1313)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1302)
    at com.example.demo.DemoApplication.main(DemoApplication.java:14)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.core.convert.ConversionService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Qualifier(value="spring-shell")}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1790)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1346)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300)
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887)
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791)
    ... 19 common frames omitted

谢谢!

Answer 1

您需要使用一些东西将依赖项打包到jar中，或者在执行时手动将依赖项添加到类路径中。这通常涉及像maven的阴影插件或gradle的阴影插件。

请参阅How can I create an executable JAR with dependencies using Maven?

这也可以在intellij中完成，但是让ide成为您的构建工具通常是个坏主意。

https://blog.karthicr.com/posts/2016/07/10/creating-an-executable-jar-in-intellij-idea/