java - 在 groovy bean 中注入(inject) Spring bean

Question

我有带有 spring-boot-starter-remote-shell 的 Spring Boot 应用程序。 当我输入这个 hello.groovy 脚本时，它会打印“hello”，这没问题。

package commands

import org.crsh.cli.Usage
import org.crsh.cli.Command

class hello {

    @Usage("Say Hello")
    @Command
    def main(InvocationContext context) {
        return "hello";
    }

}

但是当我尝试注入(inject)一些 Spring bean 时，它总是空的。

package commands

import org.crsh.cli.Usage
import org.crsh.cli.Command
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.stereotype.Component
import org.springframework.batch.core.launch.JobLauncher

@Component
class hello {
    @Autowired
    JobLauncher jobLauncher;

    @Usage("Say Hello")
    @Command
    def main(InvocationContext context) {
        if(jobLauncher != null){
            return "OK";
        }else{
            return "NULL";
        }
        return "hello j";
    }

}

我有 @ComponentScan(basePackages={"com....", "commands"})

Answer 1

Spring BeanFactory 可以从调用上下文中获取。

package commands

import org.crsh.cli.Usage
import org.crsh.cli.Command
import org.crsh.command.InvocationContext;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.batch.core.launch.JobLauncher

class hello {

    @Usage("Say Hello")
    @Command
    def main(InvocationContext context) {
        BeanFactory beanFactory = (BeanFactory) context.getAttributes().get("spring.beanfactory");
        JobLauncher jobLauncher = beanFactory.getBean(JobLauncher.class);
        if(jobLauncher != null){
            return jobLauncher.toString();
        }else{
            return "NULL";
        }
        return "hello j";
    }

}