在Groovy bean中注入Spring bean [英] Inject Spring bean in groovy bean

问题描述

我有spring-boot-starter-remote-shell的Spring Boot应用程序。
当我把这个hello.groovy脚本打印出'hello'并且没问题。

 包命令
 
 import org.crsh.cli.Usage 
 import org.crsh.cli.Command 
 
 class hello {
 
 @Usage（Say Hello ）
 @Command 
 def main（InvocationContext context）{
 returnhello; 
} 
 
} 
  

但是当我尝试注入一些

 包命令
 
导入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; b 
 $ b @Usage（Say Hello）
 @Command 
 def main（InvocationContext context）{
 if（jobLauncher！= null）{
 return 好; 
} else {
 returnNULL; 
} 
返回hello j; 
} 
 
} 
  

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

解决方案

<

 包命令
 
 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 
 $ b $ 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 {
 returnNULL; 
} 
返回hello j; 
} 
 
} 
  

I have Spring Boot application with spring-boot-starter-remote-shell. When I put this hello.groovy script it prints 'hello' and that's OK.

package commands

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

class hello {

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

}

But when I try to inject some Spring bean it's always null.

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";
    }

}

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

解决方案

Spring BeanFactory can be taken from the Invocation context.

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";
    }

}

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