Question

我有一个春季启动应用程序。当我拨打context.getBean(MyController.class)时，它运行正常。当我拨打context.getBean("MyController")或context.getBean("com.MyController")时，会抛出NoSuchBeanDefinitionException。如何获取名称的bean？

应用

package com;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;

@SpringBootApplication
public class Application {

    public static void main(String[] args) throws Exception {
        ConfigurableApplicationContext context = SpringApplication.run(Application.class, args);
        // MyController myController = (MyController) context.getBean("com.MyController"); NoSuchBeanDefinitionException
        // MyController myController= (MyController) context.getBean("MyController"); NoSuchBeanDefinitionException
        MyController myController = (MyController) context.getBean(MyController.class); // works fine
        System.out.println(myService);
    }

}

控制器：

package com;

import org.springframework.stereotype.Controller;

@Controller
public class MyController {
}

Answer 1

您还可以在MyController类中定义控制器的名称，如下所示，

@Controller(value="MyController")
public class MyController {
}

context.getBean抛出NoSuchBeanDefinitionException

1 个答案: