import com.example.javautilsproject.service.AutoMethodDemoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
/**
* springboot静态方法获取 bean 的三种方式(一)
* @author: clx
* @version: 1.1.0
*/
@Component
public class StaticMethodGetBean_1 {
@Autowired
private AutoMethodDemoService autoMethodDemoService;
@Autowired
private static AutoMethodDemoService staticAutoMethodDemoService;
@PostConstruct
public void init() {
staticAutoMethodDemoService = autoMethodDemoService;
}
public static String getAuthorizer() {
return staticAutoMethodDemoService.test();
}
}
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;
/**
* @author: clx
* @version: 1.1.0
*/
@SpringBootApplication
public class Application {
public static ConfigurableApplicationContext ac;
public static void main(String[] args) {
ac = SpringApplication.run(Application.class, args);
}
}
/**
* @author: clx
* @version: 1.1.0
*/
@RestController
public class TestController {
/**
* 方式二
*/
@GetMapping("test2")
public void method_2() {
AutoMethodDemoService methodDemoService = Application.ac.getBean(AutoMethodDemoService.class);
String test2 = methodDemoService.test2();
System.out.println(test2);
}
}
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
/**
* springboot静态方法获取 bean 的三种方式(三)
* @author: clx
* @version: 1.1.0
*/
@Component
public class StaticMethodGetBean_3<T> implements ApplicationContextAware {
private static ApplicationContext applicationContext;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
StaticMethodGetBean_3.applicationContext = applicationContext;
}
public static <T> T getBean(Class<T> clazz) {
return applicationContext != null?applicationContext.getBean(clazz):null;
}
}
/**
* 方式三
*/
@Test
public void method_3() {
AutoMethodDemoService autoMethodDemoService = StaticMethodGetBean_3.getBean(AutoMethodDemoService.class);
String test3 = autoMethodDemoService.test3();
System.out.println(test3);
}
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