SpringBoot中main方法注入service

本是古典何须时尚 2023-06-12 13:26 38阅读 0赞

[参考该文章][Link 1]

在springboot中使用main方法常规无法注入service，因为以后也可能会有这种情况，所以采取工具类的方式进行，该工具类为固定写法，直接复制就行

@Component
    public class SpringContextUtil implements ApplicationContextAware {
        private static ApplicationContext applicationContext = null;
    
        @Override
        public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
            if (SpringContextUtil.applicationContext == null) {
                SpringContextUtil.applicationContext = applicationContext;
            }
        }
    
        public static ApplicationContext getApplicationContext() {
            return applicationContext;
        }
    
        public static Object getBean(String name) {
            return getApplicationContext().getBean(name);
        }
    
        public static <T> T getBean(Class<T> clazz) {
            return getApplicationContext().getBean(clazz);
        }
    
        public static <T> T getBean(String name, Class<T> clazz) {
            return getApplicationContext().getBean(name, clazz);
        }
    
    }

然后在需要注入的地方，创建静态service

private static Service service;

然后在需要使用的main方法中：

public static void main(String[] args) {
            SpringApplication.run(**Application.class,args);
            ApplicationContext applicationContext = SpringContextUtil.getApplicationContext();
            service = applicationContext.getBean(**Service.class);
        }

[Link 1]: https://blog.csdn.net/ElevenMu233/article/details/96346624