(27)全注解式开发

所谓的全注解开发就是不再使用spring配置文件了。写一个配置类来代替配置文件。

packagecom.powernode.spring6.config;importorg.springframework.context.annotation.ComponentScan;importorg.springframework.context.annotation.ComponentScans;importorg.springframework.context.annotation.Configuration;@Configuration@ComponentScan({"com.powernode.spring6.dao","com.powernode.spring6.service"})publicclassSpring6Configuration{}

编写测试程序：不再new ClassPathXmlApplicationContext()对象了。

@TestpublicvoidtestNoXml(){ApplicationContextapplicationContext=newAnnotationConfigApplicationContext(Spring6Configuration.class);UserServiceuserService=applicationContext.getBean("userService",UserService.class);userService.save();}