Servlet3.0——整合SpringMVC的Demo

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/rubulai/article/details/80979531

1、Spring容器：并不需要@Configuration注解

@ComponentScan(value = "com.bdm", excludeFilters = {
		@Filter(type = FilterType.ANNOTATION, classes = { Controller.class }) })
public class RootConfig {

}

2、SpringMVC容器：并不需要@Configuration注解

@ComponentScan(value = "com.bdm", useDefaultFilters = false, includeFilters = {
		@Filter(type = FilterType.ANNOTATION, classes = { Controller.class }) })
public class AppConfig {

}

3、controller

@Controller
public class HelloController {

	@Autowired
	HelloService helloService;
	
	@ResponseBody
	@RequestMapping("/hello")
	public String sayHello(){
		String sayHello = helloService.sayHello("tomcat");
		return sayHello;
	}
}

4、service

@Service
public class HelloService {

	public String sayHello(String name){
		return "Hello " + name;
	}
}

5、AbstractAnnotationConfigDispatcherServletInitializer的实现类

public class MyWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

	@Override
	protected Class<?>[] getRootConfigClasses() {
		return new Class[] { RootConfig.class };
	}

	@Override
	protected Class<?>[] getServletConfigClasses() {
		return new Class[] { AppConfig.class };
	}

	@Override
	protected String[] getServletMappings() {
		return new String[] { "/" };
	}

}

拦截的路径，此处配置的"/"：表示拦截除*.jsp之外的所有请求，*.jsp的解析是由tomcat的jsp引擎负责的；若配置成"/*"则会连*.jsp也会拦截，导致jsp无法解析

6、访问：