spring boot 实现多个 interceptor 并指定顺序

首先我们创建Interceptor，实现HandlerInterceptor覆写方法：
一、下面我创建了三个拦截器：
MyInterceptor，UserInterceptor，StudentInterceptor

@Component
public class MyInterceptor implements HandlerInterceptor {

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
		System.out.println("MyInterceptor preHandle");
		return true;
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
		System.out.println("MyInterceptor postHandle");
	}

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
		System.out.println("MyInterceptor afterCompletion");
	}
}

@Component
public class StudentInterceptor implements HandlerInterceptor {


	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
		System.out.println("StudentInterceptor preHandle");
		return true;
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
		System.out.println("StudentInterceptor postHandle");

	}

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
		System.out.println("StudentInterceptor afterCompletion");

	}
}

@Component
public class UserInterceptor implements HandlerInterceptor {

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

		System.out.println("UserInterceptor preHandle");
		return true;
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
		System.out.println("UserInterceptor postHandle");
	}

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
		System.out.println("UserInterceptor afterCompletion");
	}
}

@Configuration
public class MyAdapter implements WebMvcConfigurer {

	@Resource
	private MyInterceptor myInterceptor;

	@Resource
	private UserInterceptor userInterceptor;

	@Resource
	private StudentInterceptor studentInterceptor;

	@Override
	public void addInterceptors(InterceptorRegistry registry) {
		//1.加入的顺序就是拦截器执行的顺序，
		//2.按顺序执行所有拦截器的preHandle
		//3.所有的preHandle 执行完再执行全部postHandle 最后是postHandle
		registry.addInterceptor(studentInterceptor).addPathPatterns("/**");
		registry.addInterceptor(myInterceptor).addPathPatterns("/**");
		registry.addInterceptor(userInterceptor).addPathPatterns("/**");

	}
}

@RestController
public class TestController {

	@RequestMapping("/test")
	public String test() {
		return "test";
	}
	
}

registry.addInterceptor(customInterceptor2).order(1) registry.addInterceptor(customInterceptor1).order(2)

当引入其他jar时，可能也会有用到拦截器，根据业务这样写指定顺序应该更合理吧