Filter:
//creat filter
public class TimeFilter implements Filter {
@Override
public void destroy() {
System.out.println("time filter destroy");
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
System.out.println("time filter start");
long start = new Date().getTime();
chain.doFilter(request, response);
System.out.println("time filter 耗時:"+ (new Date().getTime() - start));
System.out.println("time filter finish");
}
@Override
public void init(FilterConfig arg0) throws ServletException {
System.out.println("time filter init");
}
}
//regist filter add filter url
@Configuration
public class WebConfig {
@Bean
public FilterRegistrationBean timeFilter() {
FilterRegistrationBean registrationBean = new FilterRegistrationBean();
TimeFilter timeFilter = new TimeFilter();
registrationBean.setFilter(timeFilter);
List<String> urls = new ArrayList<>();
urls.add("/*");
registrationBean.setUrlPatterns(urls);
return registrationBean;
}
}
Interceptor:
//creat
@Component
public class TimeInterceptor implements HandlerInterceptor {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
System.out.println("preHandle");
System.out.println(((HandlerMethod)handler).getBean().getClass().getName());
System.out.println(((HandlerMethod)handler).getMethod().getName());
request.setAttribute("startTime", new Date().getTime());
return true;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
ModelAndView modelAndView) throws Exception {
System.out.println("postHandle");
Long start = (Long) request.getAttribute("startTime");
System.out.println("time interceptor 耗時:"+ (new Date().getTime() - start));
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
throws Exception {
System.out.println("afterCompletion");
Long start = (Long) request.getAttribute("startTime");
System.out.println("time interceptor 耗時:"+ (new Date().getTime() - start));
System.out.println("ex is "+ex);
}
}
//autowarid
@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {
@SuppressWarnings("unused")
@Autowired
private TimeInterceptor timeInterceptor;
@Override
public void addInterceptors(InterceptorRegistry registry) {
// registry.addInterceptor(timeInterceptor);
}
}
ControllerAdvice:
//define customer exceptioni
public class UserNotExistException extends RuntimeException {
private static final long serialVersionUID = -6112780192479692859L;
private String id;
public UserNotExistException(String id) {
super("user not exist");
this.id = id;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
}
// add controllerAdvice
@ControllerAdvice
public class ControllerExceptionHandler {
@ExceptionHandler(UserNotExistException.class)
@ResponseBody
@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
public Map<String, Object> handleUserNotExistException(UserNotExistException ex) {
Map<String, Object> result = new HashMap<>();
result.put("id", ex.getId());
result.put("message", ex.getMessage());
return result;
}
}
Aspect:
@Aspect
@Component
public class TimeAspect {
@Around("execution(* vip.fkandy.web.controller.UserController.*(..))")
public Object handleControllerMethod(ProceedingJoinPoint pjp) throws Throwable {
System.out.println("time aspect start");
Object[] args = pjp.getArgs();
for (Object arg : args) {
System.out.println("arg is "+arg);
}
long start = new Date().getTime();
Object object = pjp.proceed();
System.out.println("time aspect 耗時:"+ (new Date().getTime() - start));
System.out.println("time aspect end");
return object;
}
}