文章目录
给 Spring Boot 增加一个 拦截器
自定义一个拦截器
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@Slf4j public class HelloInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { log.info("preHandle:请求前调用"); //返回 false 则请求中断 return true; } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { log.info("postHandle:请求后调用"); } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { log.info("afterCompletion:请求调用完成后回调方法，即在视图渲染完成后回调"); } } |
注册这个拦截器
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@Configuration public class SpringbootConfig implements WebMvcConfigurer { @Bean public HelloInterceptor getHelloInterceptor(){ return new HelloInterceptor(); } @Override public void addInterceptors(InterceptorRegistry registry) { /** * 增加拦截器 */ registry.addInterceptor(getHelloInterceptor()).addPathPatterns("/"); } } |
Controller
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@Slf4j @RestController public class WebController { @GetMapping(path = "/") public String index(){ log.info("In Web Controller"); return "hello world"; } } |
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