springboot的拦截器
2021-02-01 10:17
标签：clear exce body mode 一个 方便 添加 bsp ons 首先要写一个自己的拦截器，实现HandlerInterceptor接口，并且实现接口中的三个方法，同时添加 @Component 注解，把自己的拦截器放入容器 中管理，方便以后的注入使用。 然后要写一个配置类，用来添加拦截器到 配置类中，让拦截器启用，因为使用的是springboot所以配置类要 使用@Configuration注解，标明本类是配置类 并且要继承WebMvcConfigurer这个接口，并且注入自己写的拦截器，并且从写public void addInterceptors(InterceptorRegistry registry)这个方法，注册自己写的拦截器， 结果 springboot的拦截器 标签：clear exce body mode 一个 方便 添加 bsp ons 原文地址：https://www.cnblogs.com/bozhengheng/p/12814169.html@Component
public class MyIntercepor implements HandlerInterceptor {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
System.out.println("前值方法");
return true;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
System.out.println("后置方法");
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
System.out.println("完成方法");
}
}
@Configuration
public class MyWebMvcConfig implements WebMvcConfigurer {
@Autowired
private MyIntercepor myIntercepor;
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(myIntercepor).addPathPatterns("/**");
}
}
2020-05-01 17:40:41.708 DEBUG 9812 --- [nio-8888-exec-1] o.s.b.f.s.DefaultListableBeanFactory : Returning cached instance of singleton bean ‘userController‘
2020-05-01 17:40:41.709 DEBUG 9812 --- [nio-8888-exec-1] o.s.web.servlet.DispatcherServlet : Last-Modified value for [/user/hello] is: -1
前值方法
2020-05-01 17:40:41.764 DEBUG 9812 --- [nio-8888-exec-1] m.m.a.RequestResponseBodyMethodProcessor : Written [this is hello controller] as "text/html" using [org.springframework.http.converter.StringHttpMessageConverter@31ceba99]
后置方法
2020-05-01 17:40:41.766 DEBUG 9812 --- [nio-8888-exec-1] o.s.web.servlet.DispatcherServlet : Null ModelAndView returned to DispatcherServlet with name ‘dispatcherServlet‘: assuming HandlerAdapter completed request handling
完成方法
2020-05-01 17:40:41.766 DEBUG 9812 --- [nio-8888-exec-1] o.s.web.servlet.DispatcherServlet : Successfully completed request
2020-05-01 17:40:41.767 DEBUG 9812 --- [nio-8888-exec-1] o.s.b.w.s.f.OrderedRequestContextFilter : Cleared thread-bound request context: org.apache.catalina.connector.RequestFacade@388e5df3
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