SpringBoot拦截器的使用小结

@Override  public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {    //方法调用前执行    return true;//返回为false,拦截器拦截的方法不会调用  }  @Override  public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {  //方法执行结束后执行  }  @Override  public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {  //该方法将在整个请求完成之后，也就是DispatcherServlet渲染了视图执行, 这个方法的主要作用是用于清理资源的，  }  

 @Autowired  private LoginInterceptor loginInterceptor;//自己定义的拦截器类  @Override  public void addInterceptors(InterceptorRegistry registry) {  registry.addInterceptor(loginInterceptor).addPathPatterns("拦截URL，可以不填默认全部请求拦截");  }