1、拦截器统一管理

@Configurationpublic class AppConfig extends WebMvcConfigurerAdapter {	@Resource	private FRInterceptor fRInterceptor;	@Override	public void addInterceptors(InterceptorRegistry registry) {		//自定义拦截器，添加拦截路径和排除拦截路径 		registry.addInterceptor(fRInterceptor).addPathPatterns("api/**").excludePathPatterns("api/login"); ;	}}

2、自定义拦截器

@Componentpublic class FRInterceptor implements HandlerInterceptor {	/*	 * 视图渲染之后的操作	 */	@Override	public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3)			throws Exception {	}	/*	 * 处理请求完成后视图渲染之前的处理操作	 */	@Override	public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3)			throws Exception {	}	/*	 * 进入controller层之前拦截请求	 */	@Override	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object obj) throws Exception {		System.out.println("getContextPath:" + request.getContextPath());		System.out.println("getServletPath:" + request.getServletPath());		System.out.println("getRequestURI:" + request.getRequestURI());		System.out.println("getRequestURL:" + request.getRequestURL());		System.out.println("getRealPath:" + request.getSession().getServletContext().getRealPath("image"));		return true;	}}