SpringMVC拦截器的应用

public class InterceptorDemo extends HandlerInterceptorAdapter {
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        StringBuffer requestURL = httpServletRequest.getRequestURL();
        System.out.println("前置拦截器1 preHandle： 请求的uri为："+requestURL.toString());
        return true;
    }
    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {
        System.out.println("拦截器1 postHandle： ");
    }
    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {
        System.out.println("拦截器1 afterCompletion： ");
    }
}

@Configuration
public class InterceptorConfig implements WebMvcConfigurer{

    @Override
    public void addInterceptors(InterceptorRegistry registry) {

        //注册TestInterceptor拦截器
        InterceptorRegistration registration = registry.addInterceptor(new InterceptorDemo());
        registration.addPathPatterns("/**");                      //所有路径都被拦截
        registration.excludePathPatterns(                         //添加不拦截路径
                                         "你的登陆路径",            //登录
                                         "/**/*.html",            //html静态资源
                                         "/**/*.js",              //js静态资源
                                         "/**/*.css",             //css静态资源
                                         "/**/*.woff",
                                         "/**/*.ttf"
                                         );    
    }

 }