拦截器

1.配置类

2.除了/second,拦截所有请求，

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@Configuration
public class MyWebMvcConfig extends WebMvcConfigurationSupport {
    @Override
    protected void addInterceptors(InterceptorRegistry registry) {
        // 拦截/first请求URI
        // registry.addInterceptor(new SomeInterceptor()).addPathPatterns("/first/**");
        // 拦截所有请求，除了/second请求URI
        registry.addInterceptor(new SomeInterceptor())
                .addPathPatterns("/**")
                .excludePathPatterns("/second/**");
    }
}

public class SomeInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
        System.out.println("执行拦截器方法");
        return true;
    }
}