sb2.0统一错误页面

@Configuration
public class ErrorConfigurar {
    /**
     * SpringBoot2.0以上版本WebServerFactoryCustomizer代替之前版本的EmbeddedWebServerFactoryCustomizerAutoConfiguration
     *
     * @return
     */

    //@Bean必须加上
    @Bean
    public WebServerFactoryCustomizer<ConfigurableWebServerFactory> webServerFactoryCustomizer() {
        //第二种写法：java8 lambda写法
        return (factory -> {
            ErrorPage errorPage404 = new ErrorPage(HttpStatus.NOT_FOUND, "/error.do");
            ErrorPage errorPage500 = new ErrorPage(HttpStatus.INTERNAL_SERVER_ERROR, "/error.do");
            factory.addErrorPages(errorPage404, errorPage500);
        });
    }
}