SpringBoot 配置404页面

提前在static文件夹下 放置一个404.html

import org.springframework.boot.web.server.ConfigurableWebServerFactory;
import org.springframework.boot.web.server.ErrorPage;
import org.springframework.boot.web.server.WebServerFactoryCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpStatus;

/**
 * @author : zanglikun
 * @date : 2021/11/10 11:45
 * @Version: 1.0
 * @Desc : 404配置
 */
@Configuration
public class _404Config {
    @Bean
    public WebServerFactoryCustomizer<ConfigurableWebServerFactory> webServerFactoryCustomizer(){
        return  (factory -> {
            ErrorPage errorPage404 = new ErrorPage(HttpStatus.NOT_FOUND, "/404.html");
            factory.addErrorPages(errorPage404);
        });
    }
}

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