springboot 上传文件过大的500异常

1修改appliaction.properties

# 单个文件最大20m

spring.servlet.multipart.max-file-size=20MB

#一次请求最大100M

spring.servlet.multipart.max-request-size=100MB

如果配置文件为appliaction.yml的这样配置文件：

spring:  servlet:    multipart:      maxFileSize: 20MB      maxRequestSize: 100MB

500代码异常，在启动类的里追加

/** * 文件上传配置 * * @return */@Beanpublic MultipartConfigElement multipartConfigElement() {    MultipartConfigFactory factory = new MultipartConfigFactory();    //单个文件最大    factory.setMaxFileSize("20480KB"); //KB,MB    /// 设置总上传数据总大小    factory.setMaxRequestSize("102400KB");    return factory.createMultipartConfig();

}

这是我的启动类：

package com.tythin.tyboot.rest;

import org.apache.coyote.http11.AbstractHttp11Protocol;import org.mybatis.spring.annotation.MapperScan;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.web.embedded.tomcat.TomcatConnectorCustomizer;import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;import org.springframework.boot.web.servlet.MultipartConfigFactory;import org.springframework.boot.web.servlet.server.ServletWebServerFactory;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.scheduling.annotation.EnableScheduling;import org.springframework.web.cors.CorsConfiguration;import org.springframework.web.cors.UrlBasedCorsConfigurationSource;import org.springframework.web.filter.CorsFilter;

import com.tythin.tyboot.core.config.WebAutoConfiguration;

import javax.servlet.MultipartConfigElement;

@SpringBootApplication(exclude = { WebAutoConfiguration.class })@EnableScheduling@MapperScan(basePackages = "XXXX")public class TybootRestApplication {

    public static void main(String[] args) {        SpringApplication.run(TybootRestApplication.class, args);    }

    @Configuration    public class CorsConfig {        private CorsConfiguration buildConfig() {            CorsConfiguration corsConfiguration = new CorsConfiguration();            corsConfiguration.addAllowedOrigin("*"); // 1允许任何域名使用            corsConfiguration.addAllowedHeader("*"); // 2允许任何头            corsConfiguration.addAllowedMethod("*"); // 3允许任何方法（post、get等）            return corsConfiguration;        }

        @Bean        public CorsFilter corsFilter() {            UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();            source.registerCorsConfiguration("/**", buildConfig()); // 4            return new CorsFilter(source);        }

        /**         * 文件上传配置         *         * @return         */        @Bean        public MultipartConfigElement multipartConfigElement() {            MultipartConfigFactory factory = new MultipartConfigFactory();            //单个文件最大            factory.setMaxFileSize("20480KB"); //KB,MB            /// 设置总上传数据总大小            factory.setMaxRequestSize("102400KB");            return factory.createMultipartConfig();

        }    }}

原文地址：https://www.cnblogs.com/woshuaile/p/11600568.html