Spring Boot:The field file exceeds its maximum permitted size of 1048576 bytes

错误信息:The field file exceeds its maximum permitted size of 1048576 bytes
原因是因为SpringBoot内嵌tomcat默认所能上传的文件大小为1M,超出这个就会报错。

解决办法:

1.修改application.yml配置文件

spring:

  http:

    multipart:

      enabled: true

      max-file-size: 30MB

      max-request-size: 30MB

2.编写配置类

package com.blog.springboot.config;

import javax.servlet.MultipartConfigElement;

import org.springframework.boot.web.servlet.MultipartConfigFactory;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

@Configuration

public class MulterFile {

    /**

     * 文件上传配置

     * @return

     */

    @Bean

    public MultipartConfigElement multipartConfigElement() {

        MultipartConfigFactory factory = new MultipartConfigFactory();

        //文件最大

        factory.setMaxFileSize("30960KB"); //KB,MB

        /// 设置总上传数据总大小

        factory.setMaxRequestSize("309600KB");

        return factory.createMultipartConfig();

    }

}

参考资料:
Spring Boot:The field file exceeds its maximum permitted size of 1048576 bytes.
Spring Boot设置上传文件大小