2018-12-14Spring boot 文件上传报错

 org.apache.tomcat.util.http.fileupload.FileUploadBase$FileSizeLimitExceededException: The field files exceeds its maximum permitted size of 1048576 bytes.

解决方式：
1、启动文件加@Configuration
2、@Bean
3、引入相应的包

亲测有效。

package com.winning.plat;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.boot.web.servlet.MultipartConfigFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.servlet.MultipartConfigElement;

@SpringBootApplication
@Configuration
public class PlatWebApplication extends SpringBootServletInitializer {

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

    @Override
    protected SpringApplicationBuilder configure(
            SpringApplicationBuilder application) {
        System.out.println("----启动");
        return application.sources(PlatWebApplication.class);
    }

    /**
     * 文件上传配置
     * @return
     */
    @Bean
    public MultipartConfigElement multipartConfigElement() {
        MultipartConfigFactory factory = new MultipartConfigFactory();
        //单个文件最大
        factory.setMaxFileSize("10240KB"); //KB,MB
        /// 设置总上传数据总大小
        factory.setMaxRequestSize("102400KB");
        return factory.createMultipartConfig();
    }
}

来源https://blog.csdn.net/qq_28089993/article/details/76854112