Spring Boot基于FileUpload包方式上传多个文件

添加万恶的依赖

<!-- 附件上传-->  
        <dependency>  
            <groupId>commons-fileupload</groupId>  
            <artifactId>commons-fileupload</artifactId>  
            <version>1.3.3</version>  
        </dependency>

修改配置文件，屏蔽servlet自带的附件上传

#配置上传文件信息  
  http:  
    multipart:  
      # 最大支持文件大小 即单个文件大小  
      max-file-size: 2m  
      # 最大支持请求大小 即一次性上传的总文件大小  
      max-request-size: 10m  
      #取消Servlet自带的上传  
      enabled: false  

增加控制器

package Net.XiangCaoWuYu.Controllers;  

import org.slf4j.Logger;  
import org.slf4j.LoggerFactory;  
import org.springframework.util.ResourceUtils;  
import org.springframework.web.bind.annotation.*;  
import org.springframework.web.multipart.MultipartFile;  

import javax.servlet.http.HttpServletRequest;  
import java.io.File;  
import java.io.IOException;  
import java.text.SimpleDateFormat;  
import java.util.Date;  

/** 
 * ClassName: CommonsFileUpload <br/> 
 * Description: <br/> 
 * date: 2019/7/28 9:28<br/> 
 * 
 * @author lisen01<br /> 
 * @since JDK 1.8 
 */  
@RestController  
@ResponseBody  
@RequestMapping(value = "/commonsfileupload")  
public class CommonsFileUpload {  
  
    private static final Logger logger = LoggerFactory.getLogger(CommonsFileUpload.class);  
  
    @PostMapping("/upload")  
    public String Upload(@RequestParam MultipartFile[] files, @RequestParam String name, HttpServletRequest request) throws IOException {  
        if (files.length <= 0) {  
            return "请先选择要上传的附件";  
        }  
        for (MultipartFile file : files) {  
            if (file.isEmpty()) {  
                return "文件信息不能为空";  
            }  
            String fileType = file.getContentType();  
            String fileName = file.getName();  
            String fileOriginalName = file.getOriginalFilename();  
            //String fileSavePath = request.getServletContext().getRealPath("/static/sources");  
            //使用jar包，放到同级目录  
            File rootPath = new File(ResourceUtils.getURL("classpath:").getPath());  
            String fileSavePath = rootPath.getAbsolutePath()+"/static/upload/";  
            Date date = new Date();  
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");  
            fileSavePath = fileSavePath + simpleDateFormat.format(date);  
            fileSavePath = fileSavePath + "/" + fileOriginalName;  
            fileSavePath.replace("/", File.separator);  
            File saveFile = new File(fileSavePath);  
            if (!saveFile.getParentFile().exists()) {  
                saveFile.getParentFile().mkdirs();  
            }  
            file.transferTo(saveFile);  
        }  
        return "上传成功";  
    }  
}