<导航

spring MultipartFile 转 File

一、方法一:

  • File.createTempFile(String prefix, String suffix); 创建一个临时File对象,或者new File()
  • MultipartFile.transferTo(File dest); 实现 MultipartFile to File
@RequestMapping("/uploadDutyExcelNew")
    @ResponseBody
    public String uploadDutyExcel(HttpServletRequest request,
            @RequestParam("file") MultipartFile multfile) throws Exception {
        // 获取文件名
        String fileName = multfile.getOriginalFilename();
        // 获取文件后缀
        String prefix=fileName.substring(fileName.lastIndexOf("."));
        // 用uuid作为文件名,防止生成的临时文件重复
        final File excelFile = File.createTempFile(UUIDGenerator.getUUID(), prefix);
        // MultipartFile to File
        multfile.transferTo(excelFile);

        //你的业务逻辑

        //程序结束时,删除临时文件
        deleteFile(excelFile);
        return "";
     }

    /**  
     * 删除  
     *   
     * @param files  
     */  
    private void deleteFile(File... files) {  
        for (File file : files) {  
            if (file.exists()) {  
                file.delete();  
            }  
        }  
    }

二、方法二:

 引入commons-fileupload-1.2.2.jar  

import org.apache.commons.fileupload.disk.DiskFileItem;


CommonsMultipartFile cf = (CommonsMultipartFile)multfile;
DiskFileItem fi = (DiskFileItem)cf.getFileItem();
File file = fi.getStoreLocation();

 

 


 

posted @ 2018-09-14 15:35  字节悦动  阅读(1959)  评论(0编辑  收藏  举报