springboot接收app端（ios、android等）上传文件流

asfx站长

2020.11.03 20:30:31 阅读 1036

以上传图片为例：

```
	// 支持app端一次上传多张图片
    @PostMapping("/upload/image/app")
    @ResponseBody
    public List<JSONObject> uploadAppImage(HttpServletRequest request, HttpServletResponse response) throws Exception{
        MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest) request;
        Map<String, MultipartFile> fileMap = multipartHttpServletRequest.getFileMap();
        List<JSONObject> result = new ArrayList<>();
        for(Map.Entry<String, MultipartFile> entry : fileMap.entrySet()){
            MultipartFile file = entry.getValue();
            JSONObject res = uploadImage(file, "app", request);
            log.debug("-> app upload file: {}", res);
            result.add(res);
        }
        return result;
    }
	
	/**
     * @Description 执行上传图片
     * @Param [file]
     * @return com.alibaba.fastjson.JSONObject
     **/
    private JSONObject uploadImage(MultipartFile file, String source, HttpServletRequest request){
        JSONObject res = new JSONObject();
        if(file == null){
            res.put("success", 0);
            res.put("state", "0");
            res.put("message", "upload fail! no file!");
            return res;
        }
        String busType = request.getParameter("busType");
        log.debug("上传文件的自定义业务类型，{}", busType);
        String rootPath = webConfig.getUploadPath();//根路径
        String relativePath = DateUtils.getNow(DateUtils.YM_D) + File.separator;//相对路径,yyyyMM/dd/
        String trueFileName = file.getOriginalFilename();
        String suffix = trueFileName.substring(trueFileName.lastIndexOf("."));
        String uuid = UUIDUtils.get32UUID();
        String fileName = uuid + suffix;
        File targetFile = new File(rootPath + relativePath, fileName);
        File parentFile = targetFile.getParentFile();
        //保存
        try {
            if(!parentFile.exists()){
                parentFile.mkdirs();
            }
            file.transferTo(targetFile);
            String fileRelativePath = relativePath + fileName;//上传文件的存储相对路径
            String imgServer = webConfig.getImgServer();
			// 组装上传后的图片可访问链接地址返回给前端
            String url = imgServer +  "image?path=" + URLEncoder.encode(fileRelativePath, Constant.charset_utf_8);
            // TODO 保存数据库文件表...

res.put("url", url);
            res.put("success", 1);//上传成功
            res.put("state", "1");//字符串类型的成功状态
            res.put("message", "upload success!");//提示信息
            log.debug("上传图片成功，访问url， {}", url);
        } catch (Exception e) {
            e.printStackTrace();
            res.put("state", "0");
            res.put("success", 0);//上传失败
            res.put("message", "upload fail! " + e.getMessage());
        }
        return res;
    }
```