提交multipart/form-data类型数据

怼烎@ 2022-08-05 02:37 141阅读 0赞

# 提交multipart/form-data类型数据 #

@(spring mvc)\[文件上传|附加信息\]

## 举例：`工行签名证书上传保存` ##

**说明：**框架使用的是spring mvc 4，接口测试工具使用postman，本文要实现的功能有：

>  *  **文件上传** ：文件上传信息填写在form-data区域，字段名即文件名，文件内容通过`postman`控件选择，存储在`mysql`数据库中类型为BLOB，对应的java类属性为byte\[\]
>  *  **文件存储** ：直接将文件存储到数据库，而非存储文件的URL；
>  *  **其他信息** ：同时上传文件的其他附加信息，也一并保存到数据库。

## postman测试请求 ##

> postman接口地址:  
> [https://www.getpostman.com/collections/3ff9e71924f3facec051][https_www.getpostman.com_collections_3ff9e71924f3facec051]
> 
> ![postman接口][postman]

--------------------

## controller源码 ##

@RequestMapping(value = "business/{businessId}/{company}/mode", method = RequestMethod.POST,
                produces = MediaType.APPLICATION_JSON_VALUE)
        public ResponseEntity create(@PathVariable("businessId") Long businessId,
                                     @PathVariable("company") String company,
                                     @RequestParam("name") String name,
                                     @RequestParam("password") String privatePassword,
                                     @RequestParam("account") String account,
                                     HttpServletRequest request) {
            try {
                boolean passed = CompanyUtil.checkCompany(company);
                if (passed) {
                    PayModeDto modeDto = new PayModeDto();
                    modeDto.setName(name);
                    modeDto.setBusinessId(businessId);
                    modeDto.setPrivatePassword(privatePassword);
                    modeDto.setAccount(account);
    
                    DiskFileItemFactory factory = new DiskFileItemFactory();
                    ServletFileUpload upload = new ServletFileUpload(factory);
                    List items = upload.parseRequest(request);
                    for (Object object : items) {
                        FileItem fileItem = (FileItem) object;
                        System.out.println(fileItem.toString());
                        if (fileItem.getFieldName().equals("publicKey")) {
                            modeDto.setPublicKey(fileItem.get());
                        } else if (fileItem.getFieldName().equals("privateKey")) {
                            modeDto.setPrivateKey(fileItem.get());
                        }
                    }
                    logger.info("客户端将创建的支付配置：{}", JSONObject.toJSONString(modeDto));
                    if (company.equals(IConstant.ICBC)) {
                        logger.info("将要添加的是工商银行支付配置");
                        payModeService.createICBCPayMode(modeDto);
                        logger.info("成功添加工行支付配置");
                    } else if (company.equals(IConstant.MOBAO)) {
                        logger.info("将要添加的是魔宝支付配置");
                        payModeService.createMobaoPayMode(modeDto);
                        logger.info("成功添加魔宝支付配置");
                    }
                    return new ResponseEntity(new Bingo(), HttpStatus.CREATED);
                } else {
                    logger.info("校验支付公司简称路径变量{}不通过", company);
                    JSONObject error = new JSONObject();
                    error.put("ErrorCode", 400);
                    error.put("ErrorMsg", "公司简称填写错误");
                    return new ResponseEntity(error, HttpStatus.BAD_REQUEST);
                }
            } catch (FileUploadException e) {
                e.printStackTrace();
                logger.info(e.getMessage());
                JSONObject error = new JSONObject();
                error.put("ErrorCode", 400);
                error.put("ErrorMsg", e.getMessage());
                return new ResponseEntity(error, HttpStatus.BAD_REQUEST);
            } catch (CoreException e) {
                e.printStackTrace();
                logger.info(JSONObject.toJSONString(e));
                return new ResponseEntity(e, HttpStatus.BAD_REQUEST);
            } catch (Exception e) {
                e.printStackTrace();
                logger.info(e.getMessage());
                JSONObject error = new JSONObject();
                error.put("ErrorCode", 400);
                error.put("ErrorMsg", e.getMessage());
                return new ResponseEntity(error, HttpStatus.BAD_REQUEST);
            }
        }

--------------------

## 我的联系方式 ##

>  *  Q Q：1250052380
>  *  邮箱：1250052380@qq.com

[https_www.getpostman.com_collections_3ff9e71924f3facec051]: https://www.getpostman.com/collections/3ff9e71924f3facec051
[postman]: /images/20220805/21cded793bc149bf9a0e1e84487dcc21.png