RestTemplate进行表单请求，注意要使用MultiValueMap

在对接API的时候，有时候文档中会说，表单提交，这时候就需要用到 MultiValueMap来操作，下面给大家展示一个简单的demo。

MultiValueMap<Object, Object> params= new LinkedMultiValueMap<Object, Object>();

        params.add("name",dto.getUser_name());

        params.add("cardNo",dto.getCard_no());

        params.add("idCard",dto.getId_card());

        params.add("phone",dto.getCard_phone());

        params.add("bankno",dto.getCard_no());

        params.add("orderId",String.valueOf(orderId));

        logger.info("获取验证码校验参数:"+JSON.toJSON(params));

        HttpHeaders headers = new HttpHeaders();

        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);

        HttpEntity<MultiValueMap<Object, Object>> requestEntity = new HttpEntity<MultiValueMap<Object, Object>>(params, headers);

        String url = getVerificationCodeUrl;

        logger.info("获取验证码请求地址为:{}",url);

        try {

            ResponseEntity<CommonResponse> rsp = restTemplate.exchange(url, HttpMethod.POST, requestEntity, CommonResponse.class);

            logger.info("手机号:" + phone + ",获取验证码返回结果:" + JSON.toJSON(rsp));

            if (rsp.getStatusCodeValue() == 200){

                if ("000".equals(rsp.getBody().getCode())){

                    logger.info("手机号:"+phone+",验证码发送成功");

                }else {

                    logger.info("手机号:"+phone+",验证码发送失败,"+"失败原因:"+rsp.getBody().getMsg());

                    return ResponseData.error(rsp.getBody().getMsg());

                }

            }

        }catch (Exception e){

            logger.error("请求获取验证码失败",e);

            return ResponseData.error();

        }