企业微信上传临时素材

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我是靠谱客的博主笑点低背包，最近开发中收集的这篇文章主要介绍企业微信上传临时素材，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

@Override
    public void createExportTask(String fileName, String stringFile, List list, AsyncExportDTO exportDTO, Boolean isTemplate, String templateUrl, Class tclass) {

        //加载Excel 生成Excel
        ExcelWriter excelWriter = null;
        try {
            if (isTemplate) {
                File file = ExcelUtil.getTemplateFile(templateUrl);
                excelWriter = EasyExcel.write(stringFile).withTemplate(file).build();
                WriteSheet writeSheet = EasyExcel.writerSheet().build();
                excelWriter.fill(list, writeSheet);
            } else {
                excelWriter = EasyExcel.write(stringFile).build();
                WriteSheet writeSheet = EasyExcel.writerSheet(0, fileName).head(tclass).build();
                excelWriter.write(list, writeSheet);
            }
            excelWriter.finish();
        } catch (Exception e) {
            e.printStackTrace();
        }
		
		//获取企业微信 accesstoken
        Result<String> accessToken = qwApiFeign.getAccessToken(CommonConstant.AGENT_SAAS, TenantContextHolder.getTenantId());
        log.info("accessToken:{}", accessToken.getData());
        //Excel 取出file 对象
        assert excelWriter != null;
        File file = excelWriter.writeContext().writeWorkbookHolder().getFile();

        RestTemplate restTemplate = new RestTemplate();
        try {
            String wxUrl = "https://qyapi.weixin.qq.com/cgi-bin/media/upload?access_token=ACCESS_TOKEN&type=TYPE";
            String url = wxUrl.replace("ACCESS_TOKEN", accessToken.getData()).replace("TYPE", "file");
            HttpHeaders headers = new HttpHeaders();
            MediaType type = MediaType.parseMediaType("multipart/form-data");
            headers.setContentType(type);
            headers.setContentLength(file.length());
            headers.setContentDispositionFormData("media", file.getName());
            MultiValueMap<String, Object> param = new LinkedMultiValueMap<>();
            FileSystemResource resource = new FileSystemResource(file.getPath());
            param.add("file", resource);
            HttpEntity<MultiValueMap<String, Object>> formEntity = new HttpEntity<>(param, headers);
            ResponseEntity<String> data = restTemplate.postForEntity(url, formEntity, String.class);

            JSONObject jsonObject = JSONObject.parseObject(data.getBody());
            String mediaId = jsonObject.getString("media_id");
            log.info("企业微信返回media_id：{}", mediaId);
            // GC
            if (file.exists()) {
                FileInputStream inputStream = new FileInputStream(file);
                inputStream.close();
                file.delete();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }