跳到主要内容

获取设备文件上传策略

  • 通过该接口拿到上传文件的签名策略，上传完成后系统会根据不同的上传类型解析

请求​

iot/device/file_upload_policy

参数必填类型说明
uploadType是Enum上传类型

uploadType 枚举值​

枚举值限制的文件后缀限制的文件MimeType限制的文件大小说明
SCENE_OPERATION_TXT_01zip
txt		application/zip
text/plain		2M场景运营数据文件，上传后系统解析批量新增，单个新增接口场景数据上传

响应​

参数必填类型说明
accessid是String用户请求的accessid
policy是String用户表单上传的策略（Policy），是经过Base64编码过的字符串
dir是String限制路径前缀
host是String用户要往哪个域名发送上传请求
signature是String对Policy签名后的字符串
expire是String上传策略Policy失效时间
formFields是Object其他的表单信息,原样上传

请求示例​

{
  "uploadType": "SCENE_OPERATION_TXT_01"
}

返回值示例​

{
  "accessid": "accessid_0c54f692c5be",
  "policy": "policy_203f173f5a76",
  "dir": "dir_ca7a93a643ab",
  "host": "host_55d2fc7e5823",
  "signature": "signature_c6b53800ba73",
  "expire": "1728704512",
  "formFields": {
    "x:fileno": "851202410121133327518292923",
    "callback": "eyJjYWxsYmFja1VybCI6Imh0dHBzOi8vb3BlbmFwaS5YWxsYmFja1NOSSI6ZmFsc2V9"
  }
}

上传文件示例​


public static void policyUploadFile(UploadPolicyResult uploadPolicyResult, String localFile) throws Exception {
    File file = new File(localFile);
    Map<String, String> requestFiled = new LinkedHashMap<>();
    //文件名建议增加随机字符，不要重复，重复会覆盖原有文件
    requestFiled.put("key", uploadPolicyResult.getDir() + file.getName());
    requestFiled.put("OSSAccessKeyId", uploadPolicyResult.getAccessid());
    requestFiled.put("policy", uploadPolicyResult.getPolicy());
    requestFiled.put("Signature", uploadPolicyResult.getSignature());
    requestFiled.putAll(uploadPolicyResult.getFormFields());

    HttpPost httpPost = new HttpPost(uploadPolicyResult.getHost());
    MultipartEntityBuilder builder = MultipartEntityBuilder.create();
    for (Map.Entry<String, ?> entry : requestFiled.entrySet()) {
        builder.addTextBody(entry.getKey(), entry.getValue().toString());
    }
    String contentType = new MimetypesFileTypeMap().getContentType(file);
    // file必须为最后一个表单域，除file以外的其他表单域无顺序要求。
    builder.addPart("file", new FileBody(file, contentType));
    HttpEntity reqEntity = builder.build();
    httpPost.setEntity(reqEntity);

    try (CloseableHttpResponse httpResponse = HttpClients.createDefault().execute(httpPost)) {
        result = EntityUtils.toString(httpResponse.getEntity());
    }
}