问OCR-身份证识别提示{"code":3,"message":"invalid request"}？

OCR-身份证识别，提示错误

请求报文如下：

POST /ocr/idcard HTTP/1.1

Content-Type: multipart/form-data

Authorization: wWTQOF8HGlNJZKeQSeoUgI4u30hhPTEyNTU1NTI3NzAmYj10ZXN0Jms9QUtJRHkwUWpReW5ZWk56U2txU2lqZE51TGV3NTV1OEhSMVRrJnQ9MTUyNzU5NjYxMSZlPTE1Mjc1OTY5MTEmcj02MzU5Njc2MTI=

host: recognition.image.myqcloud.com

Content-Type: multipart/form-data

Transfer-Encoding: chunked

Connection: Keep-Alive

User-Agent: Apache-HttpClient/4.5.2 (Java/1.8.0_161)

Accept-Encoding: gzip,deflate

61

--_btPBQUZ5F5WECUF2Bj27P0AMh4RyAdi-Dg46LZu

Content-Disposition: form-data; name="bucket"

test

68

--_btPBQUZ5F5WECUF2Bj27P0AMh4RyAdi-Dg46LZu

Content-Disposition: form-data; name="appid"

1255552770

63

--_btPBQUZ5F5WECUF2Bj27P0AMh4RyAdi-Dg46LZu

Content-Disposition: form-data; name="card_type"

1

109b

--_btPBQUZ5F5WECUF2Bj27P0AMh4RyAdi-Dg46LZu

Content-Disposition: form-data; name="image[0]"; filename="1.jpg"

Content-Type: image/jpeg

返回信息如下

HTTP/1.1 400 Bad Request

Server: nginx

Date: Tue, 29 May 2018 12:23:49 GMT

Content-Type: application/json; charset=utf-8

Content-Length: 38

Connection: keep-alive

{"code":3,"message":"invalid request"}