參考該文解決問題：http://blog.csdn.net/sanjay_f/article/details/47407063
報錯
threw exception [Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is org.apache.commons.fileupload.FileUploadException: the request was rejected because no multipart boundary was found] with root cause
org.apache.commons.fileupload.FileUploadException: the request was rejected because no multipart boundary was found
不手動添加content-type后就行了：此時訪問成功。
問題的原因
You shouldNEVERset that header yourself. We set the header properly with the boundary. If you set that header, we won't and your server won't know what boundary to expect (since it is added to the header). Remove your custom Content-Type header and you'll be fine.
src：
http://stackoverflow.com/questions/17415084/multipart-data-post-using-Python-requests-no-multipart-boundary-was-found
簡稱。。制作多情。。。頭部會自動加好，不要畫足添蛇。。。。。。。。。