1 、問題

PC瀏覽器上傳表單格式大文件到手機服務器端，然后read文件真實數據時候出現阻塞。

比如

    User-Agent: PostmanRuntime/7.26.1Accept: */*Cache-Control: no-cachePostman-Token: c7e5e240-4398-4ac6-ba7f-98e99b5b4a01Host: 10.15.42.180:9999Accept-Encoding: gzip, deflate, brConnection: keep-aliveContent-Type: multipart/form-data; boundary=--------------------------118331203760563697512606Content-Length: 221----------------------------118331203760563697512606   52 * 2 = 104       52 + 2 = 54Content-Disposition: form-data; name="chengyuimage"; filename="1.txt"     69  + 2  = 71Content-Type: text/plain                                                  24 + 2 = 26 2 * 2 = 4			0 + 2 = 20123456789																  10 + 2 = 12 ----------------------------118331203760563697512606--  54 * 2 &