使用RequestsLibrary发送post请求，发送两次，第二次返回501，服务端使用的libevent-2.1.8

s850079800 2018-04-12 02:58:57

我在使用robotframework，调用requestslibrary发送post请求时，使用相同的消息，第一次返回200，但是第二次返回501，http码流如下：
POST /devices HTTP/1.1
Host: 0.0.0.0
Connection: keep-alive
X-Forwarded-For: 10.40.167.79
X-Forwarded-Proto: http
X-Forwarded-Host: 10.42.29.182
X-Forwarded-Port: 2480
X-Real-IP: 10.40.167.79
Content-Length: 118
Accept-Encoding: gzip, deflate
Accept: */*
User-Agent: python-requests/2.13.0
Content-Type: application/json
X-Consumer-ID: b6ab42ac-37f7-4da9-922c-4a1dfb2dd8c8
X-Consumer-Username: uoxw745L
X-Consumer-Groups: d59208fa1d4875a6e744b882aff88a, 1a0f8f2ecb4c4cb97a05e5076da3b8, ba1670c4654f6aa59a19d9d14f6c92, 88344d0fc14f86b1b0f4ac38f52c78

{"deviceinfo": {"serialnum": "P5dCv5Xd", "modelcode": "sqmq2HYL", "productno": "329", "devicedesc": "devicedesctest"}}HTTP/1.1 200 return
Content-Type: application/json;charset=UTF-8
Date: Tue, 27 Mar 2018 08:09:48 GMT
Content-Length: 57

{"devicersp":{"result_status":"success","error_info":""}}DELETE /devices?serialnum=P5dCv5Xd&productno=329 HTTP/1.1
Host: 0.0.0.0
Connection: keep-alive
X-Forwarded-For: 10.40.167.79
X-Forwarded-Proto: http
X-Forwarded-Host: 10.42.29.182
X-Forwarded-Port: 2480
X-Real-IP: 10.40.167.79
Content-Length: 4
Accept-Encoding: gzip, deflate
Accept: */*
User-Agent: python-requests/2.13.0
Content-Type: application/json
X-Consumer-ID: b6ab42ac-37f7-4da9-922c-4a1dfb2dd8c8
X-Consumer-Username: uoxw745L
X-Consumer-Groups: d59208fa1d4875a6e744b882aff88a, 1a0f8f2ecb4c4cb97a05e5076da3b8, ba1670c4654f6aa59a19d9d14f6c92, 88344d0fc14f86b1b0f4ac38f52c78

"()"HTTP/1.1 200 return
Content-Type: application/json;charset=UTF-8
Date: Tue, 27 Mar 2018 08:09:49 GMT
Content-Length: 57

{"devicersp":{"result_status":"success","error_info":""}}POST /devices HTTP/1.1
Host: 0.0.0.0
Connection: keep-alive
X-Forwarded-For: 10.40.167.79
X-Forwarded-Proto: http
X-Forwarded-Host: 10.42.29.182
X-Forwarded-Port: 2480
X-Real-IP: 10.40.167.79
Content-Length: 118
Accept-Encoding: gzip, deflate
Accept: */*
User-Agent: python-requests/2.13.0
Content-Type: application/json
X-Consumer-ID: b6ab42ac-37f7-4da9-922c-4a1dfb2dd8c8
X-Consumer-Username: uoxw745L
X-Consumer-Groups: d59208fa1d4875a6e744b882aff88a, 1a0f8f2ecb4c4cb97a05e5076da3b8, ba1670c4654f6aa59a19d9d14f6c92, 88344d0fc14f86b1b0f4ac38f52c78

{"deviceinfo": {"serialnum": "P5dCv5Xd", "modelcode": "sqmq2HYL", "productno": "329", "devicedesc": "devicedesctest"}}HTTP/1.1 501 Not Implemented
Content-Type: text/html
Connection: close
Date: Tue, 27 Mar 2018 08:09:54 GMT
Content-Length: 102

<HTML><HEAD>
<TITLE>501 Not Implemented</TITLE>
</HEAD><BODY>
<H1>Not Implemented</H1>
</BODY></HTML>

有哪位大侠知道是为什么吗？求解答！

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