Question

我有两个我不明白的问题。

首先，我偶尔会得到一个＆＃39; http.client.BadStatusLine＆＃39; httpconnection.request后出错。 99.99％的时间代码工作，但偶尔会返回此错误。那么这是我的代码，还是导致问题的服务器？

第二个是我在代码中有两个异常处理程序。第一个我绕过整个子程序来捕获我可能做的任何编码错误（应用程序运行无头，所以我想捕获任何错误并以这样的方式处理它们，以便我可以记录错误并终止应用程序整洁的时尚）。第二个是围绕实际的请求，所以，再次，我可以捕获任何错误，报告它们，在这种情况下，让应用程序继续。奇怪的是，它是子程序异常处理程序，它捕获＆＃39; http.client.BadStatusLine＆＃39;而不是请求周围的异常处理程序。这是为什么？

我希望（以及我下面的代码片段）都有意义以及任何想法，建议或方法，以确保我捕获＆＃39; http.client.BadStatusLine＆＃39;作为一个可恢复的错误，而不是致命的错误，将非常感激地接受!!

请原谅我的编码。我是旧学校，并没有真正掌握新的编码方式，所以我的大部分时间就像是在写一个旧的Fortran或VB程序！

谢谢，吉姆

代码如下：

try:

    headers = {'X-Pvoutput-Apikey' : cArr[pvo_key][cVal],
               'X-Pvoutput-SystemId' : cArr[pvo_sysid][cVal],
               "Accept" : "text/plain",
               "Content-type": "application/x-www-form-urlencoded"}
    pvAddBaURL = "/service/r2/addbatchstatus.jsp"

    try:
        conn = http.client.HTTPConnection(pvo_host, timeout=ConTimeOut)
        #conn.set_debuglevel(2) # debug purposes only
        conn.request("POST", pvAddBaURL, "data=" + pvAddBaPrm, headers)
    except:
        errorReturn = sys.exc_info()
        writeLog(logWn, codeUpl, "Warning  > Batch upload connect unsuccessful")
        writeLog(logEr, codeUpl, "Bat > Batch upload unsuccessful with:")
        for errorVal in errorReturn:
            writeLog(logEr, codeUpl, "Bat > Connect error: " + str(errorVal))
        conn.close()
    else:
        response = conn.getresponse()
        if response.status != 200:
            writeLog(logWn, codeUpl, "Error   > Batch upload unsuccessful")
            writeLog(logEr, codeUpl, "Bat > Batch upload unsuccessful with:")
            writeLog(logEr, codeUpl, "Bat > Resp status: " + str(response.status))
            writeLog(logEr, codeUpl, "Bat > Resp reason: " + str(response.reason))
            writeLog(logEr, codeUpl, "Bat > Resp read: " + str(response.read()))
            conn.close()
        else:
            writeLog(logVb, codeUpl, "Bat > Upload successful")
            writeLog(logFu, codeUpl, "Bat > Resp status: " + str(response.status))
            writeLog(logFu, codeUpl, "Bat > Resp reason: " + str(response.reason))
            writeLog(logDb, codeUpl, "Bat > Resp read: " + str(response.read()))
            conn.close()

except:
    eespvo_Fatal(sys.exc_info(), codeUpl)  #fatal exception handler routine

#Routine to handle Crash!
#------------------------
#Ensures that even if there is a programming error the app can report it in the log.

def eespvo_Fatal(crashData, mod):

    writeLog(logWn, codeFaE, "Fatal    > eespvo (ProcId: "
         + str(eespvo_pid) +") terminated - restart attempted")
    writeLog(logFa, codeFaE, "Ftl > Fatal: eespvo crashed (ProcId: "
         + str(eespvo_pid) + ", Module: " + mod)

    for crashVal in crashData:
        writeLog(logFa, codeFaE, "Ftl > Fatal: " + str(crashVal))

    for frame in traceback.extract_tb(crashData[2]):
        fname, lineno, fn, text = frame
    writeLog(logFa, codeFaE, "Ftl > Fatal: <traceback line: " + str(lineno) + ">")
    writeLog(logFa, codeFaE, "Ftl > Fatal: <traceback module: " + str(fn) + ">")       
    writeLog(logFa, codeFaE, "Ftl > Fatal: <traceback text: " + str(text) + ">")

    writeLog(logFa, codeFaE, "Ftl > Fatal: eespvo (ProcId: " + str(eespvo_pid)
         +") killed")
    cArr[runOK][cVal] = False

#kill our own process
    os.kill(eespvo_pid,signal.SIGKILL)

我的日志输出如下所示：

从子例程异常处理程序：

20141216 084503 X: FaE - Ftl > Fatal: eespvo crashed (ProcId: 2380, Module: Upl
20141216 084503 X: FaE - Ftl > Fatal: <class 'http.client.BadStatusLine'>
20141216 084503 X: FaE - Ftl > Fatal: ''
20141216 084503 X: FaE - Ftl > Fatal: <traceback object at 0xe490d0>
20141216 084503 X: FaE - Ftl > Fatal: <traceback line: 316>
20141216 084503 X: FaE - Ftl > Fatal: <traceback module: _read_status>
20141216 084503 X: FaE - Ftl > Fatal: <traceback text: raise BadStatusLine(line)>
20141216 084503 X: FaE - Ftl > Fatal: eespvo (ProcId: 2380) killed

Answer 1

我仍然不知道问题1的答案。但我想我可能已经解决了问题2.我认为问题在于它是声明：

response = conn.getresponse()

失败了。在请求异常处理之外，它无法处理子例程异常。因此，解决方案是将其置于请求异常处理中，即：

    try:
        conn = http.client.HTTPConnection(pvo_host, timeout=ConTimeOut)
        #conn.set_debuglevel(2) # debug purposes only
        conn.request("POST", pvAddBaURL, "data=" + pvAddBaPrm, headers)
        response = conn.getresponse()
    except:

只有时间会证明！

Python 3应用程序与＆＃39; http.client.BadStatusLine n＃39;崩溃在httpconnection.request之后，即使存在异常处理程序

1 个答案: