From: | Rob Sargent <robjsargent(at)gmail(dot)com> |
---|---|
To: | Dave Cramer <pg(at)fastcrypt(dot)com> |
Cc: | "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: loading jdbc Driver in servlet |
Date: | 2018-12-16 17:20:35 |
Message-ID: | 3B618955-9F54-41AC-967A-A7A77A7C8085@gmail.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
Tomcat version 9. Embedded in my main()
> On Dec 16, 2018, at 9:30 AM, Dave Cramer <pg(at)fastcrypt(dot)com> wrote:
>
> My guess is it has something to do with your servlet classpath loader. Which servlet engine are you using ?
> Dave Cramer
>
> davec(at)postgresintl(dot)com
> www.postgresintl.com
>
>
>> On Fri, 14 Dec 2018 at 16:04, Rob Sargent <robjsargent(at)gmail(dot)com> wrote:
>>
>>
>>>> On Dec 14, 2018, at 2:02 PM, Rob Sargent <robjsargent(at)gmail(dot)com> wrote:
>>>>
>>>>
>>>>
>>>> On Dec 14, 2018, at 1:30 PM, Dave Cramer <pg(at)fastcrypt(dot)com> wrote:
>>>>
>>>> Strange, I wouldn't think so, but then I haven't used a raw servlet for so long I have no idea.
>>>>
>>>>
>>>> Dave Cramer
>>>>
>>>> davec(at)postgresintl(dot)com
>>>> www.postgresintl.com
>>>>
>>>>
>>>>> On Fri, 14 Dec 2018 at 13:29, Rob Sargent <robjsargent(at)gmail(dot)com> wrote:
>>>>> Using java 1.8, postgresql-42.1.4.jar, embedded tomcat 9
>>>>>
>>>>> It appears to me that I need to make the call "Class.forName("org.postgresql.Driver)" when the entry is in a servlet. Is this expected, within a servlet, or is this just post hoc ergo propter hoc at it finest and I changed something else (wittingly or not). Same code outside of servlet does not need the forced loading of the class and the manual claims it's not need after java 1.6
>>>>>
>>> I too am suspicious. But the vagaries of javax are daunting.
>>> But if I comment it out, as just now, “No suitable driver found...”. I was days playing with configuration and such think that this very specific error message was telling me my CLASSPATH was wrong.
>>>
>>> I wonder if I have an old javax installation (which I put in place just recently).
>>>
>>>
>> I’m using javax.servlet-api-3.1.0.jar
>>>
>>>
>>
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