Replies at the end: Andrew:
On 8/17/2016 7:15 AM, Andrew Davis wrote: > Its a redhat .. i don't think tomcat 7 or later will run on this. > > On Aug 17, 2016 9:14 AM, "André Warnier (tomcat)" <a...@ice-sa.com> > wrote: > >> On 17.08.2016 16:06, Andrew Davis wrote: >> >>> Thanks for the prompt.. >>> >>> I have been looking at the doc s and have my .jar file for >>> postgres in the lib folder. >>> >>> I do not understand where the <Context> <Resource >>> name="jdbc/postgres..." >>> >>> Is supposed to go. >>> >>> Im reading at >>> https://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource- >>> examples-howto.html >>> >> >> If your version is Tomcat 7, then maybe you should look at the >> Tomcat 7 documentation, not the v 6 one. >> >> In any case, even Tomcat 7 is somewhat old now. Can you upgrade to >> a later version ? That might increase your chances of getting help >> here. >> >> >>> This author has not had success here... >>> >>> This doesn't inspire confidence here, but that's what the >>> documentation shows... >>> >>> >> Sorry, but personally my expertise in these matters is nil, so I >> hope someone else here can pick this up now. >> >> Andy >>> >>> On Aug 17, 2016 4:43 AM, "André Warnier (tomcat)" <a...@ice-sa.com> >>> wrote: >>> >>> On 17.08.2016 11:32, Andrew Davis wrote: >>> >>> Thanks. >>>> >>>> I can now deploy my servlets and they work ok, but.. >>>> >>>> I had hoped to just deploy one copy of the postgres jar to my >>>> server and then be able to consume it inside multiple >>>> applications, instead of having multiple copies of the jar in >>>> multiple apps. >>>> >>>> I've been through the JNDI portion of the docs on Tomcat and >>>> found it still somewhat confusing. >>>> >>>> Andy... >>>> >>>> >>> I am far from an expert on this kind of thing, but have you >>> looked at this : >>> >>> http://tomcat.apache.org/tomcat-8.0-doc/config/globalresources.html >>> >>> >>> Maybe that is the missing link in your understanding ? >>> >>> >>> >>> >>> On Aug 17, 2016 4:06 AM, "André Warnier (tomcat)" <a...@ice-sa.com> >>> wrote: >>>> >>>> Andrew, >>>> >>>>> this list strips most kinds of attachments, so nobody saw >>>>> your screenshots or whatever was in them. You need to >>>>> copy/paste that text right into your message to the list >>>>> (amd make sure that you send your message as "plain text", >>>>> not HTML, otherwise it will be unreadable. >>>>> >>>>> On 17.08.2016 02:10, Andrew Davis wrote: >>>>> >>>>> Well, >>>>> >>>>>> This has not turned out how I wanted it to . >>>>>> >>>>>> I have 'a solution' but it isnt what I wanted to do. I >>>>>> went back and re added the .jar file to the 'WEB-INF' >>>>>> folder and then deployed a new WAR file. >>>>>> >>>>>> Now things work just 'fine' BUT I suspect that this is not >>>>>> what a real coder would do and suspect I am still in the >>>>>> realms of hackery.. >>>>>> >>>>>> [image: Inline image 1] >>>>>> >>>>>> Andy. >>>>>> >>>>>> >>>>>> >>>>>> On Tue, Aug 16, 2016 at 6:53 PM, Andrew Davis >>>>>> <drsockmon...@gmail.com> wrote: >>>>>> >>>>>> I found the following in my logs.. >>>>>> >>>>>> >>>>>>> from command line in Putty... >>>>>>> >>>>>>> cd /var/lib/tomcat7 tail -f logs/catalina.out >>>>>>> >>>>>>> [image: Inline image 1] >>>>>>> >>>>>>> I do have the jar file located in the following location >>>>>>> on the machine.. >>>>>>> >>>>>>> /usr/share/tomcat7/lib >>>>>>> >>>>>>> https://tomcat.apache.org/tomcat-7.0-doc/jndi-resources-howt >>>>>>> >>>>>>> o.html#JDBC_Data_Sources is confusing to me. It shouldnt but it is.. >>>>>>> at this point.. >>>>>>> >>>>>>> Andy.. >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Tue, Aug 16, 2016 at 3:01 PM, George Sexton < >>>>>>> geor...@mhsoftware.com> wrote: >>>>>>> >>>>>>> The best place to start would be to look at tomcat's logs >>>>>>> for exceptions >>>>>>> >>>>>>> or errors. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On 8/16/2016 12:44 PM, Andrew Davis wrote: >>>>>>>> >>>>>>>> Hello, >>>>>>>> >>>>>>>> Im working on getting java servlets to run on my >>>>>>>> instance of Ububtu >>>>>>>>> with tomcat7. >>>>>>>>> >>>>>>>>> I write my applications in Eclipse.. when i run my >>>>>>>>> apps localhost i see everything just fine. >>>>>>>>> >>>>>>>>> When i export my WAR files i check the includ source >>>>>>>>> files. >>>>>>>>> >>>>>>>>> I deploy the WAR file through tomcat manager. >>>>>>>>> >>>>>>>>> I can see the java classes which i use to insert >>>>>>>>> records into my postgresql database. However, there >>>>>>>>> is nothing happening. When i attempt to run them, >>>>>>>>> no joy. >>>>>>>>> >>>>>>>>> I have the postgresql .jar file installed on my >>>>>>>>> headless ubuntu server , but no luck. >>>>>>>>> >>>>>>>>> Aside from the .jar file is there anything else i >>>>>>>>> need to configure? >>>>>>>>> >>>>>>>>> Any advice is welcome >>>>>>>>> >>>>>>>>> Andy AD: Its a redhat .. i don't think tomcat 7 or later will run on this. From your first message, I thought that this was Ubuntu? Please note that different Linux distributions package Tomcat differently. AD: I have the postgresql.jar file installed on my headless ubuntu server, but no luck. According to what I just searched for, I believe you can install Tomcat 7 via apt-get (depending on your Ubuntu version). Tomcat 8 also appears to be available via apt-get - again depending on your Ubuntu version. If you're running a RedHat 6 variant, it appears that Tomcat 6 is what's available. If you're running a RedHat 7 variant, it appears that Tomcat 7 is what's available. Please note that I install Tomcat manually for all of my systems, the above is just a result of searches. YMMV. AD: I have been looking at the docs and have my .jar file for postgres in the lib folder. Are you sure that you're placing it in the correct directory? From memory, RedHat - derived distributions set things up so that you can run multiple Tomcats (see RUNNING.txt in the standard distribution). Sometimes this means placing the JDBC jars in not-quite-so-obvious places. That being said, if you place the JDBC jars in the base Tomcat library directory, all running Tomcats (if you're running more than one) should pick it up. In your log, you should have two lines near the top: INFO: CATALINA_BASE: (some directory path) INFO: CATALINA_HOME: (some directory path) If you could, please grab those lines and paste the text (not an image) into your reply. The libs directory is (should be) a subdirectory of at least CATALINA_HOME. If you're running multiple Tomcats, their could be a libs directory as a subdirectory of CATALINA_BASE. The next thing to be concerned with is permissions. Tomcat runs as a non-privileged user (usually tomcat). Make sure that the JDBC jar file can be read by the user running Tomcat. Typically, this is done by changing the group and user ownership to the ones used by the Tomcat process, and NOT by making the JDBC jar world-accessible. Please do an ls -l in the directory where all of the JARS are, and paste the results in as text in your reply. Once all of that is sorted, we can poke around some more. . . . just my two cents /mde/
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