Hello Akram, If you can not put the jars inside each webapp perhaps you could define a shared.loader in your catalina.properties [1]. It works for us.
Hope it helps, Luis [1] https://tomcat.apache.org/tomcat-9.0-doc/class-loader-howto.html#Advanced_configuration El mar., 16 abr. 2019 a las 23:21, Christopher Schultz (< ch...@christopherschultz.net>) escribió: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > Akram, > > On 4/16/19 16:21, Akram Hussain wrote: > > Hi Christopher, > > > > I have almost 27-30 apps in my tomcat. > > > > Do I need to declare in every applications's META-INF\context.xml. > > Yes. If every application needs those libraries, then you'll need to > configure them. Just like you had to configure your custom class > loader for each application in the past. > > Why not simply put the JAR files into the applications as usual? Then > each web application is self-contained and you don't have to go > through all these back-flips. > > > And also I have a listener class which is in tomcat\lib folder, > > which also access these shared classes using CustomSharedLibrary. > > Then you can put all the libraries into Tomcat's lib/ directory and > you don't have to do any of this. > > > How can I access those shared libraries in listener which is in > > tomcat\lib folder? > > What does your Listener do? You might not even need it... > > - -chris > > > On Wed, Apr 17, 2019 at 1:02 AM Christopher Schultz < > > ch...@christopherschultz.net> wrote: > > > > Akram, > > > > On 4/16/19 12:41, Akram Hussain wrote: > >>>> I have gone through it, But it was not clear to me. > >>>> > >>>> If an example is provided, how to pass resources to > >>>> SharedClassLoader, it could be helpful. > > > > If you configure something like this in your META-INF/context.xml: > > > > <Resources> <PostResources webAppMount="/WEB-INF/classes" > > base="/path/to/your/shared/libraries" > > className="org.apache.catalina.webresources.DirResourceSet" /> > > </Resources> > > > > That should allow your application to load JAR files from your > > /path/to/your/shared/libraries directory. > > > > You should completely remove your custom class loader. Completely. > > > > -chris > > > >>>> On Tue, Apr 16, 2019 at 7:57 PM Christopher Schultz < > >>>> ch...@christopherschultz.net> wrote: > >>>> > >>>> Akram, > >>>> > >>>> On 4/16/19 06:29, Akram Hussain wrote: > >>>>>>> I have Custom SharedClassLoader in Tomcat 7 to load > >>>>>>> shared library jars, which is used by different > >>>>>>> applications in that tomcat. We migrated to Tomcat 9, > >>>>>>> now it is not working. How to achieve the same > >>>>>>> functionality in tomcat 9. > >>>> > >>>> Have a look at the <Resources> which should be able to do > >>>> what you need without any custom code: > >>>> > >>>> http://tomcat.apache.org/tomcat-9.0-doc/config/resources.html > >>>> > >>>>>>> > >>>> > In Tomcat 9 it expects resources to be passed. I don't find > >>>>>>> any sample Code on how to populate resources. > >>>>>>> > >>>>>>> I tried like below > >>>>>>> > >>>>>>> public CustomSharedClassLoader(ClassLoader parent) > >>>>>>> throws Exception { super(parent); //The below three > >>>>>>> lines are added by me to work for Tomcat 9. > >>>>>>> StandardRoot standardRoot = new StandardRoot(); > >>>>>>> standardRoot.addPreResources(new DirResourceSet()); > >>>>>>> setResources(standardRoot);// End for tomcat 9 > >>>>>>> changes. > >>>>>>> > >>>>>>> for (URL urlForJars : getClassPath(SHARED_LIB)) { > >>>>>>> addURL(urlForJars); } start(); } > >>>>>>> > >>>>>>> It didn't work. > >>>>>>> > >>>>>>> public class CustomSharedClassLoader extends > >>>>>>> WebappClassLoader{//Which takes shared folder libarary, > >>>>>>> it returns those classes.} > >>>> > >>>> You should be able to ditch your custom ClassLoader > >>>> entirely. > >>>> > >>>> -chris > >>>>> > >>>>> ------------------------------------------------------------------ > - --- > >>>>> > >>>>> > > > >>>>> > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > >>>>> For additional commands, e-mail: > >>>>> users-h...@tomcat.apache.org > >>>>> > >>>>> > >>>> > >> > >> --------------------------------------------------------------------- > >> > >> > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > >> For additional commands, e-mail: users-h...@tomcat.apache.org > >> > >> > > > -----BEGIN PGP SIGNATURE----- > Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ > > iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAly2RzgACgkQHPApP6U8 > pFilIA/+NvG9+sG1tPbWyAXvy9bwGnRATgTZqxGGWvGZ2XL2Knkt+lPaoh7Vtum9 > jYm4ZUIWNrkg4APxCwHXnfNlkLEF36igANlytDlBBUoVKBqEgngWUqR2w19yeRma > 8GS7YbDS6bUJ/KQTBEkeTeyf7EdLHVfJwrnKZ6qxV2QmC+IBwCr7I2vlWwx59qac > CqCL97FzRjtwDa6sHsC5PYsdu0fy8z4NzI4Ro4bcKNjDnvsQ0LSaKR0WM6OlaHAW > wFayoV/oUK8uRbDrS3q4pOtAnLxwF+CVrk0x7clpyPnqlSO0TIebZ+ejOEe4lsHK > gC33pK+vpKtl3d68WNf4aZfjXdrqsnF0IvnPPayAThVysHHOfJqGyYL2wdtmFru9 > vOKKIPqM4TT6V0BWZiX4lrE/kbF8c4KhpdtdIkFyf8KqWtezYBZIjIlEEaoiqlSO > KWdnrxRQ3Y2gJMUBAUDK0CiEl8Rw/L030CUmeLabNvN8MORpva2GOIGUk2wUVRwB > gSWShGDgaUC1KsdEPNf8Sawb9J1yVOAxdQH2U05Z0cf2gMcmHVgrJQ0+mSZMvvhJ > CiEumW37P4Z0jkcKyeISrE0T7p90rvaXQLrwSNIqTuzDKQXhmUXWUofktdH51541 > WQvgsg15JV3OH13xtjftrQDLZwZ8HYrn47kpTlOXrpfM0ITzvuM= > =N2Dl > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > -- "Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better." - Samuel Beckett
