Adding datasource to web.xml

src/main/webapp/WEB-INF/web.xml

@@ -5,6 +5,21 @@
 
     <display-name>SciPro</display-name>
 
+    <resource-ref>
+        <description>
+            Resource reference to the default database.
+        </description>
+        <res-ref-name>
+            java:comp/env/jdbc/defaultDS
+        </res-ref-name>
+        <res-type>
+            javax.sql.DataSource
+        </res-type>
+        <res-auth>
+            Container
+        </res-auth>
+    </resource-ref>
+
     <!-- Open session in view -->
     <filter>
         <filter-name>osiv</filter-name>