I can not connect to the database via jdbc
Product summary: - IDE: Eclipse - Build: Maven - Framework: Vaadin - Server: WildFly 10.0.0 Added all necessary drivers to the lib folder and dependency pom.xml
Created class DatabaseHelper
@SuppressWarnings("serial") public class DatabaseHelper implements Serializable { private JDBCConnectionPool connectionPool = null; private static ResourceBundle bundle = ResourceBundle.getBundle("rts.data.databaseHelper"); public DatabaseHelper() { initConnectionPool(); } private void initConnectionPool() { try { connectionPool = new SimpleJDBCConnectionPool("org.postgresql.Driver",bundle.getString("connectionUri") ,bundle.getString("userName"), bundle.getString("password"), 2, 2); } catch (SQLException e) { e.printStackTrace(); } } public JDBCConnectionPool getConnectionPool() { return connectionPool; } } Created properties: databaseHelper.properties
connectionUri=jdbc:postgresql://localhost:5432/db.risk userName=postgres password=******* The DatabaseHelper class and properties databaseHelper are in the same package rts.data
Now I run WildFly in the console window and get errors:
18:00:56,015 WARN [org.jboss.modules] (default task-6) Failed to define class rts.data.databaseHelper in Module "deployment.OR.war:main" from Service Module Loader: java.lang.NoClassDefFoundError: Failed to link rts/data/databaseHelper (Module "deployment.OR.war:main" from Service Module Loader): rts/data/databaseHelper (wrong name: rts/data/DatabaseHelper) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:446) at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:274) at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:78) at org.jboss.modules.Module.loadModuleClass(Module.java:605) at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190) at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:363) at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:351) at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:93) at java.util.ResourceBundle$Control.newBundle(ResourceBundle.java:2640) at java.util.ResourceBundle.loadBundle(ResourceBundle.java:1501) at java.util.ResourceBundle.findBundle(ResourceBundle.java:1465) at java.util.ResourceBundle.findBundle(ResourceBundle.java:1419) at java.util.ResourceBundle.findBundle(ResourceBundle.java:1419) at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1361) at java.util.ResourceBundle.getBundle(ResourceBundle.java:773) at rts.data.DatabaseHelper.<clinit>(DatabaseHelper.java:13) at rts.appUI.MyUI.init(MyUI.java:39) at com.vaadin.ui.UI.doInit(UI.java:693) at com.vaadin.server.communication.UIInitHandler.getBrowserDetailsUI(UIInitHandler.java:216) at com.vaadin.server.communication.UIInitHandler.synchronizedHandleRequest(UIInitHandler.java:74) at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41) at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1436) at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:380) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) at io.undertow.websockets.jsr.JsrWebSocketFilter.doFilter(JsrWebSocketFilter.java:129) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50) at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:284) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263) at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:793) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Code 13 line:
private static ResourceBundle bundle = ResourceBundle.getBundle("rts.data.databaseHelper"); 39 line code
dbHelper = new DatabaseHelper(); 
в консольном окне получаю ошибки : ...something is missing here - default localeNoClassDefFoundErrorthen most likely the code is not necessary. It is necessary to specify: 1) complete error information, 2) which class was not found, 3) where this class is located and why you consider it available. - default localeLoginViewis not mentioned anywhere in the error, as well as the DBMS). Specify on which line the exception occurs (rts.data.DatabaseHelper.<clinit>(DatabaseHelper.java:13)) - default locale