when loading the web project from the browser in the console in the console, it throws the following error messages:

ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.tomcat.util.digester.SetPropertiesRule begin WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:NewWebProject20' did not find a matching property. ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Server version: Apache Tomcat/7.0.75 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Server built: Jan 18 2017 20:54:42 UTC ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Server number: 7.0.75.0 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: OS Name: Windows 7 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: OS Version: 6.1 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Architecture: amd64 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Java Home: C:\Program Files\Java\jre1.8.0_101 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: JVM Version: 1.8.0_101-b13 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: JVM Vendor: Oracle Corporation ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: CATALINA_BASE: F:\софт\JAVA\Workspace ΠΊΠΎΠ΄Ρ‹ Ρ„Π°ΠΉΠ»Ρ‹ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌ для Ρ€Π°Π±ΠΎΡ‚Ρ‹ Eclipse\.metadata\.plugins\org.eclipse.wst.server.core\tmp0 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: CATALINA_HOME: C:\Program Files\Apache Software Foundation\Tomcat 7.0 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Dcatalina.base=F:\софт\JAVA\Workspace ΠΊΠΎΠ΄Ρ‹ Ρ„Π°ΠΉΠ»Ρ‹ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌ для Ρ€Π°Π±ΠΎΡ‚Ρ‹ Eclipse\.metadata\.plugins\org.eclipse.wst.server.core\tmp0 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Dcatalina.home=C:\Program Files\Apache Software Foundation\Tomcat 7.0 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Dwtp.deploy=F:\софт\JAVA\Workspace ΠΊΠΎΠ΄Ρ‹ Ρ„Π°ΠΉΠ»Ρ‹ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌ для Ρ€Π°Π±ΠΎΡ‚Ρ‹ Eclipse\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Djava.endorsed.dirs=C:\Program Files\Apache Software Foundation\Tomcat 7.0\endorsed ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Dfile.encoding=Cp1251 ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.core.AprLifecycleListener lifecycleEvent INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre1.8.0_101\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre1.8.0_121/bin/server;C:/Program Files/Java/jre1.8.0_121/bin;C:/Program Files/Java/jre1.8.0_121/lib/amd64;C:\Program Files (x86)\Borland\Delphi7\Bin;C:\Program Files (x86)\Borland\Delphi7\Projects\Bpl\;C:\Program Files (x86)\Common Files\Intel\Shared Files\cpp\bin\Intel64;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\AMD APP\bin\x86_64;C:\Program Files (x86)\AMD APP\bin\x86;C:\Program Files (x86)\Common Files\ArcSoft\Bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files (x86)\Common Files\Autodesk Shared\;C:\Program Files\Common Files\Autodesk Shared\;C:\Program Files (x86)\AMD\ATI.ACE\Core-Static;C:\Program Files (x86)\Skype\Phone\;C:\Program Files\eclipse;;. ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["http-bio-8080"] ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["ajp-bio-8009"] ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 683 ms ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.core.StandardService startInternal INFO: Starting service Catalina ΠΌΠ°Ρ€ 21, 2017 2:28:14 AM org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/7.0.75 ΠΌΠ°Ρ€ 21, 2017 2:28:15 AM org.apache.coyote.AbstractProtocol start INFO: Starting ProtocolHandler ["http-bio-8080"] ΠΌΠ°Ρ€ 21, 2017 2:28:15 AM org.apache.coyote.AbstractProtocol start INFO: Starting ProtocolHandler ["ajp-bio-8009"] ΠΌΠ°Ρ€ 21, 2017 2:28:15 AM org.apache.catalina.startup.Catalina start INFO: Server startup in 541 ms 0 ΠΌΠ°Ρ€ 21, 2017 5:42:37 PM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Allocate exception for servlet by.gsu.epamlab.servlets.PieceServlet java.lang.ClassNotFoundException: com.mysql.jdbc.Driver at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at by.gsu.epamlab.DAO.ConnectorDB.getConnection(ConnectorDB.java:26) at by.gsu.epamlab.DAO.AbstractDAO.<init>(AbstractDAO.java:20) at by.gsu.epamlab.DAO.PieceDAO.<init>(PieceDAO.java:28) at by.gsu.epamlab.servlets.PieceServlet.init(PieceServlet.java:27) at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1269) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1182) at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:853) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:134) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:452) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1087) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source)

And when you run the same database through the runner everything works fine

The error clearly lies here:

 EVERE: Allocate exception for servlet by.gsu.epamlab.servlets.PieceServlet java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

But I can not find a solution in the forums. Help me please. I can not finish the project because of this

  • How do you add a .jar connector to a project? - MrFylypenko
  • via libraries - Pavel
  • Properties - Java buildpath - add external Jar's - Pavel
  • Ok, and how do you build the project yourself using maven or gradle ? .jar is in the project folder or not? The error clearly indicates that the library is incorrectly connected. Need more data to reproduce the error. - MrFylypenko
  • figured out the need in the project itself. We need to find the following path: your projects folder \ .metadata \ .plugins \ org.eclipse.wst.server.core \ tmp0 \ wtpwebapps. You already have your project in this folder and here you need to copy all third-party libraries into the lib folder and then everything works fine. The whole reason why to do so, I do not know this suggested working advice. Can someone explain in more detail and on the fingers why is it necessary? - Pavel

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