EclipseLinkの無い最適なドライバ：mysqlの

ません適しJDBCドライバが見つかります。mysql：// localhostを：3306/mazedb

完全なエラー

INFO: [EL Info]: 2012-01-03 
23:27:35.522--ServerSession(11375975)--EclipseLink, version: Eclipse 
Persistence Services - 2.3.0.v20110604-r9504 

INFO: [EL Severe]: 2012-01-03 
23:27:35.528--ServerSession(11375975)--Local Exception Stack: 
Exception [EclipseLink-4002] (Eclipse Persistence Services - 
2.3.0.v20110604-r9504): org.eclipse.persistence.exceptions.DatabaseException Internal 
Exception: java.sql.SQLException: No suitable driver found for 
jdbc:mysql://localhost:3306/mazedb Error Code: 0 at 
org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:324) 
    at 
org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:319) 
    at 
org.eclipse.persistence.sessions.DefaultConnector.connect(DefaultConnector.java:138) 
    at 
org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162) 
    at 
org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:582) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:206) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:472) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getDatabaseSession(EntityManagerFactoryDelegate.java:188) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:277) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:290) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:268) 
    at 
com.maze.service.AccountService.validateLogin(AccountService.java:18) 
    at 
com.maze.controller.AccountController.performLogin(AccountController.java:31) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597)  at 
com.sun.el.parser.AstValue.invoke(AstValue.java:234) at 
com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297) 
    at 
com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) 
    at 
javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) 
    at 
com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) 
    at javax.faces.component.UICommand.broadcast(UICommand.java:315) at 
javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) 
    at 
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 
    at 
com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at 
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) at 
org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539) 
    at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281) 
    at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
    at 
org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 
    at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98) at 
com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91) 
    at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162) 
    at 
org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330) 
    at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) 
    at 
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174) 
    at 
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828) 
    at 
com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725) 
    at 
com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019) 
    at 
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225) 
    at 
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 
    at 
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 
    at 
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) 
    at 
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 
    at 
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 
    at 
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) 
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)  at 
com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) 
    at 
com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) 
    at java.lang.Thread.run(Thread.java:662) Caused by: 
java.sql.SQLException: No suitable driver found for 
jdbc:mysql://localhost:3306/mazedb at 
java.sql.DriverManager.getConnection(DriverManager.java:602) at 
java.sql.DriverManager.getConnection(DriverManager.java:154) at 
org.eclipse.persistence.sessions.DefaultConnector.connect(DefaultConnector.java:98) 
    ... 51 more 

WARNING: #{accountController.performLogin}: 
javax.persistence.PersistenceException: Exception [EclipseLink-4002] 
(Eclipse Persistence Services - 2.3.0.v20110604-r9504): 
org.eclipse.persistence.exceptions.DatabaseException Internal 
Exception: java.sql.SQLException: No suitable driver found for 
jdbc:mysql://localhost:3306/mazedb Error Code: 0 
javax.faces.FacesException: #{accountController.performLogin}: 
javax.persistence.PersistenceException: Exception [EclipseLink-4002] 
(Eclipse Persistence Services - 2.3.0.v20110604-r9504): 
org.eclipse.persistence.exceptions.DatabaseException Internal 
Exception: java.sql.SQLException: No suitable driver found for 
jdbc:mysql://localhost:3306/mazedb Error Code: 0 at 
com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118) 
    at javax.faces.component.UICommand.broadcast(UICommand.java:315) at 
javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) 
    at 
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 
    at 
com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at 
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) at 
org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539) 
    at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281) 
    at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
    at 
org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 
    at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98) at 
com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91) 
    at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162) 
    at 
org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330) 
    at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) 
    at 
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174) 
    at 
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828) 
    at 
com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725) 
    at 
com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019) 
    at 
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225) 
    at 
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 
    at 
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 
    at 
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) 
    at 
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 
    at 
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 
    at 
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) 
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)  at 
com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) 
    at 
com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) 
    at java.lang.Thread.run(Thread.java:662) Caused by: 
javax.faces.el.EvaluationException: 
javax.persistence.PersistenceException: Exception [EclipseLink-4002] 
(Eclipse Persistence Services - 2.3.0.v20110604-r9504): 
org.eclipse.persistence.exceptions.DatabaseException Internal 
Exception: java.sql.SQLException: No suitable driver found for 
jdbc:mysql://localhost:3306/mazedb Error Code: 0 at 
javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) 
    at 
com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) 
    ... 32 more Caused by: javax.persistence.PersistenceException: 
Exception [EclipseLink-4002] (Eclipse Persistence Services - 
2.3.0.v20110604-r9504): org.eclipse.persistence.exceptions.DatabaseException Internal 
Exception: java.sql.SQLException: No suitable driver found for 
jdbc:mysql://localhost:3306/mazedb Error Code: 0 at 
org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:501) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getDatabaseSession(EntityManagerFactoryDelegate.java:188) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:277) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:290) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:268) 
    at 
com.maze.service.AccountService.validateLogin(AccountService.java:18) 
    at 
com.maze.controller.AccountController.performLogin(AccountController.java:31) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597)  at 
com.sun.el.parser.AstValue.invoke(AstValue.java:234) at 
com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297) 
    at 
com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) 
    at 
javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) 
    ... 33 more Caused by: Exception [EclipseLink-4002] (Eclipse 
Persistence Services - 2.3.0.v20110604-r9504): 
org.eclipse.persistence.exceptions.DatabaseException Internal 
Exception: java.sql.SQLException: No suitable driver found for 
jdbc:mysql://localhost:3306/mazedb Error Code: 0 at 
org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:324) 
    at 
org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:319) 
    at 
org.eclipse.persistence.sessions.DefaultConnector.connect(DefaultConnector.java:138) 
    at 
org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162) 
    at 
org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:582) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:206) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:472) 
    ... 47 more Caused by: java.sql.SQLException: No suitable driver 
found for jdbc:mysql://localhost:3306/mazedb at 
java.sql.DriverManager.getConnection(DriverManager.java:602) at 
java.sql.DriverManager.getConnection(DriverManager.java:154) at 
org.eclipse.persistence.sessions.DefaultConnector.connect(DefaultConnector.java:98) 
    ... 51 more 

INFO: Exit : invoke_application 5 WARNING: StandardWrapperValve[Faces 
Servlet]: PWC1406: Servlet.service() for servlet Faces Servlet threw 
exception javax.faces.el.EvaluationException: 
javax.persistence.PersistenceException: Exception [EclipseLink-4002] 
(Eclipse Persistence Services - 2.3.0.v20110604-r9504): 
org.eclipse.persistence.exceptions.DatabaseException Internal 
Exception: java.sql.SQLException: No suitable driver found for 
jdbc:mysql://localhost:3306/mazedb Error Code: 0 at 
javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) 
    at 
com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) 
    at javax.faces.component.UICommand.broadcast(UICommand.java:315) at 
javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) 
    at 
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 
    at 
com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at 
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) at 
org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539) 
    at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281) 
    at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
    at 
org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 
    at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98) at 
com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91) 
    at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162) 
    at 
org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330) 
    at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) 
    at 
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174) 
    at 
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828) 
    at 
com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725) 
    at 
com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019) 
    at 
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225) 
    at 
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 
    at 
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 
    at 
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) 
    at 
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 
    at 
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 
    at 
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) 
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)  at 
com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) 
    at 
com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) 
    at java.lang.Thread.run(Thread.java:662) Caused by: 
javax.persistence.PersistenceException: Exception [EclipseLink-4002] 
(Eclipse Persistence Services - 2.3.0.v20110604-r9504): 
org.eclipse.persistence.exceptions.DatabaseException Internal 
Exception: java.sql.SQLException: No suitable driver found for 
jdbc:mysql://localhost:3306/mazedb Error Code: 0 at 
org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:501) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getDatabaseSession(EntityManagerFactoryDelegate.java:188) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:277) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:290) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:268) 
    at 
com.maze.service.AccountService.validateLogin(AccountService.java:18) 
    at 
com.maze.controller.AccountController.performLogin(AccountController.java:31) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597)  at 
com.sun.el.parser.AstValue.invoke(AstValue.java:234) at 
com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297) 
    at 
com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) 
    at 
javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) 
    ... 33 more Caused by: Exception [EclipseLink-4002] (Eclipse 
Persistence Services - 2.3.0.v20110604-r9504): 
org.eclipse.persistence.exceptions.DatabaseException Internal 
Exception: java.sql.SQLException: No suitable driver found for 
jdbc:mysql://localhost:3306/mazedb Error Code: 0 at 
org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:324) 
    at 
org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:319) 
    at 
org.eclipse.persistence.sessions.DefaultConnector.connect(DefaultConnector.java:138) 
    at 
org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162) 
    at 
org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:582) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:206) 
    at 
org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:472) 
    ... 47 more Caused by: java.sql.SQLException: No suitable driver 
found for jdbc:mysql://localhost:3306/mazedb at 
java.sql.DriverManager.getConnection(DriverManager.java:602) at 
java.sql.DriverManager.getConnection(DriverManager.java:154) at 
org.eclipse.persistence.sessions.DefaultConnector.connect(DefaultConnector.java:98) 
    ... 51 more

persistence.xml

<?xml version="1.0" encoding="UTF-8"?> 
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"> 

    <persistence-unit name="Maze" transaction-type="RESOURCE_LOCAL"> 
     <properties> 
      <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/mazedb"/> 
      <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/> 
      <property name="javax.persistence.jdbc.user" value="maze"/> 
      <property name="javax.persistence.jdbc.password" value="maze"/> 
     </properties> 

    </persistence-unit> 
</persistence>

mysqlコネクタがビルドパスに含まれています

出典

2012-01-03 TGM

No suitable driver found for jdbc:mysql://localhost:3306/mazedb

この例外は、基本的には2考えられる原因があります。

JDBCのURLは（基本的には、Driver#acceptsURL()はこれまでにロードされたJDBCドライバのすべてについてfalse戻った）間違っています。
JDBCドライバはまったく読み込まれていません（ランタイムクラスパスに見つからないか、JDBCドライバクラス名にタイプミスがあります）。

これまでのところ、JDBCのURLとドライバのクラス名が正しいようです。したがって、ドライバはランタイムクラスパスにはまったくありません。

The mysql connector is included in the build path

JDBCドライバは、Webアプリケーションの実行時のクラスパスに存在する必要があります。ローカル永続ユニットの場合は、JDBCドライバのJARファイルを/WEB-INF/libフォルダに配置する必要があります。

この例外は、この例外ではありません。任意の場所にJARファイルを配置し、の構築パスに手動でファイルを追加する場合は、デプロイメントアセンブリで指定することなくこの例外が発生する可能性があります。これは正しくない。 /WEB-INF/libフォルダにJARファイルをドロップするだけで、Eclipseはプロジェクトのプロパティに何も触れなくても、適切に設定するために必要なすべての魔法を実行します。

具体的な問題へ

無関係、（地元の代わりにリソースをJTAに設定するトランザクション・タイプ）コンテナ管理トランザクションを検討します。トランザクションを管理するために、EJBの定型コードを大幅に削減します。コンテナ管理のJNDIデータソースを作成し、代わりにサーバーの/libにJDBCドライバを配置する必要があります。

出典

2012-01-04 13:01:58 BalusC

Glassfish3でConnectionPoolDataSourceを作成し、Glassfishのlibにコネクタを配置しました。今はうまくいくようです。これは正しい方法ですか？同じ設定をしていない可能性があることを知っている別のWebコンテナでアプリケーションを実行するとどうなりますか？ – TGM

他のコンテナに同じJNDI名を持つデータソースを設定するだけで済みます（あるいは、JNDI名を環境変数として外部設定可能にする必要があります）。接続プーリングとJTAトランザクション（すべてのJava EE 6コンテナがサポートしている）をサポートしているかぎり、どんな種類のデータソースでも問題ありません。 – BalusC

これはサーバーで実行されていますか？あなたのプロジェクトにmysqlデータベースドライバjarファイルがありますか？

ここでは、私のドライバのセットアップがEclipseでどのようになっているかを示します。この画面には、データベースのパースペクティブが表示され、新しいデータソースが追加されます。ドライバjarファイルをインクルードして、ドライバを見つける場所を知るようにします。これがサーバー上にある場合は、jarファイルをlibまたはdeployフォルダに入れて、ドライバを見つけることができます。

Mysql setup in eclipse

出典

2012-01-04 00:18:30 Logan

jdbc：mysql：// localhost：3306/mazedbの適切なドライバが見つかりません – TGM

EclipseLinkの無い最適なドライバ：mysqlの

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