shuo li [https://community.jboss.org/people/alonemoon6616] created the discussion "JBOSS AS7,SPRING MVC,MYSQLDATASOURCE" To view the discussion, visit: https://community.jboss.org/message/754677#754677 -------------------------------------------------------------- *I use the JBOSS of ECLIPSE plugin, create a  SPRING MVC project:* https://community.jboss.org/servlet/JiveServlet/showImage/2-754677-19250/... https://community.jboss.org/servlet/JiveServlet/downloadImage/2-754677-19... *After that, I was JBOSS AS 7 server standalone \ configuration \ standalone.xml  create a datasource.*        <datasources>                 <datasource jndi-name="java:jboss/datasources/MySqlDS" pool-name="MySqlDS" enabled="true" use-java-context="true">                     <connection-url>jdbc:mysql://localhost:3306/activiti?useUnicode=true&amp;characterEncoding=UTF-8</connection-url>                     <driver>mysql</driver>                     <security>                         <user-name>root</user-name>                         <password>123456</password>                     </security>                 </datasource>                 <datasource jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS" enabled="true" use-java-context="true">                     <connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1</connection-url>                     <driver>h2</driver>                     <security>                         <user-name>sa</user-name>                         <password>sa</password>                     </security>                 </datasource>                 <drivers>                     <driver name="h2" module="com.h2database.h2">                         <xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>                     </driver>                     <driver name="mysql" module="com.mysqldatabase.mysql">                         <xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>                     </driver>                 </drivers>         </datasources> *After that, I modified the spring-quickstart-ds.xml datasource,look like this:* <?xml version="1.0" encoding="UTF-8"?> <!-- This is an unmanaged datasource. It should be used for proofs of concept    or testing only. It uses H2, an in memory database that ships with JBoss    AS. --> <datasources xmlns=" http://www.jboss.org/ironjacamar/schema http://www.jboss.org/ironjacamar/schema"    xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation=" http://www.jboss.org/ironjacamar/schema http://www.jboss.org/ironjacamar/schema http://docs.jboss.org/ironjacamar/schema/datasources_1_0.xsd http://docs.jboss.org/ironjacamar/schema/datasources_1_0.xsd">    <!-- The datasource is bound into JNDI at this location. We reference       this in META-INF/persistence.xml -->    <datasource jndi-name="java:jboss/datasources/SpringQuickstartDS"       pool-name="mysqlds" enabled="true"       use-java-context="true">       <connection-url>jdbc:mysql://localhost:3306/activiti?useUnicode=true&amp;characterEncoding=UTF-8</connection-url>       <driver>mysql</driver>       <security>          <user-name>root</user-name>          <password>123456</password>       </security>    </datasource> </datasources> *After that,in  the jboss-deployment-structure.xml ,  I increased a module like :* *<module name="com.mysqldatabase.mysql"/>* https://community.jboss.org/servlet/JiveServlet/showImage/2-754677-19251/... https://community.jboss.org/servlet/JiveServlet/downloadImage/2-754677-19... *last ,  I start  service.an error like* 13:30:53,796 INFO  [org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator] (MSC service thread 1-1) HHH000130: Instantiating explicit connection provider: org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider 13:30:54,015 WARN  [org.jboss.jca.core.connectionmanager.pool.strategy.OnePool] (MSC service thread 1-1) IJ000604: Throwable while attempting to get a new connection: null: javax.resource.ResourceException: Could not create connection           at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:277)           at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:235)           at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreArrayListManagedConnectionPool.createConnectionEventListener(SemaphoreArrayListManagedConnectionPool.java:761)           at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreArrayListManagedConnectionPool.getConnection(SemaphoreArrayListManagedConnectionPool.java:343)           at org.jboss.jca.core.connectionmanager.pool.AbstractPool.getSimpleConnection(AbstractPool.java:397)           at org.jboss.jca.core.connectionmanager.pool.AbstractPool.getConnection(AbstractPool.java:365)           at org.jboss.jca.core.connectionmanager.AbstractConnectionManager.getManagedConnection(AbstractConnectionManager.java:329)           at org.jboss.jca.core.connectionmanager.tx.TxConnectionManagerImpl.getManagedConnection(TxConnectionManagerImpl.java:368)           at org.jboss.jca.core.connectionmanager.AbstractConnectionManager.allocateConnection(AbstractConnectionManager.java:464)           at org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:129)           at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:67) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.engine.jdbc.internal.JdbcServicesImpl$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcServicesImpl.java:253) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:119) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2270) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2266) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1735) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:84) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:904) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:889) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]           at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]           at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:162) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]           at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.start(PersistenceUnitServiceImpl.java:85) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]           at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)           at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)           at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_29]           at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_29]           at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_29] Caused by: java.sql.SQLException: java.lang.NoClassDefFoundError: com/mysql/jdbc/authentication/Sha256PasswordPlugin           at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1074) [mysql-connector-java-5.1.21.jar:]           at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:988) [mysql-connector-java-5.1.21.jar:]           at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:974) [mysql-connector-java-5.1.21.jar:]           at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:919) [mysql-connector-java-5.1.21.jar:]           at com.mysql.jdbc.Util.handleNewInstance(Util.java:435) [mysql-connector-java-5.1.21.jar:]           at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399) [mysql-connector-java-5.1.21.jar:]           at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:334) [mysql-connector-java-5.1.21.jar:]           at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:249)           ... 30 more 13:30:54,093 WARN  [org.hibernate.engine.jdbc.internal.JdbcServicesImpl] (MSC service thread 1-1) HHH000342: Could not obtain connection to query metadata : javax.resource.ResourceException: IJ000453: Unable to get managed connection for java:jboss/datasources/SpringQuickstartDS 13:30:54,109 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC00001: Failed to start service jboss.persistenceunit."springmvc.war#primary": org.jboss.msc.service.StartException in service jboss.persistenceunit."springmvc.war#primary": Failed to start service           at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1767) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]           at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_29]           at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_29]           at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_29] Caused by: javax.persistence.PersistenceException: [PersistenceUnit: primary] Unable to build EntityManagerFactory           at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:914)           at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:889)           at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73)           at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:162)           at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.start(PersistenceUnitServiceImpl.java:85)           at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]           at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]           ... 3 more Caused by: org.hibernate.HibernateException: Connection cannot be null when 'hibernate.dialect' not set           at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:97)           at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:67)           at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:172)           at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)           at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)           at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)           at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71)           at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2270)           at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2266)           at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1735)           at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:84)           at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:904)           ... 9 more 13:30:54,156 INFO  [org.jboss.as] (MSC service thread 1-1) JBAS015951: Admin console listening on http://127.0.0.1:9990 http://127.0.0.1:9990 13:30:54,156 ERROR [org.jboss.as] (MSC service thread 1-1) JBAS015875: JBoss AS 7.1.1.Final "Brontes" started (with errors) in 9422ms - Started 275 of 467 services (114 services failed or missing dependencies, 76 services are passive or on-demand) 13:30:54,375 INFO  [org.jboss.as.server] (DeploymentScanner-threads - 2) JBAS015870: Deploy of deployment "springmvc.war" was rolled back with failure message {"JBAS014671: Failed services" => {"jboss.persistenceunit.\"springmvc.war#primary\"" => "org.jboss.msc.service.StartException in service jboss.persistenceunit.\"springmvc.war#primary\": Failed to start service"}} 13:30:54,453 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-2) JBAS010409: Unbound data source [jboss/datasources/SpringQuickstartDS] 13:30:54,531 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-3) JBAS015877: Stopped deployment springmvc.war in 162ms 13:30:54,531 INFO  [org.jboss.as.controller] (DeploymentScanner-threads - 2) JBAS014774: Service status report JBAS014777:   Services which failed to start:      service jboss.persistenceunit."springmvc.war#primary": org.jboss.msc.service.StartException in service jboss.persistenceunit."springmvc.war#primary": Failed to start service 13:30:54,546 ERROR [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) {"JBAS014653: Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-2" => {"JBAS014671: Failed services" => {"jboss.persistenceunit.\"springmvc.war#primary\"" => "org.jboss.msc.service.StartException in service jboss.persistenceunit.\"springmvc.war#primary\": Failed to start service"}}}} *please help me!!!!thank you* * * * * -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/754677#754677] Start a new discussion in Datasource Configuration at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]