junit测试通过，但没有向数据库中添加表啊，也没有插入sql语句？本人小白一个，求高手指点。

Question

四月 11, 2016 4:31:06 下午 org.hibernate.internal.util.xml.DTDEntityResolver resolveEntityWARN: HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!四月 11, 2016 4:31:06 下午 org.hibernate.cfg.Configuration addResourceINFO: HHH000221: Reading mappings from resource: entity/Students.hbm.xml四月 11, 2016 4:31:06 下午 org.hibernate.internal.util.xml.DTDEntityResolver resolveEntityWARN: HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!四月 11, 2016 4:31:06 下午 org.hibernate.cfg.Configuration addResourceINFO: HHH000221: Reading mappings from resource: entity/Users.hbm.xml四月 11, 2016 4:31:06 下午 org.hibernate.internal.util.xml.DTDEntityResolver resolveEntityWARN: HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!四月 11, 2016 4:31:06 下午 org.hibernate.cfg.Configuration doConfigureINFO: HHH000041: Configured SessionFactory: null四月 11, 2016 4:31:07 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureWARN: HHH000402: Using Hibernate built-in connection pool (not for production use!)四月 11, 2016 4:31:07 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureINFO: HHH000115: Hibernate connection pool size: 20四月 11, 2016 4:31:07 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureINFO: HHH000006: Autocommit mode: false四月 11, 2016 4:31:07 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureINFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://test?useUnicode=true&characterEncoding=UTF-8]四月 11, 2016 4:31:07 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureINFO: HHH000046: Connection properties: {user=root, password=****}四月 11, 2016 4:31:19 下午 org.hibernate.engine.jdbc.internal.JdbcServicesImpl configureWARN: HHH000342: Could not obtain connection to query metadata : Communications link failure四月 11, 2016 4:31:21 下午 org.hibernate.tool.hbm2ddl.SchemaUpdate executeERROR: HHH000319: Could not get database metadatacom.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureCaused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureLast packet sent to the server was 0 ms ago. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:335) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2043) ... 39 moreCaused by: java.net.UnknownHostException: test at java.net.InetAddress.getAllByName0(InetAddress.java:1250) at java.net.InetAddress.getAllByName(InetAddress.java:1162) at java.net.InetAddress.getAllByName(InetAddress.java:1098) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:243) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:284) ... 40 more四月 11, 2016 4:31:21 下午 org.hibernate.tool.hbm2ddl.SchemaUpdate executeERROR: HHH000299: Could not complete schema updatecom.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureCaused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureLast packet sent to the server was 0 ms ago. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:335) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2043) ... 39 moreCaused by: java.net.UnknownHostException: test at java.net.InetAddress.getAllByName0(InetAddress.java:1250) at java.net.InetAddress.getAllByName(InetAddress.java:1162) at java.net.InetAddress.getAllByName(InetAddress.java:1098) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:243) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:284) ... 40 more四月 11, 2016 4:31:21 下午 org.hibernate.dialect.Dialect <init>INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect四月 11, 2016 4:31:21 下午 org.hibernate.tool.hbm2ddl.SchemaExport executeINFO: HHH000227: Running hbm2ddl schema export四月 11, 2016 4:31:21 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureWARN: HHH000402: Using Hibernate built-in connection pool (not for production use!)四月 11, 2016 4:31:21 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureINFO: HHH000115: Hibernate connection pool size: 20四月 11, 2016 4:31:21 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureINFO: HHH000006: Autocommit mode: false四月 11, 2016 4:31:21 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureINFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://test?useUnicode=true&characterEncoding=UTF-8]四月 11, 2016 4:31:21 下午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureINFO: HHH000046: Connection properties: {user=root, password=****}四月 11, 2016 4:31:21 下午 org.hibernate.tool.hbm2ddl.SchemaExport executeERROR: HHH000231: Schema export unsuccessfulcom.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureLast packet sent to the server was 0 ms ago. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2120) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:723) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282) at org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl.getConnection(DriverManagerConnectionProviderImpl.java:204) at org.hibernate.tool.hbm2ddl.ManagedProviderConnectionHelper.prepare(ManagedProviderConnectionHelper.java:55) at org.hibernate.tool.hbm2ddl.DatabaseExporter.<init>(DatabaseExporter.java:52) at org.hibernate.tool.hbm2ddl.SchemaExport.execute(SchemaExport.java:368) at org.hibernate.tool.hbm2ddl.SchemaExport.create(SchemaExport.java:305) at org.hibernate.tool.hbm2ddl.SchemaExport.create(SchemaExport.java:294) at entity.TestStudents.testSchemaExport(TestStudents.java:20) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) at org.junit.runners.ParentRunner.run(ParentRunner.java:300) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureLast packet sent to the server was 0 ms ago. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:335) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2043) ... 39 moreCaused by: java.net.UnknownHostException: test at java.net.InetAddress.getAllByName0(InetAddress.java:1250) at java.net.InetAddress.getAllByName(InetAddress.java:1162) at java.net.InetAddress.getAllByName(InetAddress.java:1098) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:243) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:284) ... 40 more四月 11, 2016 4:31:21 下午 org.hibernate.tool.hbm2ddl.SchemaExport executeINFO: HHH000230: Schema export complete

Answer 1

Error信息没有看到？
ERROR: HHH000319: Could not get database metadata
ERROR: HHH000299: Could not complete schema update