我是Grails的新手.我正在尝试使用grails 2.3.4连接
postgresql 9.0数据库服务器.我已将postgresql-9.0-801.jdbc3.jar文件添加到grails应用程序的lib文件夹中.当我在Intellij编辑器上运行应用程序时,会出现以下错误.
哪里我做错了?
哪里我做错了?
|Running Grails application Error | 2013-12-08 18:44:55,837 [localhost-startStop-1] ERROR pool.ConnectionPool - Unable to create initial connections of pool. Message: Driver:org.postgresql.Driver@7c3b99 returned null for URL:jdbc:postgres://localhost/clientpro Line | Method ->> 303 | innerRun in java.util.concurrent.FutureTask$Sync | 138 | run in java.util.concurrent.FutureTask | 895 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker | 918 | run in '' ^ 662 | run . . in java.lang.Thread Error | 2013-12-08 18:44:55,877 [localhost-startStop-1] ERROR pool.ConnectionPool - Unable to create initial connections of pool. Message: Driver:org.postgresql.Driver@1ab5d6d returned null for URL:jdbc:postgres://localhost/clientpro Line | Method ->> 303 | innerRun in java.util.concurrent.FutureTask$Sync | 138 | run in java.util.concurrent.FutureTask | 895 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker | 918 | run in '' ^ 662 | run . . in java.lang.Thread Error | 2013-12-08 18:44:56,160 [localhost-startStop-1] ERROR pool.ConnectionPool - Unable to create initial connections of pool. Message: Driver:org.postgresql.Driver@6bf551 returned null for URL:jdbc:postgres://localhost/clientpro Line | Method ->> 303 | innerRun in java.util.concurrent.FutureTask$Sync | 138 | run in java.util.concurrent.FutureTask | 895 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker | 918 | run in '' ^ 662 | run . . in java.lang.Thread Error | 2013-12-08 18:44:56,174 [localhost-startStop-1] ERROR context.GrailsContextLoader - Error initializing the application: Error creating bean with name 'transactionManagerPostProcessor': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Cannot resolve reference to bean 'lobHandlerDetector' while setting bean property 'lobHandler'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'lobHandlerDetector': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is java.sql.SQLException: Driver:org.postgresql.Driver@6bf551 returned null for URL:jdbc:postgres://localhost/clientpro Message: Error creating bean with name 'transactionManagerPostProcessor': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Cannot resolve reference to bean 'lobHandlerDetector' while setting bean property 'lobHandler'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'lobHandlerDetector': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is java.sql.SQLException: Driver:org.postgresql.Driver@6bf551 returned null for URL:jdbc:postgres://localhost/clientpro Line | Method ->> 303 | innerRun in java.util.concurrent.FutureTask$Sync | 138 | run in java.util.concurrent.FutureTask | 895 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker | 918 | run in '' ^ 662 | run . . in java.lang.Thread Caused by BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Cannot resolve reference to bean 'lobHandlerDetector' while setting bean property 'lobHandler'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'lobHandlerDetector': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is java.sql.SQLException: Driver:org.postgresql.Driver@6bf551 returned null for URL:jdbc:postgres://localhost/clientpro ->> 303 | innerRun in java.util.concurrent.FutureTask$Sync | 138 | run in java.util.concurrent.FutureTask | 895 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker | 918 | run in '' ^ 662 | run . . in java.lang.Thread Caused by BeanCreationException: Error creating bean with name 'sessionFactory': Cannot resolve reference to bean 'lobHandlerDetector' while setting bean property 'lobHandler'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'lobHandlerDetector': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is java.sql.SQLException: Driver:org.postgresql.Driver@6bf551 returned null for URL:jdbc:postgres://localhost/clientpro ->> 303 | innerRun in java.util.concurrent.FutureTask$Sync | 138 | run in java.util.concurrent.FutureTask | 895 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker | 918 | run in '' ^ 662 | run . . in java.lang.Thread Caused by BeanCreationException: Error creating bean with name 'lobHandlerDetector': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is java.sql.SQLException: Driver:org.postgresql.Driver@6bf551 returned null for URL:jdbc:postgres://localhost/clientpro ->> 303 | innerRun in java.util.concurrent.FutureTask$Sync | 138 | run in java.util.concurrent.FutureTask | 895 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker | 918 | run in '' ^ 662 | run . . in java.lang.Thread Caused by MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is java.sql.SQLException: Driver:org.postgresql.Driver@6bf551 returned null for URL:jdbc:postgres://localhost/clientpro ->> 303 | innerRun in java.util.concurrent.FutureTask$Sync | 138 | run in java.util.concurrent.FutureTask | 895 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker | 918 | run in '' ^ 662 | run . . in java.lang.Thread Caused by SQLException: Driver:org.postgresql.Driver@6bf551 returned null for URL:jdbc:postgres://localhost/clientpro ->> 303 | innerRun in java.util.concurrent.FutureTask$Sync | 138 | run in java.util.concurrent.FutureTask | 895 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker | 918 | run in '' ^ 662 | run . . in java.lang.Thread Error | Forked Grails VM exited with error Process finished with exit code 1
DataSource文件: –
dataSource { pooled = true driverClassName = "org.postgresql.Driver" dialect = org.hibernate.dialect.PostgreSQLDialect username = "postgres" password = "password" } hibernate { cache.use_second_level_cache = true cache.use_query_cache = true cache.provider_class='org.hibernate.cache.EhCacheProvider' } // environment specific settings environments { development { dataSource { dbCreate = "update" url = "jdbc:postgres://localhost/clientpro" username = "postgres" password = "password" } } test { dataSource { dbCreate = "update" url = "jdbc:postgres://localhost/clientpro" username = "postgres" password = "password" } } production { dataSource { dbCreate = "update" url = "jdbc:postgres://localhost/clientpro" username = "postgres" password = "password" } } }
尝试使用不同的前缀:
url = "jdbc:postgresql://localhost/clientpro"
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