Grails与DB2数据库的连接

我试图将我的grails应用程序连接到本地运行的DB2数据库。当我想启动我的应用程序时，会出现多次错误？我只开始介绍grails，甚至更多关于DB2数据库管理的内容。有人能帮我吗

这是错误记录

    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 'hibernateProperties' while setting bean property 'hibernateProperties'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'hibernateProperties': Cannot resolve reference to bean 'dialectDetector' while setting bean property 'properties' with key [hibernate.dialect]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dialectDetector': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class 'org.h2.Driver' for connect URL 'jdbc:db2://localhost:50000/DTH3_E:currentSchema=DFP_V115'
   Line | Method
->> 303 | innerRun in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   138 | run      in java.util.concurrent.FutureTask
|   886 | runTask  in java.util.concurrent.ThreadPoolExecutor$Worker
|   908 | 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 'hibernateProperties' while setting bean property 'hibernateProperties'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'hibernateProperties': Cannot resolve reference to bean 'dialectDetector' while setting bean property 'properties' with key [hibernate.dialect]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dialectDetector': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class 'org.h2.Driver' for connect URL 'jdbc:db2://localhost:50000/DTH3_E:currentSchema=DFP_V115'
->> 303 | innerRun in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   138 | run      in java.util.concurrent.FutureTask
|   886 | runTask  in java.util.concurrent.ThreadPoolExecutor$Worker
|   908 | run      in     ''
^   662 | run . .  in java.lang.Thread
Caused by BeanCreationException: Error creating bean with name 'sessionFactory': Cannot resolve reference to bean 'hibernateProperties' while setting bean property 'hibernateProperties'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'hibernateProperties': Cannot resolve reference to bean 'dialectDetector' while setting bean property 'properties' with key [hibernate.dialect]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dialectDetector': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class 'org.h2.Driver' for connect URL 'jdbc:db2://localhost:50000/DTH3_E:currentSchema=DFP_V115'
->> 303 | innerRun in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   138 | run      in java.util.concurrent.FutureTask
|   886 | runTask  in java.util.concurrent.ThreadPoolExecutor$Worker
|   908 | run      in     ''
^   662 | run . .  in java.lang.Thread
Caused by BeanCreationException: Error creating bean with name 'hibernateProperties': Cannot resolve reference to bean 'dialectDetector' while setting bean property 'properties' with key [hibernate.dialect]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dialectDetector': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class 'org.h2.Driver' for connect URL 'jdbc:db2://localhost:50000/DTH3_E:currentSchema=DFP_V115'
->> 303 | innerRun in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   138 | run      in java.util.concurrent.FutureTask
|   886 | runTask  in java.util.concurrent.ThreadPoolExecutor$Worker
|   908 | run      in     ''
^   662 | run . .  in java.lang.Thread
Caused by BeanCreationException: Error creating bean with name 'dialectDetector': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class 'org.h2.Driver' for connect URL 'jdbc:db2://localhost:50000/DTH3_E:currentSchema=DFP_V115'
->> 303 | innerRun in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   138 | run      in java.util.concurrent.FutureTask
|   886 | runTask  in java.util.concurrent.ThreadPoolExecutor$Worker
|   908 | run      in     ''
^   662 | run . .  in java.lang.Thread
Caused by MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class 'org.h2.Driver' for connect URL 'jdbc:db2://localhost:50000/DTH3_E:currentSchema=DFP_V115'
->> 303 | innerRun in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   138 | run      in java.util.concurrent.FutureTask
|   886 | runTask  in java.util.concurrent.ThreadPoolExecutor$Worker
|   908 | run      in     ''
^   662 | run . .  in java.lang.Thread
Caused by SQLNestedException: Cannot create JDBC driver of class 'org.h2.Driver' for connect URL 'jdbc:db2://localhost:50000/DTH3_E:currentSchema=DFP_V115'
->> 1452 | createConnectionFactory in org.apache.commons.dbcp.BasicDataSource
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1371 | createDataSource in     ''
|   1044 | getConnection in     ''
|   303 | innerRun in java.util.concurrent.FutureTask$Sync
|   138 | run . .  in java.util.concurrent.FutureTask
|   886 | runTask  in java.util.concurrent.ThreadPoolExecutor$Worker
|   908 | run . .  in     ''
^   662 | run      in java.lang.Thread
Caused by SQLException: No suitable driver
->> 264 | getDriver in java.sql.DriverManager
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1437 | createConnectionFactory in org.apache.commons.dbcp.BasicDataSource
|   1371 | createDataSource in     ''
|   1044 | getConnection in     ''
|   303 | innerRun in java.util.concurrent.FutureTask$Sync
|   138 | run      in java.util.concurrent.FutureTask
|   886 | runTask  in java.util.concurrent.ThreadPoolExecutor$Worker
|   908 | run      in     ''
^   662 | run . .  in java.lang.Thread

在我的datasource.groovy文件中，我更改了以下内容：

environments {
    development {
        dataSource {
            dbCreate = "create-drop" // one of 'create', 'create-drop', 'update', 'validate', ''
            //url = "jdbc:h2:mem:devDb;MVCC=TRUE;LOCK_TIMEOUT=10000"
            url = "jdbc:db2://localhost:50000/DTH3_E:currentSchema=DFP_V115"
        }
    }
....

经过一些研究，我明白这是我的hibernate配置。有人能验证吗？我下一步要去哪里…至少可以说是迷路了

如果想知道，数据库已经启动并运行，我可以使用DbVisualizer连接到它

---

提前感谢您的帮助！如果需要更多详细信息，请询问：）我将尽可能地澄清问题。

从您的例外情况来看，Grails正在尝试使用H2 JDBC驱动程序连接到DB2数据库。尝试在

数据源

声明中指定DB2 Hibernate方言，看看它是否使用正确的驱动程序：

dataSource {
    dialect="org.hibernate.dialect.DB2Dialect"
}

---

还要确保Grails项目中有必要的DB2 jar。

例外情况是，Grails正在尝试使用H2 JDBC驱动程序连接到DB2数据库。尝试在

数据源

声明中指定DB2 Hibernate方言，看看它是否使用正确的驱动程序：

dataSource {
    dialect="org.hibernate.dialect.DB2Dialect"
}

---

还要确保Grails项目中有必要的DB2 jar。

感谢您的提示……遇到了另一个问题，我认为这是因为用户没有对数据库的所有权限。在DB2中，您知道如何向用户授予所有权限吗？我在本地使用DB，所以不管我是否搞砸了什么（用户名：dthdbusr）对不起。我从来没有使用过DB2，因此我无法帮助您获得用户权限。感谢您的提示…遇到了另一个问题，我认为这是因为用户没有对数据库的所有权限。在DB2中，您知道如何向用户授予所有权限吗？我在本地使用DB，所以不管我是否搞砸了什么（用户名：dthdbusr）对不起。我从未使用过DB2，因此我无法帮助您获得用户权限。