grails在運行grails生成命令時拋出異常

我在本地運行grails 2.4.4。我有以下域類：grails在運行grails生成命令時拋出異常

class MyClass { 

    byte[] posterImage 
    String posterType 
    String posterName 
    static belongsTo = NicheChannel 
    static constraints = { 
     posterImage(nullable: true, maxSize: 16384000 /* 16000k */) 
     posterType(nullable: true) 
    } 
}

當我嘗試運行

grails generate-controller MyClass

或

grails generate-views MyClass

我得到以下異常：

| Domain class not found in grails-app/domain, trying hibernate mapped classes... 
| Error 2016-01-04 04:30:44,365 [main] ERROR pool.ConnectionPool - Unable to create initial connections of pool. 
Message: Driver:[email protected] returned null for URL:jdbc:h2:mem:devDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE 
    Line | Method 
->> 40 | doCall in _GrailsBootstrap$_run_closure2 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
| 64 | doCall in _GrailsBootstrap$_run_closure6 
| 45 | doCall in _GrailsGenerate_groovy$_run_closure1 
^ 40 | doCall in GenerateViews$_run_closure1 
| Error 2016-01-04 04:30:44,400 [main] ERROR pool.ConnectionPool - Unable to create initial connections of pool. 
Message: Driver:[email protected] returned null for URL:jdbc:h2:mem:devDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE 
    Line | Method 
->> 40 | doCall in _GrailsBootstrap$_run_closure2 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
| 64 | doCall in _GrailsBootstrap$_run_closure6 
| 45 | doCall in _GrailsGenerate_groovy$_run_closure1 
^ 40 | doCall in GenerateViews$_run_closure1 
| Error 2016-01-04 04:30:44,431 [main] ERROR pool.ConnectionPool - Unable to create initial connections of pool. 
Message: Driver:[email protected] returned null for URL:jdbc:h2:mem:devDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE 
    Line | Method 
->> 40 | doCall in _GrailsBootstrap$_run_closure2 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
| 64 | doCall in _GrailsBootstrap$_run_closure6 
| 45 | doCall in _GrailsGenerate_groovy$_run_closure1 
^ 40 | doCall in GenerateViews$_run_closure1 
| Error Error executing script GenerateViews: org.springframework.beans.factory.BeanCreationException: 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 java.sql.SQLException: Driver:[email protected] returned null for URL:jdbc:h2:mem:devDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE (Use --stacktrace to see the full trace)

我甚至嘗試

grails generate-all MyClass

我得到同樣的例外。

來源

2016-01-04 Das

'錯誤pool.ConnectionPool - 無法創建初始連接時，您在連接到數據庫面臨的困難pool.'來。請檢查是否一切都在'DataSource.groovy' – Parth

寫得好驗證您的數據庫URL in'URL：JDBC：H2：MEM：devDb; MVCC = TRUE; LOCK_TIMEOUT = 10000; DB_CLOSE_ON_EXIT = FALSE'是正確的。 – shaydel

更新：這讓通過附加軟件包名到MyClass的固定如下

grails generate-controller <packagename>.MyClass

來源

2016-01-04 12:32:12 Das

grails在運行grails生成命令時拋出異常

回答

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