編譯Grails項目時無法加載JDBC驅動程序類'net.sourceforge.jtds.jdbc.Driver'

Question

這是我的第一篇文章，所以要溫柔！ :)

我已經建立了一個grails項目（在grails上也是新手），並且試圖將它連接到SQL 2008數據庫，我已經將jtds-1.3.0.jar添加到了lib文件夾中，並且我的構建路徑，然後我改變了我的DataSource.groovy文件中讀取，如下所示： -

dataSource { 
    pooled = true 
    driverClassName = "net.sourceforge.jtds.jdbc.Driver" 
    dialect = "org.hibernate.dialect.SQLServerDialect" 
    } 

hibernate { 
    cache.use_second_level_cache = true 
    cache.use_query_cache = false 
    cache.region.factory_class = 'net.sf.ehcache.hibernate.EhCacheRegionFactory' 
} 


// environment specific settings 
    development { 
     dataSource { 
      dbCreate = "update" 
     url= "jdbc:jtds:sqlserver://TestServer:1433;databaseName=TestTable" 
      username = "test" 
      password = "test" 
     // logSql=true 
     } 
    } 

麻煩的是，當我嘗試編譯我得到一個巨大的錯誤，內容如下，我缺少什麼？我GOOGLE了一下，但找不到一個明顯的解決方案...：S

| Error 2013-03-08 12:44:33,451 [localhost-startStop-1] ERROR context.GrailsContextLoader - Error executing bootstraps: 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 org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'net.sourceforge.jtds.jdbc.Driver' 
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 org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'net.sourceforge.jtds.jdbc.Driver' 

Answer 1

我以前也有類似的問題。

我已經將JTDS的版本更改爲1.2.6，並且一切正常。

順便說一句 - 你不需要手動添加jar。你只需要以下添加到您的BuildConfig.groovy（相關內容部分）：

runtime 'net.sourceforge.jtds:jtds:1.2.6'