Question

我得到 ClassNotFoundException ：oracle.jdbc.OracleDriver任何时候我做grails run-app而没有事先做过--refresh-dependencies（我的项目中有oracle驱动.jar / LIB）。

我见过类似问题here和其他地方，答案似乎总是运行--refresh-depdencies

但是，我发现在执行--refresh-dependencies之后，这样做只能运行一次。随后我运行app时，我再次得到 ClassNotFoundException ：oracle.jdbc.OracleDriver，直到我再次运行--refresh-dependencies。通过运行--refresh-dependencies每次我要运行app我仍然可以运行，但它非常烦人。

我正在运行grails 2.3.0。

grails输出没有在run-app之前完成--refresh-dependencies：

| Loading Grails 2.3.0
| Configuring classpath.
| Environment set to development.....
| Packaging Grails application.....
| Running Grails application
Configuring Spring Security Core ...
... finished configuring Spring Security Core
Configuring Spring Security LDAP ...
... finished configuring Spring Security LDAP
Configuring Spring Security CAS ...
... finished configuring Spring Security CAS
| Error 2014-01-14 15:15:14,235 [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 '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: oracle.jdbc.OracleDriver
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 java.sql.SQLException: oracle.jdbc.OracleDriver
    Line | Method
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    615 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | 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 java.sql.SQLException: oracle.jdbc.OracleDriver
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    615 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | 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 java.sql.SQLException: oracle.jdbc.OracleDriver
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    615 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | 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 java.sql.SQLException: oracle.jdbc.OracleDriver
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    615 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | 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 java.sql.SQLException: oracle.jdbc.OracleDriver
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    615 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run . . . in java.lang.Thread
Caused by MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is java.sql.SQLException: oracle.jdbc.OracleDriver
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    615 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run . . . in java.lang.Thread
Caused by SQLException: oracle.jdbc.OracleDriver
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    615 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run . . . in java.lang.Thread
Caused by ClassNotFoundException: oracle.jdbc.OracleDriver
->>  175 | findClass in org.codehaus.groovy.tools.RootLoader
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    423 | loadClass in java.lang.ClassLoader
|    147 | loadClass in org.codehaus.groovy.tools.RootLoader
|    356 | loadClass in java.lang.ClassLoader
|    266 | forName . in java.lang.Class
|    334 | innerRun  in java.util.concurrent.FutureTask$Sync
|    166 | run . . . in java.util.concurrent.FutureTask
|   1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    615 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker

^    722 | run       in java.lang.Thread

并且在做了--refresh-dependencies之后：

| Loading Grails 2.3.0
| Configuring classpath.
| Environment set to development.....
| Packaging Grails application.....
| Running Grails application
Configuring Spring Security Core ...
... finished configuring Spring Security Core
Configuring Spring Security LDAP ...
... finished configuring Spring Security LDAP
Configuring Spring Security CAS ...
... finished configuring Spring Security CAS
| Server running. Browse to http://localhost:8080/loggity-rest

Answer 1

我不认为这是一个＆＃34;答案＆＃34;对我自己的问题，但我在这里发布它作为一个可能的解决方案解决方案，以防其他人遇到这个问题。

通过BuildConfig.groovy而不是使用/ lib文件夹，我可以通过拉取我的oracle驱动程序来解决这个问题。

我不认为这是一个解决方案的原因是，为了做到这一点，你需要一个存储库，其中可以找到oracle驱动程序工件，它不在任何公共存储库中，也不允许由于＆＃34;吝啬＆＃34;在oracle方面。

我的公司有一个我能够使用的私有存储库，由我们的CI服务器共享，这个解决方案只适用于那些可以访问某种私有存储库的人。我在BuildConfig.groovy中添加的内容几乎是您所期望的：

runtime "com.oracle:ojdbc6:11.2.0.1.0"

由于没有可用于oracle驱动程序jar的存储库而无法使用此解决方案的人仍然需要解决使用/ lib时出现的问题。

Answer 2

我有类似的问题，有一次它会运行app罚款，但一旦我重新启动它会抛出“池连接”异常。

在BuildConfig.groovy中添加以下行修复了我的问题。不知道为什么它开始缺失。

grails.project.dependency.resolver = "maven" // or ivy

Answer 3

这似乎是新的Aether依赖关系管理器的问题，默认情况下在2.3中使用。它比Ivy更快，并且总体上比Ivy更好，但是有一些不受支持的常春藤功能。

我能够通过在BuildConfig.groovy中将Aether更改为Ivy来实现这一目标：

grails.project.dependency.resolver = "ivy"

Answer 4

更改cat: invalid option -- '3' Try `cat --help' for more information.中的行：

BuildConfig

到此（省略com。）：

runtime "com.oracle:ojdbc6:11.2.0.1.0"

为我工作。

Grails无法加载oracle.jdbc.driver.OracleDriver和--refresh-dependencies不起作用

4 个答案: