Question

每次修改代码时，我都必须在运行grails clean之前运行grails run-app。如果我不这样做，我会收到这样的消息：

| Error 2014-02-13 16:33:16,774 [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 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource': Cannot resolve reference to bean 'dataSourceUnproxied' while setting bean property 'targetDataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSourceUnproxied': Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'driverClassName' threw exception; nested exception is java.lang.IllegalStateException: Could not load JDBC driver class [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 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource': Cannot resolve reference to bean 'dataSourceUnproxied' while setting bean property 'targetDataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSourceUnproxied': Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'driverClassName' threw exception; nested exception is java.lang.IllegalStateException: Could not load JDBC driver class [oracle.jdbc.OracleDriver]
    Line | Method
->>  262 | run       in java.util.concurrent.FutureTask
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    615 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    744 | run       in java.lang.Thread

这真的很奇怪，因为Grails似乎无法加载Oracle数据库驱动程序......但如果我运行它会加载

grails clean
grails run-app

我正在开发的这个应用程序今天从Grails 2.2.4升级。升级是无用的（直到此）。我所要做的就是更改hibernate和tomcat版本，然后运行grails upgrade; grails clean

任何想法我如何得到它所以我可以修改代码，只需重新使用grails run-app或更好...让重新加载功能工作，所以当我进行代码修改它自动编译文件我只是保存（这在Grails 2.2.4中运行得很好）。

Answer 1

你试过grails -reloading run-app吗？

由于您已经提到过在升级过程中只更改了插件版本，我认为您没有使用分叉模式，默认情况下启用重新加载。

看看Forked Execution and the Reloading Agent。另请注意，{。{1}}命令已在2.3。*。

中弃用

Grails 2.3.5在每次代码更改后都要求“grails clean”

1 个答案: