Question

我有一个grails应用程序，我正在尝试部署到Tomcat上。我曾经在hsql上开发并希望使用mysql进行生产。但是，当我通过运行

来建立战争

grails prod war demo.war

并在tomcat / webapps目录中部署创建的war，我收到以下错误

INFO: Deploying web application archive demo.war
2011-11-29 17:30:03,193 [Thread-2] INFO  cfg.Environment  - Hibernate 3.3.1.GA
2011-11-29 17:30:03,224 [Thread-2] INFO  cfg.Environment  - hibernate.properties not found
2011-11-29 17:30:03,240 [Thread-2] INFO  cfg.Environment  - Bytecode provider name : javassist
2011-11-29 17:30:03,251 [Thread-2] INFO  cfg.Environment  - using JDK 1.4 java.sql.Timestamp handling
2011-11-29 17:31:25,451 [Thread-2] ERROR context.ContextLoader  - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'messageSource': 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.hsqldb.jdbcDriver' for connect URL 'jdbc:mysql://localhost:3306/demoapp?autoreconnect=true'
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)

令人费解的是，我已经完全从Datasource.groovy文件中删除了hsql依赖项。以下是我的Datasource.groovy现在的样子。

dataSource {
    pooled = true
    driver.name = "com.mysql.jdbc.Driver"   
    username = "root"
    password = "root"
}
hibernate {
    cache.use_second_level_cache = true
    cache.use_query_cache = true
    cache.provider_class = 'net.sf.ehcache.hibernate.EhCacheProvider'
}
// environment specific settings
environments {
    development {
        dataSource {
            dbCreate = "create-drop" // one of 'create', 'create-drop','update'
            pooled = true
            driver.name = "com.mysql.jdbc.Driver"
            url = "jdbc:mysql://localhost/demoapp_dev?autoreconnect=true"
            username = "root"
            password = ""
        }
    }
    test {
        dataSource {
            pooled = true
            driver.name = "com.mysql.jdbc.Driver"
            dbCreate = "update"
            url = "jdbc:mysql://localhost/demoapp_test?autoreconnect=true"
            username = "root"
            password = ""
        }
    }
    production {
        dataSource {
            pooled = true
            driver.name = "com.mysql.jdbc.Driver"
            dbCreate = "update"
            url = "jdbc:mysql://localhost/demoapp?autoreconnect=true"
            username = "root"
            password = ""
        }
    }
}

如何解决这个问题？任何帮助表示赞赏。

Answer 1

尝试使用driverClassName代替driver.name来定义DataSource驱动程序。

Answer 2

当您在类路径中没有MySQL驱动程序时，会发生这种情况没有driverClassName，根据schmolly159的回答。

~~确保mysql-connector-java-x.x.xx.jar位于lib目录中，或将其声明为BuildConfig.groovy~~ 中的依赖项。

Tomcat上的Grails war部署要求使用hsql驱动程序而不是mysql

2 个答案: