使用带Grails的Postgres

Question

有没有人让Grails与Postgres合作？我已经使用了这个教程,一切似乎都有意义,对我来说是正确的.但是,当我'grails run-app'时,我得到了这个错误

Cannot create JDBC driver of class 'org.postgresql.Driver' for connect URL 'jdbc:postgres://10.0.0.21/tribes'
java.sql.SQLException: No suitable driver

我的DataSource文件是

dataSource {
    pooled = true
    driverClassName = "org.postgresql.Driver"
    dialect = org.hibernate.dialect.PostgreSQLDialect
}
hibernate {
    cache.use_second_level_cache=true
    cache.use_query_cache=true
    cache.provider_class='com.opensymphony.oscache.hibernate.OSCacheProvider'
}
// environment specific settings
environments {
    development {
        dataSource {
            dbCreate = "update"
            url = "jdbc:postgres://10.0.0.21:5432/tribes"
            username = "grails"
            password = "grails"
        }   
    }   
    test {
        dataSource {
            dbCreate = "update"
            url = "jdbc:postgres://10.0.0.21:5432/tribes"
            username = "grails"
            password = "grails"
        }   
    }   
    production {
        dataSource {
            dbCreate = "update"
            url = "jdbc:postgres://10.0.0.21:5432/tribes"
            username = "grails"
            password = "grails"
        }   
    }   
}

Answer 1

从FAQ:"[if]你得到一个运行时错误,上面写着'找不到合适的驱动程序',传递给DriverManager.getConnection的URL很可能是格式错误或者不正确".那么你的错了什么？好吧,教程中的示例如下所示:

jdbc:postgresql://localhost:5432/grails

你的看起来像这样:

jdbc:postgres://10.0.0.21:5432/tribes

我猜那些丢失的两封信正在给你带来麻烦.

Answer 2

在BuildConfig.groovy文件中取消注释外部maven 存储库 ,然后添加此行

" 依赖项"部分中的运行时"postgresql:postgresql:9.0-801.jdbc4"