在Grails中使用Firebird数据库的步骤

Question

我正在尝试将Grails应用程序连接到Firebird数据库.

我在用:

• Grails 2.2.1
• JDK 1.7
• Firebird 2.5.2
• Jaybird 2.2.2

到目前为止,这就是我所做的:

• 我从http://www.firebirdsql.org/en/jdbc-driver/下载了Jaybird-2.2.2JDK_1.7.zip
• 我解压缩此文件并将jaybird-2.2.2.jar复制到我的应用程序的lib文件夹中.
• 在BuildConfig.groovy中,我添加runtime "org.firebirdsql.jdbc:jaybird:2.2.2"到依赖项部分.
• 我编辑了DataSource.groovy,详情如下.

dataSource部分:

dataSource {
    pooled = false
    driverClassName = "org.firebirdsql.jdbc.FBDriver"
    dialect = "org.hibernate.dialect.FirebirdDialect"
    username = "SYSDBA"
    password = "masterkey"
}

休眠部分:

hibernate {
    cache.use_second_level_cache = true
    cache.use_query_cache = true
    cache.provider_class = 'org.firebirdsql.pool.FBSimpleDataSource'
}

(我也有cache.region.factory_class = 'net.sf.ehcache.hibernate.EhCacheRegionFactory和cache.provider_class = 'com.opensymphony.oscache.hibernate.OSCacheProvider'在分开的场合上面的部分,但也作出的任何差异).

运行我的Grails应用程序时,启动失败并出现一个巨大的错误,归结为以下消息:

java.lang.IllegalStateException: Could not load JDBC driver class [org.firebirdsql.jdbc.FBDriver]

我已经远程搜索了网络,但我无法在任何地方找到有效的Grails/Firebird配置示例.有一个修复浮动,涉及复制minij2ee.jar,但这是一个不同的错误消息.此外,人们建议清空.grails文件夹 - 我试过这个,但无济于事.

有人可以建议,我怎样才能让Grails与Firebird合作？

---

这是完整的例外,虽然在启动期间似乎重复了几次:

->> 303 | innerRun in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|   138 | run      in java.util.concurrent.FutureTask
|   886 | runTask  in java.util.concurrent.ThreadPoolExecutor$Worker
|   908 | run      in     ''
^   662 | run . .  in java.lang.Thread

Caused by BeanCreationException: Error creating bean with name 'sessionFactory':
 Cannot resolve reference to bean 'dataSource' while setting bean property 'data
Source'; nested exception is org.springframework.beans.factory.BeanCreationExcep
tion: Error creating bean with name 'dataSource': Cannot resolve reference to be
an 'dataSourceUnproxied' while setting constructor argument; nested exception is
 org.springframework.beans.factory.BeanCreationException: Error creating bean wi
th name 'dataSourceUnproxied': Error setting property values; nested exception i
s org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessE
xceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException:
Property 'driverClassName' threw exception; nested exception is java.lang.Illega
lStateException: Could not load JDBC driver class [org.firebirdsql.jdbc.FBDriver
]

使用--verbose运行--stacktrace:

| Error Error running script --stacktrace --verbose: Cannot invoke method findAl
l() on null object
java.lang.NullPointerException: Cannot invoke method findAll() on null object
        at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:7
7)
        at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaC
lassSite.java:45)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSi
teArray.java:45)
        at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.j
ava:32)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSi
teArray.java:45)
        at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMeta
MethodSite.java:55)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCa
llSite.java:116)
        at org.codehaus.groovy.grails.cli.ScriptNameResolver.resolvesTo(ScriptNa
meResolver.groovy:30)
        at org.codehaus.groovy.grails.cli.GrailsScriptRunner.getPotentialScripts
(GrailsScriptRunner.java:489)
        at org.codehaus.groovy.grails.cli.GrailsScriptRunner.executeScriptWithCa
ching(GrailsScriptRunner.java:429)
        at org.codehaus.groovy.grails.cli.GrailsScriptRunner.executeScriptWithCa
ching(GrailsScriptRunner.java:416)
        at org.codehaus.groovy.grails.cli.GrailsScriptRunner$executeScriptWithCa
ching.call(Unknown Source)
        at org.codehaus.groovy.grails.cli.interactive.InteractiveMode.parseAndEx
ecute(InteractiveMode.groovy:280)
        at org.codehaus.groovy.grails.cli.interactive.InteractiveMode$parseAndEx
ecute.callCurrent(Unknown Source)
        at org.codehaus.groovy.grails.cli.interactive.InteractiveMode.run(Intera
ctiveMode.groovy:133)
        at org.codehaus.groovy.grails.cli.interactive.InteractiveMode$run.call(U
nknown Source)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSi
teArray.java:45)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCa
llSite.java:108)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCa
llSite.java:112)
        at RunApp$_run_closure7_closure11.doCall(RunApp:127)
        at RunApp$_run_closure7_closure11.doCall(RunApp)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(Refl
ectiveInterceptor.java:1243)
        at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:
90)
        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1082)
        at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1106)

        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:906)
        at groovy.lang.Closure.call(Closure.java:412)
        at groovy.lang.Closure.call(Closure.java:406)
        at groovy.lang.Closure.run(Closure.java:490)
        at java.lang.Thread.run(Thread.java:662)
| Error Error running script --stacktrace --verbose: Cannot invoke method findAl
l() on null object

---

这是我BuildConfig.groovy文件中的存储库块:

repositories {
    inherits true // Whether to inherit repository definitions from plugins

    grailsPlugins()
    grailsHome()
    grailsCentral()

    mavenLocal()
    mavenCentral()

    // uncomment these (or add new ones) to enable remote dependency resolution from public Maven repositories
    mavenRepo "http://snapshots.repository.codehaus.org"
    mavenRepo "http://repository.codehaus.org"
    mavenRepo "http://download.java.net/maven/2/"
    mavenRepo "http://repository.jboss.com/maven2/"
}

Answer 1

您可能错过了Jaybird所需的依赖项.您需要在类路径中包含connector-api-1.5.jar(在libJaybird发行版的文件夹中).另一种方法是使用jaybird-full-2.2.2.jar(包括类connector-api-1.5.jar).

编辑

出于某种好奇心,我安装了grails并试了一下.我最初也有类似的错误(使用grails console),堆栈跟踪显示我java.lang.NoClassDefFoundError: javax/resource/ResourceException.它看起来像grails - 与文档相反 - 不检索传递依赖(这是一个wong,参见编辑2).

在我明确添加运行时依赖之后'javax.resource:connector-api:1.5',例如:

dependencies {
    // specify dependencies here under either 'build', 'compile', 'runtime', 'test' or 'provided' scopes e.g.

    // runtime 'mysql:mysql-connector-java:5.1.22'
    runtime 'org.firebirdsql.jdbc:jaybird-jdk17:2.2.2',
            'javax.resource:connector-api:1.5'
}

通过这种额外的依赖,它起作用 由于connector-api通常由应用程序服务器提供,因此最好将其指定为provided(您可能需要检查实际的部署环境).

如果你需要支持检索生成的密钥(或Gorm可能需要它),那么我建议你也添加'org.antlr:antlr-runtime:3.4'(作为runtime依赖).

编辑2

经过一些额外的测试后,看起来首先将下载的jaybird库安装到其中lib,然后声明依赖项将使常春藤创建对该本地库的依赖,而不是从maven中检索它.从lib文件夹中删除jaybird库并org.firebirdsql.jdbc从我的常春藤缓存中删除该文件夹后,它正确地从Maven下载了它,包括connector-api依赖项.