如何获取Grails/Tomcat Webapp的当前工作目录？

Question

我为Tomcat写了一个Grails webapp,它打开并从./data/transactions/foobar上的Berkeley DB中读取.

这个代码在我的Eclipse环境中运行良好.

但是当我将它移动到服务器时,它会吐出这个异常.当我将WAR文件中的Grails部署为服务器上的webapps Web应用程序时,我不确定当前工作目录的位置.

com.sleepycat.je.EnvironmentNotFoundException: (JE 4.1.10) ./data/transactions/Foobar
Home directory: ./data/transactions/Foobar ENV_NOT_FOUND: 
EnvironmentConfig.setAllowCreate is false so environment creation is not permitted, but there are no log files in the environment directory. Environment is invalid and must be closed.

Linux服务器上的我的Tomcat安装目录是/ usr/share/tomcat6.webapps root目录是/ usr/share/tomcat6/webapps.我们的WAR目录安装在名为"bridge"的子目录中.我的Grails应用程序的WAR路径位于/ usr/share/tomcat6/webapps/bridge中

我尝试将./data/transaction/Foobar放在/ usr/share/tomcat6/webapps和/ usr/share/tomcat6/webapps/bridge中,没有运气.

我也尝试将./data/transaction/Foobar放入/ usr/share/tomcat6安装基目录,也没有运气.

以下是我从Tomcat服务器看到的错误:

Error 500: Executing action [index] of controller[com.ecmhp.ecmdatabridge.generators.GenerateEmiDigestsController] 
caused exception: (JE 4.1.10) ./data/transactions/Foobar 
    Home directory: ./data/transactions/Foobar ENV_NOT_FOUND: 
    EnvironmentConfig.setAllowCreate is false so environment creation is not permitted, but there are no log files in the environment directory. Environment is invalid and must be closed.

Servlet:Grails

URI:/bridge/grails/generateEmiDigests/index.dispatch

Exception Message: (JE 4.1.10) ./data/transactions/Foobar 
Home directory: ./data/transactions/Foobar ENV_NOT_FOUND: 
EnvironmentConfig.setAllowCreate is false so environment creation is not permitted, but there are no log files in the environment directory. Environment is invalid and must be closed. 

Caused by: (JE 4.1.10) ./data/transactions/Foobar 
    Home directory: ./data/transactions/Foobar ENV_NOT_FOUND: 
    EnvironmentConfig.setAllowCreate is false so environment creation is not permitted, but there are no log files in the environment directory. Environment is invalid and must be closed.

知道我如何设置我的Tomcat WAR的当前工作目录,以便它找到Berkeley DB ./data/transaction文件？或任何想法,我可以找到当前的工作目录是我的Grails应用程序启动？

Answer 1

如果您可以获取'grailsApplication'bean,它可以在Grails框架的不同部分自动注入,您可以尝试:

grailsApplication.mainContext.servletContext.getRealPath('/data/transactions/foobar')

Answer 2

如果你安装了 grails 的控制台插件，你可以运行

new File( 'test.html' ).absolutePath

对于我们的应用程序，这将返回 /data/opt/tomcat/5.5/，所以我想您需要将目录放入 usr/share/tomcat6/data/transactions 中