1

我是 BPM 的新手，我尝试在我自己的 Grails 应用程序上安装 Activiti。

我已经安装了插件和安全插件（Spring security 和 Activiti-spring security），以及 Vacation Request 应用程序。

来自：http ://code.google.com/p/grails-activiti-plugin/wiki/VacationRequestSampleApplication

我登录了，当我点击开始链接时，我收到了这个错误：

java.lang.NullPointerException: Cannot get property 'id' on null object
    at ActivitiGrailsPlugin$_addActivitiMethods_closure7_closure29.doCall(ActivitiGrailsPlugin.groovy:130)
    at ActivitiGrailsPlugin$_addActivitiMethods_closure7.doCall(ActivitiGrailsPlugin.groovy:126)
    at vacationRequest.VacationRequestController$_closure2.doCall(VacationRequestController.groovy:36)
    at vacationRequest.VacationRequestController$_closure2.doCall(VacationRequestController.groovy)
    at java.lang.Thread.run(Thread.java:662)
4

2 回答 2

2

我已按以下顺序安装插件

  1. 活动 5.8.2
  2. spring-security-core-1.2.7.2
  3. activiti-spring-security-0.4.6
  4. 安装假期请求示例应用程序

我得到

| Error 2012-03-26 11:07:49,216 [http-bio-8080-exec-10] ERROR errors.GrailsExceptionResolver  - NullPointerException occurred when processing request: [GET] /test3/vacationRequest/start 
Cannot get property 'id' on null object. Stacktrace follows:
Message: Cannot get property 'id' on null object
    Line | Method
->>  129 | doCall    in ActivitiGrailsPlugin$_addActivitiMethods_closure7_closure29
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    125 | doCall    in ActivitiGrailsPlugin$_addActivitiMethods_closure7
|     36 | doCall .  in vacationRequest.VacationRequestController$_closure2
|   1110 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    603 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run       in java.lang.Thread

它可以来自我正在使用的插件版本吗？

于 2012-03-26T06:34:44.110 回答
0

我没有遇到你报告的问题。

我使用以下命令创建项目：

grails create-app a581
grails install-plugin activiti
grails activiti-quickstart
grails install-vacation-request-sampleapp

我猜你可能会错过一些步骤。您可以尝试在您的工作站上运行我创建的项目，网址为http://grails-activiti-plugin.googlecode.com/files/a581.zip

于 2011-12-29T02:46:46.637 回答