PHPYiigii自动生成的模块代码无法执行,报错：InternalServerErrorinclude(Controller.php)

使用PHP的Yii框架的gii自动代码生成工具，可以为我们生成控制器、数据库操作、表单、模型和模块代码，在使用模块代码生成器生成模块代码后，模块却无法执行，不知道大家是否也遇到过该问题。首先，使用gii自动代码生成工具生成module代码，代码会自动生成在项目工程中：使用“Module Generator”生成模块代码后，会自动将生成的模块代码嵌入项目工程中，如下：代码生成后，运行该模块，报错：意思是找不到Controller.php文件，那什么地方使用了该文件呢？在自动生成的模板文件中，controllers文件夹下的DefaultController.php文件继承了Controller类，导致该错误产生：phpview plaincopyprint?1. render(index);8. 9. 真奇怪，gii自动生成的代码，居然找不到Yii framework的系统文件。那为什么在创建Yii工程时，默认生成的controller.php文件不会报这个错误呢？因为该文件继承的是CController类，而不是Controller类。而且，在index.php中，还添加了yii.php和main.php文件的引用。比如，在Yii提供的实例代码Hangman中，自动生成的GameController.php，部分代码如下：phpview plaincopyprint?1. classGameControllerextendsCController2. 3. /*4. *varstringsetsthedefaultactiontobeplay5. */6. public$defaultAction=play;它继承了CController类，而不是Controller类。为什么继承了CController类不会报错，而继承了Controller类就会报错呢？还得从Yii的核心类自动加载机制说起，一般来说，创建好Yii工程后，会生成一个index.php文件，文件内容大概如下：phpview plaincopyprint?1. run();通常，我们会把yii框架的framework文件夹放置在项目工程的protected文件夹下，见上面的工程目录图。这时我们要修改一下$yii的目录为：phpview plaincopyprint?1. $yii=dirname(_FILE_)./protected/framework/yii.php;为什么要加载这个yii.php文件呢，因为它是Yii框架的起始执行文件，文件内容如下：phpview plaincopyprint?1. ?php2. /*3. *Yiibootstrapfile.4. *5. *authorQiangXue6. *link/7. *copyright2008-2013YiiSoftwareLLC8. *license/license/9. *packagesystem10. *since1.011. */12. 13. require(dirname(_FILE_)./YiiBase.php);14. 15. /*16. *Yiiisahelperclassservingcommonframeworkfunctionalities.17. *18. *ItencapsulateslinkYiiBasewhichprovidestheactualimplementation.19. *BywritingyourownYiiclass,youcancustomizesomefunctionalitiesofYiiBase.20. *21. *authorQiangXue22. *packagesystem23. *since1.024. */25. classYiiextendsYiiBase26. 27. 注意，yii.php中的：phpview plaincopyprint?1. require(dirname(_FILE_)./YiiBase.php);加载YiiBase.php文件，关键就在该文件中，查阅一下该文件代码，我们只看关键的几处，如下是定义Yii框架的目录位置：phpview plaincopyprint?1. /*2. *DefinestheYiiframeworkinstallationpath.3. */4. defined(YII_PATH)ordefine(YII_PATH,dirname(_FILE_);5. /*6. *DefinestheZiilibraryinstallationpath.7. */8. defined(YII_ZII_PATH)ordefine(YII_ZII_PATH,YII_PATH.DIRECTORY_SEPARATOR.zii);一旦我们在index.php添加了yii.php的引用，Yii框架本身就知道了它在文件系统中的具体位置。既然Yii框架已经知道了自己的位置，为什么还会出现找不到框架文件的情况呢？这是因为Yii是一个高效框架，体现在它的懒加载（lazy load）模式，即，引用的文件只有在使用到时才会加载，未使用到不加载。但是如果什么都不加载，似乎框架要运行不起来吧。所以，为了提高Yii框架的运行效率，它使用了一种核心类自动加载的机制，即最常用、最核心的框架文件，在Yii框架运行时先加载上来。那么，核心类有哪些呢？在YiiBase.php文件中有定义：phpview plaincopyprint?1. /*2. *vararrayclassmapforcoreYiiclasses.3. *NOTE,DONOTMODIFYTHISARRAYMANUALLY.IFYOUCHANGEORADDSOMECORECLASSES,4. *PLEASERUNbuildautoloadCOMMANDTOUPDATETHISARRAY.5. */6. privatestatic$_coreClasses=array(7. 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CStackIterator=/collections/CStackIterator.php,50. CTypedList=/collections/CTypedList.php,51. CTypedMap=/collections/CTypedMap.php,52. CConsoleApplication=/console/CConsoleApplication.php,53. CConsoleCommand=/console/CConsoleCommand.php,54. CConsoleCommandBehavior=/console/CConsoleCommandBehavior.php,55. CConsoleCommandEvent=/console/CConsoleCommandEvent.php,56. CConsoleCommandRunner=/console/CConsoleCommandRunner.php,57. CHelpCommand=/console/CHelpCommand.php,58. CDbCommand=/db/CDbCommand.php,59. CDbConnection=/db/CDbConnection.php,60. CDbDataReader=/db/CDbDataReader.php,61. CDbException=/db/CDbException.php,62. CDbMigration=/db/CDbMigration.php,63. CDbTransaction=/db/CDbTransaction.php,64. CActiveFinder=/db/ar/CActiveFinder.php,65. CActiveRecord=/db/ar/CActiveRecord.php,66. CActiveRecordBehavior=/db/ar/CActiveRecordBehavior.php,67. CDbColumnSchema=/db/schema/CDbColumnSchema.php,68. CDbCommandBuilder=/db/schema/CDbCommandBuilder.php,69. CDbCriteria=/db/schema/CDbCriteria.php,70. 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CUniqueValidator=/validators/CUniqueValidator.php,146. CUnsafeValidator=/validators/CUnsafeValidator.php,147. CUrlValidator=/validators/CUrlValidator.php,148. CValidator=/validators/CValidator.php,149. CActiveDataProvider=/web/CActiveDataProvider.php,150. CArrayDataProvider=/web/CArrayDataProvider.php,151. CAssetManager=/web/CAssetManager.php,152. CBaseController=/web/CBaseController.php,153. CCacheHttpSession=/web/CCacheHttpSession.php,154. CClientScript=/web/CClientScript.php,155. CController=/web/CController.php,156. CDataProvider=/web/CDataProvider.php,157. CDataProviderIterator=/web/CDataProviderIterator.php,158. CDbHttpSession=/web/CDbHttpSession.php,159. CExtController=/web/CExtController.php,160. CFormModel=/web/CFormModel.php,161. CHttpCookie=/web/CHttpCookie.php,162. CHttpRequest=/web/CHttpRequest.php,163. CHttpSession=/web/CHttpSession.php,164. CHttpSessionIterator=/web/CHttpSessionIterator.php,165. COutputEvent=/web/COutputEvent.php,166. CPagination=/web/CPagination.php,167. CSort=/web/CSort.php,168. CSqlDataProvider=/web/CSqlDataProvider.php,169. CTheme=/web/CTheme.php,170. CThemeManager=/web/CThemeManager.php,171. CUploadedFile=/web/CUploadedFile.php,172. CUrlManager=/web/CUrlManager.php,173. CWebApplication=/web/CWebApplication.php,174. CWebModule=/web/CWebModule.php,175. CWidgetFactory=/web/CWidgetFactory.php,176. CAction=/web/actions/CAction.php,177. CInlineAction=/web/actions/CInlineAction.php,178. CViewAction=/web/actions/CViewAction.php,179. CAccessControlFilter=/web/auth/CAccessControlFilter.php,180. CAuthAssignment=/web/auth/CAuthAssignment.php,181. CAuthItem=/web/auth/CAuthItem.php,182. CAuthManager=/web/auth/CAuthManager.php,183. CBaseUserIdentity=/web/auth/CBaseUserIdentity.php,184. CDbAuthManager=/web/auth/CDbAuthManager.php,185. CPhpAuthManager=/web/auth/CPhpAuthManager.php,186. CUserIdentity=/web/auth/CUserIdentity.php,187. CWebUser=/web/auth/CWebUser.php,188. CFilter=/web/filters/CFilter.php,189. 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CActiveForm=/web/widgets/CActiveForm.php,209. CAutoComplete=/web/widgets/CAutoComplete.php,210. CCl