D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\db\CDbConnection.php(269)
00257: throw new CDbException(Yii::t('yii','CDbConnection.connectionString cannot be empty.'));
00258: try
00259: {
00260: Yii::trace('Opening DB connection','system.db.CDbConnection');
00261: $this->_pdo=$this->createPdoInstance();
00262: $this->initConnection($this->_pdo);
00263: $this->_active=true;
00264: }
00265: catch(PDOException $e)
00266: {
00267: if(YII_DEBUG)
00268: {
00269: throw new CDbException(Yii::t('yii','CDbConnection failed to open the DB connection: {error}',
00270: array('{error}'=>$e->getMessage())));
00271: }
00272: else
00273: {
00274: Yii::log($e->getMessage(),CLogger::LEVEL_ERROR,'exception.CDbException');
00275: throw new CDbException(Yii::t('yii','CDbConnection failed to open the DB connection.'));
00276: }
00277: }
00278: }
00279: }
00280:
00281: /**
#0 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\db\CDbConnection.php(242): CDbConnection->open()
#1 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\db\CDbConnection.php(221): CDbConnection->setActive(true)
#2 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\base\CModule.php(363): CDbConnection->init()
#3 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\base\CApplication.php(391): CModule->getComponent('db')
#4 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\db\ar\CActiveRecord.php(553): CApplication->getDb()
#5 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\db\ar\CActiveRecord.php(2048): CActiveRecord->getDbConnection()
#6 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\db\ar\CActiveRecord.php(353): CActiveRecordMetaData->__construct(Object(Block))
#7 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\protected\models\Block.php(21): CActiveRecord::model('Block')
#8 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\protected\controllers\GuestController.php(10): Block::model()
#9 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\web\actions\CInlineAction.php(32): GuestController->actionIndex()
#10 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\web\CController.php(300): CInlineAction->run()
#11 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\web\CController.php(278): CController->runAction(Object(CInlineAction))
#12 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\web\CController.php(257): CController->runActionWithFilters(Object(CInlineAction), Array)
#13 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\web\CWebApplication.php(324): CController->run('')
#14 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\web\CWebApplication.php(121): CWebApplication->runController('')
#15 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\yii\base\CApplication.php(135): CWebApplication->processRequest()
#16 D:\Inetpub\vhosts\jgdw.tongji.edu.cn\httpdocs\index.php(14): CApplication->run()
#17 {main}