'db'=>array(

            'connectionString' => 'mysql:host=localhost;dbname=test',

            'emulatePrepare' => true,

            'username' => 'root',

            'password' => 'root',

            'charset' => 'utf8',

                      /*

                       * 下面是调试信息，显示执行的数据库操作

                       */

                       'enableProfiling'=>YII_DEBUG,

                      'enableParamLogging'=>YII_DEBUG,

        ),

'log'=>array(

			'class'=>'CLogRouter',

			'routes'=>array(

				array(

					'class'=>'CFileLogRoute',

					'levels'=>'error, warning',

				),

				// uncomment the following to show log messages on web pages

				array(

					'class'=>'CWebLogRoute',

                                        'levels'=>'trace',

                                        'categories'=>'system.db.*',

				),

			),