Yii使用DbTarget实现日志功能的示例代码

一：在配置文件的log组件中配置dbtarget

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'log' => [   'tracelevel' => yii_debug ? 3 : 0,   'targets' => [    [     'class' => 'yii\log\filetarget' ,     'levels' => [ 'error' , 'warning' ],    ],    'test' => [     'class' => 'yii\log\dbtarget' , //datarget类     'logtable' => '{{%test_log}}' , //日志表     'levels' => [ 'error' , 'info' , 'warning' ], //日志等级    ],   ], ],

二：生成日志表

在项目目录下执行如下命令生成日志表

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1	php yii migrate --migrationpath=@yii/log/migrations/

三：使用日志

在需要使用日志的地方使用

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1	yii::info()

四：自定义dbtarget日志

1：首先创建一个自定义的日志表

(1)在项目目录下执行

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1	php yii migrate/create create_test_log

(2)：在创建的migrate文件下编写创建数据库的迁移脚本

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<?php use yii\db\migration; /**   * class m200720_091126_create_test_log   */ class m200720_091126_create_test_log extends migration {   /**    * {@inheritdoc}    */   public function safeup()   {    $this ->createtable( '{{%test_log}}' , [     'id' => $this ->bigprimarykey(),     'level' => $this ->integer()->notnull()->comment( '日志等级' ),     'category' => $this ->string(100)->notnull()->comment( '分类名称' ),     'prefix' => $this ->text(),     'route' => $this ->string(100)->notnull()->comment( '路由' ),     'method' => $this ->string(20)->notnull()->comment( '请求方式' ),     'app' => $this ->string(20)->comment( '请求应用' ),     'module' => $this ->string(20)->comment( '请求模块' ),     'request' => $this ->text()->comment( '请求参数' ),     'status' => $this ->string(10)->notnull()->comment( '状态码' ),     'message' => $this ->text()->comment( '日志内容' ),     'request_at' => $this ->double()->notnull()->comment( '请求时间' ),     'ip' => $this ->string(63)->comment( '请求ip' ),    ], 'character set utf8mb4 collate utf8mb4_unicode_ci engine=innodb comment=\'请求日志表\'' );    //增加索引    $this ->createindex( 'idx_log_level' , '{{%test_log}}' , 'level' );    $this ->createindex( 'idx_log_category' , '{{%test_log}}' , 'category' );    $this ->createindex( 'idx_log_route' , '{{%test_log}}' , 'route' );    $this ->createindex( 'idx_log_method' , '{{%test_log}}' , 'method' );    $this ->createindex( 'idx_log_status' , '{{%test_log}}' , 'status' );   }   /**    * @inheritdoc    */   public function safedown()   {    $this ->droptable( '{{%test_log}}' );   } }

(3)：执行如下命令生成dbtarget日志表

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1	php yii migrate

2：编写一个dbtarget类来继承yiilogdbtarget类

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<?php namespace app\components; use yii; use yii\helpers\vardumper; use yii\log\logruntimeexception; use yii\web\httpexception; use yii\web\request; /**   * dbtarget stores log messages in a database table.   *   * @see yii\log\dbtarget   *   * @author wangjian   * @since 1.0   */ class dbtarget extends \yii\log\dbtarget {   /**    * @inheritdoc    */   public $categories = [    'application' ,    'yii\web\httpexception:*' ,   ];   /**    * @inheritdoc    */   public $except = [    // 'yii\web\httpexception:404',   ];   /**    * @inheritdoc    */   public $logvars = [ '_get' , '_post' ];   /**    * @var string 用户组件id    */   public $usercomponentid = 'user' ;   /**    * @inheritdoc    */   public function collect( $messages , $final )   {    $this ->messages = array_merge ( $this ->messages, static ::filtermessages( $messages , $this ->getlevels(), $this ->categories, $this ->except));    $count = count ( $this ->messages);    if ( $count > 0 && ( $final || $this ->exportinterval > 0 && $count >= $this ->exportinterval)) {     $oldexportinterval = $this ->exportinterval;     $this ->exportinterval = 0;     $this ->export();     $this ->exportinterval = $oldexportinterval ;     $this ->messages = [];    }   }   /**    * @inheritdoc    */   public function getmessageprefix( $message )   {    if ( $this ->prefix !== null) {     return call_user_func( $this ->prefix, $message );    }    if (yii:: $app === null) {     return '' ;    }    $ip = $this ->getip();    $ip = empty ( $ip ) ? '-' : $ip ;    return "[$ip]" ;   }   /**    * @inheritdoc    */   public function export()   {    if ( $this ->db->gettransaction()) {     $this ->db = clone $this ->db;    }    $tablename = $this ->db->quotetablename( $this ->logtable);    $sql = "insert into $tablename ([[level]], [[category]], [[prefix]], [[route]], [[method]], [[app]], [[module]], [[request]], [[status]], [[message]], [[request_at]], [[ip]])      values (:level, :category, :prefix, :route, :method, :app, :module, :request, :status, :message, :request_at, :ip)";    $command = $this ->db->createcommand( $sql );    $request = yii:: $app ->getrequest();    list( $route , $params ) = $request ->resolve();    $method = $request ->getmethod();    $module = yii:: $app ->controller->module->id;    $route = str_replace ( "{$module}/" , '' , $route );    foreach ( $this ->messages as $message ) {     list( $text , $level , $category , $timestamp ) = $message ;     $statuscode = 200;     if (! is_string ( $text )) {      if ( $text instanceof \throwable || $text instanceof \exception) {       $statuscode = $text instanceof httpexception ? $text ->statuscode : 500;       $text = $text ->getmessage();      } else {       $text = vardumper::export( $text );      }     }     if ( $command ->bindvalues([       ':level' => $level ,       ':category' => $category ,       ':prefix' => $this ->getmessageprefix( $message ),       ':route' => $route ,       ':method' => $method ,       ':app' => yii:: $app ->id,       ':module' => $module ,       ':request' => $this ->getcontextmessage(),       ':status' => $statuscode ,       ':message' => $text ,       ':request_at' => $timestamp ,       ':ip' => $this ->getip(),      ])->execute() > 0) {      continue ;     }     throw new logruntimeexception( 'unable to export log through database!' );    }   }   /**    * 获取当前ip    */   protected function getip()   {    $request = yii:: $app ->getrequest();    return $request instanceof request ? $request ->getuserip() : '' ;   } }

3：在配置文件中将yiilogdbtarget类改成我们自定义的类

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'log' => [   'tracelevel' => yii_debug ? 3 : 0,   'targets' => [    [     'class' => 'yii\log\filetarget' ,     'levels' => [ 'error' , 'warning' ],    ],    'test' => [     'class' => 'app\components\dbtarget' ,     'logtable' => '{{%test_log}}' ,     'levels' => [ 'error' , 'info' , 'warning' ],    ],   ], ],

4：使用dbtarget日志

同样的使用yii::info来记录日志

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原文链接：https://segmentfault.com/a/1190000023313633