'log' => [
 'traceLevel' => YII_DEBUG "color: #ff0000">二：生成日志表

在项目目录下执行如下命令生成日志表


php yii migrate --migrationPath=@yii/log/migrations/


三：使用日志
在需要使用日志的地方使用


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


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


<"htmlcode">

php yii migrate



2：编写一个DbTarget类来继承yiilogDbTarget类


<"[$ip]";
 }
 /**
  * @inheritdoc
  */
 public function export()
 {
  if ($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 "htmlcode">

'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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