From 7ea955dcbffabada9117602d4da95914a67c17b4 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Thu, 11 Apr 2013 16:48:41 +0800
Subject: [PATCH] =?UTF-8?q?Log=E7=B1=BB=E6=94=B9=E8=BF=9B?=
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---
 Think/Log.php | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Think/Log.php b/Think/Log.php
index 17506f35..bed37c7d 100644
--- a/Think/Log.php
+++ b/Think/Log.php
@@ -21,8 +21,12 @@ class Log {
     static public function init($config=[]){
         $type   =   isset($config['type'])?$config['type']:'File';
         $class  =   'Think\\Log\\Driver\\'. ucwords($type);
-        unset($config['type']);
-        self::$storage = new $class($config);
+        if(class_exists($class)) {
+            unset($config['type']);
+            self::$storage = new $class($config);
+        }else{
+            throw new \Exception('Log type not exists:'.$type);
+        }
     }
 
     /**
@@ -67,7 +71,7 @@ class Log {
             }
             self::$log = [];
         }
-        self::$storage->write($message,$destination);
+        self::$storage && self::$storage->write($message,$destination);
     }
 
     /**
@@ -79,7 +83,7 @@ class Log {
      * @return void
      */
     static public function write($log,$level,$destination='') {
-        self::$storage->write("{$level}: {$log}",$destination);
+        self::$storage && self::$storage->write("{$level}: {$log}",$destination);
     }
 
 }
\ No newline at end of file