改进isBreak方法判断

library/think/db/Connection.php

@@ -780,11 +780,31 @@ abstract class Connection
     /**
      * 是否断线
      * @access protected
-     * @param \PDOException  $e 异常
+     * @param \PDOException  $e 异常对象
      * @return bool
      */
     protected function isBreak($e)
     {
+        $info = [
+            'server has gone away',
+            'no connection to the server',
+            'Lost connection',
+            'is dead or not enabled',
+            'Error while sending',
+            'decryption failed or bad record mac',
+            'server closed the connection unexpectedly',
+            'SSL connection has been closed unexpectedly',
+            'Error writing data to the connection',
+            'Resource deadlock avoided',
+        ];
+
+        $error = $e->getMessage();
+
+        foreach ($info as $msg) {
+            if (false !== stripos($error, $msg)) {
+                return true;
+            }
+        }
         return false;
     }
 

library/think/db/connector/Mysql.php

@@ -130,22 +130,4 @@ class Mysql extends Connection
         return true;
     }
 
-    /**
-     * 是否断线
-     * @access protected
-     * @param \PDOException  $e 异常对象
-     * @return bool
-     */
-    protected function isBreak($e)
-    {
-        $info  = ['server has gone away', 'Error while sending STMT_'];
-        $error = $e->getMessage();
-
-        foreach ($info as $msg) {
-            if (false !== stripos($error, $msg)) {
-                return true;
-            }
-        }
-        return false;
-    }
 }