在 Yii 2.0 中报错：Malformed UTF-8 characters, possibly incorrectly encoded. 的排查分析
1、在 Yii 2.0 中报错：Malformed UTF-8 characters, possibly incorrectly encoded.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | { "name": "Exception", "message": "Malformed UTF-8 characters, possibly incorrectly encoded.", "code": 5, "type": "yii\\base\\InvalidArgumentException", "file": "E:\\wwwroot\\pcs-api-feature-base-3.0\\vendor\\yiisoft\\yii2\\helpers\\BaseJson.php", "line": 133, "stack-trace": [ "#0 E:\\wwwroot\\pcs-api-feature-base-3.0\\vendor\\yiisoft\\yii2\\helpers\\BaseJson.php(67): yii\\helpers\\BaseJson::handleJsonError(5)", "#1 E:\\wwwroot\\pcs-api-feature-base-3.0\\vendor\\yiisoft\\yii2\\web\\JsonResponseFormatter.php(119): yii\\helpers\\BaseJson::encode('SQLSTATE[HY000]...', 320)", "#2 E:\\wwwroot\\pcs-api-feature-base-3.0\\vendor\\yiisoft\\yii2\\web\\JsonResponseFormatter.php(104): yii\\web\\JsonResponseFormatter->formatJson(Object(yii\\web\\Response))", "#3 E:\\wwwroot\\pcs-api-feature-base-3.0\\vendor\\yiisoft\\yii2\\web\\Response.php(1070): yii\\web\\JsonResponseFormatter->format(Object(yii\\web\\Response))", "#4 E:\\wwwroot\\pcs-api-feature-base-3.0\\vendor\\yiisoft\\yii2\\web\\Response.php(337): yii\\web\\Response->prepare()", "#5 E:\\wwwroot\\pcs-api-feature-base-3.0\\vendor\\yiisoft\\yii2\\base\\Application.php(392): yii\\web\\Response->send()", "#6 E:\\wwwroot\\pcs-api-feature-base-3.0\\api\\web\\index.php(17): yii\\base\\Application->run()", "#7 {main}" ]} |
2、查看代码如下
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | <?phpnamespace api\rests\check_status;use Yii;use yii\web\HttpException;use yii\base\Exception;use yii\data\ActiveDataProvider;use yii\data\DataFilter;class IndexAction extends \yii\rest\IndexAction{ /** * @return int|string|ActiveDataProvider|DataFilter|null */ public function run() { try { Yii::$app->db->open(); if (!Yii::$app->redis->ping()){ throw new HttpException(500, 'Redis is unavailable.'); } elseif (!Yii::$app->db->getIsActive()){ throw new HttpException(500, 'Database is unavailable.'); } else { return 200; } } catch (Exception $e) { $res = Yii::$app->response; $res->statusCode = 500; return $e->getMessage(); } }} |
3、打印输出 $e->getMessage()，其中包含乱码。如图1
图1
1 | SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: ��֪�������������� |
4、编辑代码，mb_convert_encoding — 转换字符的编码。响应状态码为：500，响应体为：”SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: 不知道这样的主机。 “。如图2
![编辑代码，mb_convert_encoding — 转换字符的编码。响应状态码为：500，响应体为："SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: 不知道这样的主机。 "。](https://www.shuijingwanwq.com/wp-content/uploads/2021/04/2.jpg)
图2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | <?phpnamespace api\rests\check_status;use Yii;use yii\web\HttpException;use yii\base\Exception;use yii\data\ActiveDataProvider;use yii\data\DataFilter;class IndexAction extends \yii\rest\IndexAction{ /** * @return array|false|int|string|string[]|ActiveDataProvider|DataFilter|null */ public function run() { try { Yii::$app->db->open(); if (!Yii::$app->redis->ping()){ throw new HttpException(500, 'Redis is unavailable.'); } elseif (!Yii::$app->db->getIsActive()){ throw new HttpException(500, 'Database is unavailable.'); } else { return 200; } } catch (Exception $e) { Yii::$app->response->statusCode = 500; $message = mb_convert_encoding($e->getMessage(), "UTF-8", ["UTF-8", "GBK", "GB2312", "BIG5"]); return $message; } }} |
5、初步推测，不知道这样的主机是由 Windows 10 系统返回的。与是否是中文无甚关系，而是与中文本身的编码存在关系。因为 message 为：”Failed to open redis DB connection (tcp://localhost:63799, database=57): 10061 – 由于目标计算机积极拒绝，无法连接。\r\n” 时，未转换字符的编码也是可以正常运行的。
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