导入mysql时utf8出现乱码 [英] utf8 garbled when importing into mysql

问题描述

将UTF8编码的数据导入mysql对我来说不起作用. UTF8字符已损坏.例如，Nöthnagel显示为Nöthnagel

我创建了一个SQL转储文件来执行导入，该文件包含UTF-8编码的数据.例如:

INSERT INTO `users` VALUES(1, 'Fred','Nöthnagel');

文件中表示ö的字节序列是c3 b6，我认为是正确的，因为它在vim和设置了以下环境变量的bash shell中正确显示:

$ env | grep -i utf
LANG=en_US.UTF-8
XTERM_LOCALE=en_US.UTF-8

mysql数据库的创建如下:

mysql> CREATE DATABASE mydb CHARACTER SET utf8;

mysql表的创建方式如下:

CREATE TABLE `users` (  
    `id` int(11) NOT NULL AUTO_INCREMENT,  
    `first_name` varchar(30) NOT NULL,  
    `last_name` varchar(30) NOT NULL,
    PRIMARY KEY (`id`),  
    UNIQUE KEY `last_name` (`last_name`)  
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;  

我正在导入转储文件，如下所示:

 mysql -u root -psecret mydb < mydump.sql

请告诉我以上内容中缺少的内容.

解决方案

我认为它也可能与排序规则有关，但我不确定.就我而言，确实如此，因为我必须支持西里尔字母.
试试这个，为我工作:

1. 在创建目标数据库时将初始排序规则设置为utf8_general_ci

2. 将SET NAMES 'utf8' COLLATE 'utf8_general_ci';添加到sql文件的顶部

3. 运行mysql -u root -p --default-character-set=utf8 yourDB < yourSQLfile.sql

另一件事，为了从数据库中正确获取UTF-8数据，还必须修改连接字符串.例如:

mysql.url=jdbc:mysql://localhost:3306/nbs?useJvmCharsetConverters=false&useDynamicCharsetInfo=false&useUnicode=true&characterEncoding=UTF-8&characterSetResults=UTF-8&useEncoding=true

另外，看看我的问题是什么. >

Importing UTF8-encoded data into mysql is not working for me. UTF8 characters are corrupted. For example Nöthnagel is displayed as Nöthnagel

I have created a sql dump file to do the importing which contains UTF-8 encoded data. For example:

INSERT INTO `users` VALUES(1, 'Fred','Nöthnagel');

The sequence of bytes representing ö in the file is c3 b6 which I believe is correct, as it displays correctly in vim and in my bash shell which has these environment variables set:

$ env | grep -i utf
LANG=en_US.UTF-8
XTERM_LOCALE=en_US.UTF-8

The mysql db was created as follows:

mysql> CREATE DATABASE mydb CHARACTER SET utf8;

The mysql table was created so:

CREATE TABLE `users` (  
    `id` int(11) NOT NULL AUTO_INCREMENT,  
    `first_name` varchar(30) NOT NULL,  
    `last_name` varchar(30) NOT NULL,
    PRIMARY KEY (`id`),  
    UNIQUE KEY `last_name` (`last_name`)  
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;  

I am importing the dump file like so:

 mysql -u root -psecret mydb < mydump.sql

Please tell me what is missing from the above.

解决方案

I think it might have something to do with collation as well, but I'm not sure. In my case it certainly did, since I had to support cyrillic.
Try this, worked for me:

1. Set initial collation while creating the target database to utf8_general_ci

2. Add SET NAMES 'utf8' COLLATE 'utf8_general_ci'; to the top of your sql file

3. Run mysql -u root -p --default-character-set=utf8 yourDB < yourSQLfile.sql

One more thing, in order to properly get the UTF-8 data form your database, you'll have to modify your connection string as well. For example:

mysql.url=jdbc:mysql://localhost:3306/nbs?useJvmCharsetConverters=false&useDynamicCharsetInfo=false&useUnicode=true&characterEncoding=UTF-8&characterSetResults=UTF-8&useEncoding=true

Additionally, take a look at what my problem was.

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