skip-character-set-client-handshake 与 character-set-client-handshake
my.cnf [mysql] default-character-set = gbk [mysqld] skip-character-set-client-handshake=1 跳过mysql程序起动时的字符参数设置 ，使用服务器端字符集设置
修改不过来
[root@localhost ~]# mysql -uroot -p --default-character-set=latin1 Enter password: mysql> show variables like "%char%"; +--------------------------+------------------------------------+ | Variable_name | Value | +--------------------------+------------------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | utf8 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | utf8 | | character_set_system | utf8 | | character_sets_dir | /usr/local/mysql56/share/charsets/ | +--------------------------+------------------------------------+ 8 rows in set (0.01 sec) mysql> set names latin1 ; //进入环境中才可以设置 Query OK, 0 rows affected (0.00 sec) mysql> show variables like "%char%"; +--------------------------+------------------------------------+ | Variable_name | Value | +--------------------------+------------------------------------+ | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | utf8 | | character_set_filesystem | binary | | character_set_results | latin1 | | character_set_server | utf8 | | character_set_system | utf8 | | character_sets_dir | /usr/local/mysql56/share/charsets/ | +--------------------------+------------------------------------+ 8 rows in set (0.01 sec)
[my.cnf] [mysql] default-character-set = gbk [mysqld] character-set-client-handshake = 0
[root@localhost ~]# mysql -uroot -p --default-character-set=latin1 Enter password: mysql> show variables like "%char%"; +--------------------------+------------------------------------+ | Variable_name | Value | +--------------------------+------------------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | utf8 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | utf8 | | character_set_system | utf8 | | character_sets_dir | /usr/local/mysql56/share/charsets/ | +--------------------------+------------------------------------+ 8 rows in set (0.01 sec) mysql> set names gbk; Query OK, 0 rows affected (0.00 sec) mysql> show variables like "%char%"; +--------------------------+------------------------------------+ | Variable_name | Value | +--------------------------+------------------------------------+ | character_set_client | gbk | | character_set_connection | gbk | | character_set_database | utf8 | | character_set_filesystem | binary | | character_set_results | gbk | | character_set_server | utf8 | | character_set_system | utf8 | | character_sets_dir | /usr/local/mysql56/share/charsets/ | +--------------------------+------------------------------------+ 8 rows in set (0.18 sec)
[mysqld]
character-set-server = gbk skip-character-set-client-handshake=1 //使用服务端字符集
[root@localhost ~]# mysql -uroot -p --default-character-set=latin1 Enter password: mysql> show variables like "%char%"; +--------------------------+------------------------------------+ | Variable_name | Value | +--------------------------+------------------------------------+ | character_set_client | gbk | | character_set_connection | gbk | | character_set_database | gbk | | character_set_filesystem | binary | | character_set_results | gbk | | character_set_server | gbk | | character_set_system | utf8 | | character_sets_dir | /usr/local/mysql56/share/charsets/ | +--------------------------+------------------------------------+ 8 rows in set (0.02 sec)
[mysqld]
character-set-server = gbk character-set-client-handshake=0 //使用服务端字符集
[root@localhost ~]# mysql -uroot -p --default-character-set=latin1
Enter password:
mysql> show variables like "%char%";
+--------------------------+------------------------------------+
| Variable_name | Value |
+--------------------------+------------------------------------+
| character_set_client | gbk |
| character_set_connection | gbk |
| character_set_database | gbk |
| character_set_filesystem | binary |
| character_set_results | gbk |
| character_set_server | gbk |
| character_set_system | utf8 |
| character_sets_dir | /usr/local/mysql56/share/charsets/ |
+--------------------------+------------------------------------+
8 rows in set (0.02 sec)
[mysqld]
character-set-server = gbk
character-set-client-handshake = 1
[root@localhost ~]# mysql -uroot -p --default-character-set=latin1 Enter password: mysql> show variables like "%char%"; +--------------------------+------------------------------------+ | Variable_name | Value | +--------------------------+------------------------------------+ | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | gbk | | character_set_filesystem | binary | | character_set_results | latin1 | | character_set_server | gbk | | character_set_system | utf8 | | character_sets_dir | /usr/local/mysql56/share/charsets/ | +--------------------------+------------------------------------+ 8 rows in set (0.02 sec)
mysql 字符集非交互设置:当mysql起动连到mysqld时,非手动命令
mysql字符集交互设置:通过命令行手动设置
MySQL 5.5版本解决中文乱码问题时my.ini内
[mysqld]项中不能再写default-character-set=utf8
来看看如何解决乱码问题：
在mysql中默认字符集是latin1，
想要设置字符集为uft-8，可以在 my.cnf 文件中添加以下设置：
·［client］
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default-character-set=utf8 |
·［mysqld］
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default-character-set=utf8 |
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skip-character-set-client-handshake #此处是忽略客户端的字符集，使用服务器的设置 |
（skip语句和client中的default选一个）
当然你可以在建立数据库是规定字符集：
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create database db_name default character set utf8 callate utf8-general-ci； |
也可以在链接数据库前设置：
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set names 'utf8'； |
重点在红字上，加了skip-character-set-client-handshake，client里面就不用加default了
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show variables like 'characte%'; |
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+--------------------------+----------------------------+ |
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| Variable_name | Value | |
04 |
+--------------------------+----------------------------+ |
05 |
| character_set_client | utf8 | |
06 |
| character_set_connection | utf8 | |
07 |
| character_set_database | utf8 | |
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| character_set_filesystem | binary | |
09 |
| character_set_results | utf8 | |
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| character_set_server | utf8 | |
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| character_set_system | utf8 | |
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| character_sets_dir | /usr/share/mysql/charsets/ | |
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+--------------------------+----------------------------+ |
但是根据以上的配置过了后，mysql就无法启动了，这是为什么呢？往下看：
在5.1版本时，为了解决中文乱码问题设置默认字符集为utf8时，在my.ini内的 [mysql] 和 [mysqld] 项中都是写：
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default-character-set=utf8 |
到了5.5版本， [mysql] 项内可以这么写， [mysqld] 项内这么写在启动MySQL服务时会有1067错误，经查询发现这里必须要这样写：
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character-set-server=utf8 |
目前已知5.1和5.5有这么一个不同之处，且是从5.5的安装版本自动生成的my.ini文件中看出的。配置免安装的5.5版本还需要进一步的实验。
