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小編給大家分享一下MySQL會(huì)出現(xiàn)中文亂碼問題怎么辦,希望大家閱讀完這篇文章后大所收獲,下面讓我們一起去探討吧!
1、MySQL會(huì)出現(xiàn)中文亂碼的原因
當(dāng)我們?cè)谑褂肕ySQL數(shù)據(jù)庫的時(shí)候,經(jīng)常會(huì)碰到亂碼的問題,看下面的代碼。
mysql> create table test(id int,name varchar(10)); Query OK, 0 rows affected (0.01 sec) mysql> insert into test values(1,'宋蔚然'); ERROR 1366 (HY000): Incorrect string value: '\xE5\xAE\x8B\xE8\x94\x9A...' for column 'name' at row 1 mysql>
相關(guān)學(xué)習(xí)推薦:mysql視頻教程
很顯然,當(dāng)插入中文的時(shí)候報(bào)錯(cuò),原因在哪呢?
mysql> show variables like '%CHARACTER%'; +--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+
character_set_client 客戶端使用的字符編碼
character_set_connection 數(shù)據(jù)庫鏈接使用的編碼
character_set_database 數(shù)據(jù)庫使用的字符編碼
原來是字符編碼與服務(wù)端、數(shù)據(jù)庫的編碼不統(tǒng)一而造成的。
2、MySQL會(huì)出現(xiàn)中文亂碼的解決方法
方法一:設(shè)置names
mysql> set names latin1; mysql> set names latin1; Query OK, 0 rows affected (0.00 sec) mysql> select * from test; Empty set (0.00 sec) mysql> insert into test values(1,'宋蔚然'); Query OK, 1 row affected (0.01 sec) mysql> select * from test; +------+-----------+ | id | name | +------+-----------+ | 1 | 宋蔚然 | +------+-----------+ 1 row in set (0.00 sec)
再來看一下字符集的設(shè)置
mysql> show variables like '%CHARACTER%'; +--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | latin1 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+
字符編碼統(tǒng)一就不會(huì)出現(xiàn)亂碼。
解決亂碼問題其實(shí)就是將客戶端的字符編碼與服務(wù)端、數(shù)據(jù)庫的編碼統(tǒng)一。這里的服務(wù)端與數(shù)據(jù)庫編碼都是latin1,所有set names latin1即可臨時(shí)解決亂碼問題。
方法二:修改數(shù)據(jù)庫配置文件字符集為UTF8
UTF8支持很多語言體系,因此在生產(chǎn)中強(qiáng)烈建議將字符編碼設(shè)置UTF8。打開數(shù)據(jù)庫的配置文件,分別在[client],[mysql],[mysqld]下添加如下內(nèi)容。
#vi /mysql/data/3306/my.cnf [client] default-character-set=utf8 [mysql] default-character-set=utf8 [mysqld] default-storage-engine=INNODB character-set-server=utf8 collation-server=utf8_general_ci
重啟數(shù)據(jù)庫
[root@test ~]# systemctl restart mysqld
重寫創(chuàng)建庫和表
mysql> create database test; Query OK, 1 row affected (0.00 sec) mysql> use test; Database changed mysql> create table test(id int,name varchar(10)); Query OK, 0 rows affected (0.02 sec) mysql> insert into test values(1,'宋蔚然'); Query OK, 1 row affected (0.00 sec) mysql> select * from test; +------+-----------+ | id | name | +------+-----------+ | 1 | 宋蔚然 | +------+-----------+ 1 row in set (0.00 sec)
再來看一下字符集的設(shè)置
mysql> show variables like '%CHARACTER%'; +--------------------------+----------------------------+ | 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/share/mysql/charsets/ | +--------------------------+----------------------------+
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1、MySQL會(huì)出現(xiàn)中文亂碼的原因
當(dāng)我們?cè)谑褂肕ySQL數(shù)據(jù)庫的時(shí)候,經(jīng)常會(huì)碰到亂碼的問題,看下面的代碼。
mysql> create table test(id int,name varchar(10)); Query OK, 0 rows affected (0.01 sec) mysql> insert into test values(1,'宋蔚然'); ERROR 1366 (HY000): Incorrect string value: '\xE5\xAE\x8B\xE8\x94\x9A...' for column 'name' at row 1 mysql>
很顯然,當(dāng)插入中文的時(shí)候報(bào)錯(cuò),原因在哪呢?
mysql> show variables like '%CHARACTER%'; +--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+
character_set_client 客戶端使用的字符編碼
character_set_connection 數(shù)據(jù)庫鏈接使用的編碼
character_set_database 數(shù)據(jù)庫使用的字符編碼
原來是字符編碼與服務(wù)端、數(shù)據(jù)庫的編碼不統(tǒng)一而造成的。
2、MySQL會(huì)出現(xiàn)中文亂碼的解決方法
方法一:設(shè)置names
mysql> set names latin1; mysql> set names latin1; Query OK, 0 rows affected (0.00 sec) mysql> select * from test; Empty set (0.00 sec) mysql> insert into test values(1,'宋蔚然'); Query OK, 1 row affected (0.01 sec) mysql> select * from test; +------+-----------+ | id | name | +------+-----------+ | 1 | 宋蔚然 | +------+-----------+ 1 row in set (0.00 sec)
再來看一下字符集的設(shè)置
mysql> show variables like '%CHARACTER%'; +--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | latin1 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+
字符編碼統(tǒng)一就不會(huì)出現(xiàn)亂碼。
解決亂碼問題其實(shí)就是將客戶端的字符編碼與服務(wù)端、數(shù)據(jù)庫的編碼統(tǒng)一。這里的服務(wù)端與數(shù)據(jù)庫編碼都是latin1,所有set names latin1即可臨時(shí)解決亂碼問題。
方法二:修改數(shù)據(jù)庫配置文件字符集為UTF8
UTF8支持很多語言體系,因此在生產(chǎn)中強(qiáng)烈建議將字符編碼設(shè)置UTF8。打開數(shù)據(jù)庫的配置文件,分別在[client],[mysql],[mysqld]下添加如下內(nèi)容。
#vi /mysql/data/3306/my.cnf [client] default-character-set=utf8 [mysql] default-character-set=utf8 [mysqld] default-storage-engine=INNODB character-set-server=utf8 collation-server=utf8_general_ci
重啟數(shù)據(jù)庫
[root@test ~]# systemctl restart mysqld
重寫創(chuàng)建庫和表
mysql> create database test; Query OK, 1 row affected (0.00 sec) mysql> use test; Database changed mysql> create table test(id int,name varchar(10)); Query OK, 0 rows affected (0.02 sec) mysql> insert into test values(1,'宋蔚然'); Query OK, 1 row affected (0.00 sec) mysql> select * from test; +------+-----------+ | id | name | +------+-----------+ | 1 | 宋蔚然 | +------+-----------+ 1 row in set (0.00 sec)
再來看一下字符集的設(shè)置
mysql> show variables like '%CHARACTER%'; +--------------------------+----------------------------+ | 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/share/mysql/charsets/ | +--------------------------+----------------------------+
看完了這篇文章,相信你對(duì)MySQL會(huì)出現(xiàn)中文亂碼問題怎么辦有了一定的了解,想了解更多相關(guān)知識(shí),歡迎關(guān)注億速云行業(yè)資訊頻道,感謝各位的閱讀!
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