在使用MySQL數(shù)據(jù)庫(kù)進(jìn)行開發(fā)的過程中，我們常常會(huì)涉及到數(shù)據(jù)庫(kù)鏈接編碼設(shè)置問題。這是因?yàn)镸ySQL數(shù)據(jù)庫(kù)默認(rèn)使用的編碼為L(zhǎng)atin1編碼，而我們應(yīng)用程序中使用的編碼一般為UTF8編碼，因此需要進(jìn)行編碼設(shè)置。下面我們就來詳細(xì)介紹一下如何進(jìn)行MySQL數(shù)據(jù)庫(kù)鏈接編碼設(shè)置。

一、數(shù)據(jù)庫(kù)字符集設(shè)置

mysql>show variables like '%character%';
+--------------------------+---------------------------------------------------------+
| Variable_name            | Value                                                   |
+--------------------------+---------------------------------------------------------+
| character_set_client     | utf8mb4                                                 |
| character_set_connection | utf8mb4                                                 |
| character_set_database   | utf8mb4                                                 |
| character_set_filesystem | binary                                                  |
| character_set_results    | utf8mb4                                                 |
| character_set_server     | utf8mb4                                                 |
| character_set_system     | utf8                                                    |
| character_sets_dir       | /usr/local/mysql-5.7.30-linux-glibc2.12-x86_64/share/charsets/ |
+--------------------------+---------------------------------------------------------+
8 rows in set (0.00 sec)

二、MySQL字符集設(shè)置

mysql>show variables like '%collation%';
+----------------------+--------------------+
| Variable_name        | Value              |
+----------------------+--------------------+
| collation_connection | utf8mb4_general_ci |
| collation_database   | utf8mb4_general_ci |
| collation_server     | utf8mb4_general_ci |
+----------------------+--------------------+
3 rows in set (0.00 sec)

三、PHP連接MySQL字符集設(shè)置

四、Python連接MySQL字符集設(shè)置
import MySQLdb
host = 'localhost'
user = 'root'
password = ''
database = 'test'
port = 3306
#連接數(shù)據(jù)庫(kù)
conn = MySQLdb.Connect(host=host, user=user, passwd=password, db=database, port=port, charset='utf8mb4')
通過以上設(shè)置，我們就可以順利進(jìn)行MySQL數(shù)據(jù)庫(kù)的鏈接編碼設(shè)置，避免出現(xiàn)數(shù)據(jù)亂碼等問題，提高開發(fā)效率。