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 |
collation_connection | utf8mb4_unicode_ci |
collation_database | utf8mb4_unicode_ci |
collation_server | utf8mb4_unicode_ci |
collation_connection 、collation_database 、collation_server是什么沒關(guān)系。
但必須保證
系統(tǒng)變量 | 描述 |
---|---|
character_set_client | (客戶端來(lái)源數(shù)據(jù)使用的字符集) |
character_set_connection | (連接層字符集) |
character_set_database | (當(dāng)前選中數(shù)據(jù)庫(kù)的默認(rèn)字符集) |
character_set_results | (查詢結(jié)果字符集) |
character_set_server | (默認(rèn)的內(nèi)部操作字符集) |
這幾個(gè)變量必須是utf8mb4。
5. 數(shù)據(jù)庫(kù)連接的配置
數(shù)據(jù)庫(kù)連接參數(shù)中:
characterEncoding=utf8
會(huì)被自動(dòng)識(shí)別為utf8mb4,也可以不加這個(gè)參數(shù),會(huì)自動(dòng)檢測(cè)。
而autoReconnect=true
是必須加上的。
6. 將數(shù)據(jù)庫(kù)和已經(jīng)建好的表也轉(zhuǎn)換成utf8mb4
更改數(shù)據(jù)庫(kù)編碼:
更改表編碼:
如有必要,還可以更改列的編碼
7、在第3步設(shè)置character_set_database,character_set_server不成功的可以試下直接在mysql.exe下
set @@character_set_server='utf8mb4'; set @@character_set_database='utf8mb4';
這下數(shù)據(jù)庫(kù)就可以存下emoji表情的編碼了。
附上我的my.ini
# For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the # *** default location during install, and will be replaced if you # *** upgrade to a newer version of MySQL. [client] default-character-set = utf8mb4 [mysql] default-character-set = utf8mb4 [mysqld] character-set-client-handshake = FALSE character-set-server = utf8mb4 collation-server = utf8mb4_unicode_ci init_connect='SET NAMES utf8mb4' # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # These are commonly set, remove the # and set as required. # basedir = ..... # datadir = ..... # port = ..... # server_id = ..... # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
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標(biāo)簽:南陽(yáng) 三門峽 商丘 貴州 巴中 揚(yáng)州 新余 贛州
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