mysql導(dǎo)入文件中文亂碼的解決辦法：首先創(chuàng)建數(shù)據(jù)庫并制定編碼；然后在導(dǎo)入數(shù)據(jù)庫文件之前，制定編碼set names utf8即可。
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繼續(xù)昨天的問題，數(shù)據(jù)庫配置好后，查詢表發(fā)現(xiàn)中文亂碼了，看了網(wǎng)上的幾個方法也沒解決。
感覺是導(dǎo)入的sql文件問題，那么逆向的思考，用命令創(chuàng)建個數(shù)據(jù)庫，添加些數(shù)據(jù)，然后導(dǎo)出來看看什么情況。
向表內(nèi)插入數(shù)據(jù)的時候發(fā)現(xiàn)報錯：
ERROR 1366 (HY000): Incorrect string value: ‘xE6xB5x8BxE8xAFx95’ for column ‘bookname’ at row 1
這就奇怪了，查看表結(jié)構(gòu)：
show create table book;
看到了一個不想看到的編碼格式latin1,果斷改掉，通過命令：alter table book default character set utf8;
改完看到一個神清氣爽的結(jié)果，表的編碼改過來了，但還存在一個“什么鬼？”，字段有個亂碼latin1 ：
果斷再改，通過命令：alter table book change bookname bookname varchar(32) character set utf8;
改完后也不看了，直接插數(shù)據(jù)試試：
insert into book (id,bookname,size,price) values (1,"測試",2,3) ;
插入成功，查看數(shù)據(jù)是不是還中文亂碼，發(fā)現(xiàn)并不亂碼了：
那么開始進行下一步，導(dǎo)出sql文件，進入到mysql的bin目錄下，開始通過命令導(dǎo)出，這個過程需要輸入密碼
E:mysql-5.7.28-winx64bin>mysqldump -u root -p test > test.sql Enter password: *******
導(dǎo)出的文件，表的編碼格式utf8，與之前導(dǎo)入文件的比較并看不出什么問題。
那么，就是之前導(dǎo)入文件的過程，創(chuàng)建數(shù)據(jù)庫的過程除了問題，查看之前導(dǎo)入的mydb.sql 的mydb數(shù)據(jù)庫結(jié)構(gòu)，果然不對：
mysql> use mydb; Database changed mysql> show variables like 'character_set_database'; +------------------------+--------+ | Variable_name | Value | +------------------------+--------+ | character_set_database | latin1 | +------------------------+--------+ 1 row in set, 1 warning (0.00 sec)
遂修改之：alert database mydb character set utf8;
然后再查看表的編碼，發(fā)現(xiàn)有鬼：
mysql> show create table sp_user_cart; +--------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Table | Create Table | +--------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | sp_user_cart | CREATE TABLE `sp_user_cart` ( `cart_id` int(11) unsigned NOT NULL AUTO_INCREMENT COMMENT '涓婚敭', `user_id` int(11) unsigned NOT NULL COMMENT '瀛﹀憳id', `cart_info` text CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci COMMENT '璐?墿杞﹁?鎯呬俊鎭?紝浜岀淮鏁扮粍搴忓垪鍖栦俊鎭', `created_at` timestamp NULL DEFAULT NULL, `updated_at` timestamp NULL DEFAULT NULL, `delete_time` timestamp NULL DEFAULT NULL, PRIMARY KEY (`cart_id`) ) ENGINE=InnoDB AUTO_INCREMENT=22 DEFAULT CHARSET=utf8
utf8mb4_unicode_ci 這個東西是怎么出來的…
然后改了編碼，查詢，還是不對，想起來之前創(chuàng)建數(shù)據(jù)庫，可能是忘記設(shè)置編碼，導(dǎo)入的東西本來就亂碼了，也或者是my.ini配置不對，從頭開始用正確流程試試吧。
先查看數(shù)據(jù)庫的編碼設(shè)置:show variables like ‘character%’;
發(fā)現(xiàn)很混亂：
mysql> show variables like 'character%'; +--------------------------+----------------------------------------+ | Variable_name | Value | +--------------------------+----------------------------------------+ | character_set_client | gbk | | character_set_connection | gbk | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | gbk | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | D:mysql-5.7.29-winx64sharecharsets | +--------------------------+----------------------------------------+
開始改，通過一系列的set
set character_set_client = utf8;
得到結(jié)果
+--------------------------+----------------------------------------+ | Variable_name | Value | +--------------------------+----------------------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | utf8 | | character_set_filesystem | utf8 | | character_set_results | utf8 | | character_set_server | utf8 | | character_set_system | utf8 | | character_sets_dir | D:mysql-5.7.29-winx64sharecharsets | +--------------------------+----------------------------------------+
創(chuàng)建數(shù)據(jù)庫并制定編碼：CREATE DATABASE test2 CHARACTER SET utf8 COLLATE utf8_general_ci;
使用：use test2
在導(dǎo)入數(shù)據(jù)庫文件之前，制定編碼set names utf8;
導(dǎo)入：source F:xxxxxxxxmydb.sql;
不算漫長的等待之后，查詢，不亂碼了
mysql> select * from sp_role; +---------+---------------+--------------------------------------------------------------------------------------------- ------------------------------------------------------+----------------------------------------------------------------- ------------------------+--------------------+ | role_id | role_name | ps_ids | ps_ca | role_desc | +---------+---------------+--------------------------------------------------------------------------------------------- ------------------------------------------------------+----------------------------------------------------------------- ------------------------+--------------------+ | 30 | 主管 | 101,0,104,116,115,142,143,144,121,122,123,149,102,107,109,103,111,129,130,134,135,138,139,14 0,141,112,147,125,110,131,132,133,136,137,145,146,148 | Goods-index,Goods-tianjia,Category-index,Order-showlist,Brand-in dex | 技術(shù)負責人 | | 31 | 測試角色 | 101,0,104,105,116,117,115,142,143,144,121,122,123,149,103,111,129,134,138,112,147 | Goods-showlist,Goods-tianjia,Category-showlist,Order-showlist,Or der-dayin,Order-tianjia | 測試角色描述 | | 34 | 測試角色2 | 0,105,116,142,143,122 | NULL | 測試描述12 | | 39 | 大發(fā)送到 | 101,0,104,105,116 | NULL | 阿斯蒂芬 | | 40 | test | 102,0,107,109,154,155,145,146,148 | NULL
實戰(zhàn)項目可以繼續(xù)進行，遂生法喜。
