今天在本地搭建環(huán)境之后，app端寫入后臺發(fā)現(xiàn)中文無法正確寫入，全部顯示為???，摸索了一會，設置過tomcat環(huán)境也設置過數(shù)據(jù)庫字符集，結果還是不行，后來咨詢大佬們，嘗試如下：
先在數(shù)據(jù)庫中查詢字符編碼：
show VARIABLES like 'char%';
結果如下：
+--------------------------+----------------------------------------+
| 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 | latin1 |
| character_set_system | utf8 |
| character_sets_dir | J:\mysql-5.7.16-winx64\share\charsets\ |
+--------------------------+----------------------------------------+
發(fā)現(xiàn)character_set_server這是個叛徒！原因是MySQL的默認編碼是拉丁，所以打開mysql的安裝目錄，找到my.ini，在[mysqld]最后下面加上
character_set_server=utf8
init_connect='SET NAMES utf8'
之后重啟MySQL。
再查看一下編碼，結果變?yōu)椋?/p>
+--------------------------+----------------------------------------+
| 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 | J:\mysql-5.7.16-winx64\share\charsets\ |
敵軍被干掉了，測試也一切正常了~
