用Mysql客户端查询发现乱码：

mysql> select *from user;+----+------------+----------+------------+-----------+

| id | nickname | password | first_name | last_name |

+----+------------+----------+------------+-----------+

| 1 | chaoliu | 321 | chao | liu |

| 3 | micro | 123 | bill | gates |

| 5 | helloworld | 123 | hello | world |

| 7 | ?? | 123 | ? | ? |

+----+------------+----------+------------+-----------+

4 rows in set (0.00 sec)

上网搜索之后，发现需要改一下charactor_set_results，改为utf8或者gb2312(要根据shell客户端设置的编码)

mysql> show variables like 'char%';+--------------------------+-----------------------------------------+

| Variable_name | Value |

+--------------------------+-----------------------------------------+

| character_set_client | latin1 |

| character_set_connection | latin1 |

| character_set_database | utf8 |

| character_set_filesystem | binary |

| character_set_results | latin1 |

| character_set_server | utf8 |

| character_set_system | utf8 |

| character_sets_dir | /home/work/.jumbo/share/mysql/charsets/ |

+--------------------------+-----------------------------------------+

8 rows in set (0.00sec)

mysql> set character_set_results=utf8;

Query OK,0 rows affected (0.00sec)

mysql> show variables like 'char%';+--------------------------+-----------------------------------------+

| Variable_name | Value |

+--------------------------+-----------------------------------------+

| character_set_client | latin1 |

| character_set_connection | latin1 |

| character_set_database | utf8 |

| character_set_filesystem | binary |

| character_set_results | utf8 |

| character_set_server | utf8 |

| character_set_system | utf8 |

| character_sets_dir | /home/work/.jumbo/share/mysql/charsets/ |

+--------------------------+-----------------------------------------+

8 rows in set (0.01 sec)

这时候，中文就可以正常查看了。

mysql> select *from user;+----+------------+----------+------------+-----------+

| id | nickname | password | first_name | last_name |

+----+------------+----------+------------+-----------+

| 1 | chaoliu | 321 | chao | liu |

| 3 | micro | 123 | bill | gates |

| 5 | helloworld | 123 | hello | world |

| 7 | 你好 | 123 | 中 | 文 |

+----+------------+----------+------------+-----------+

4 rows in set (0.00 sec)