在MAC下配置mysql数据库的编码问题_MySQL

bitsCN.com

最近安装了mac osx lion系统，然后安装了mysql5.5.16版本的数据库进行开发，但是大家都知道，mysql的默认编码是latin1，如果存储中文的话就会出现乱码，然后就狂google这个问题，但是一直都没有解决，网上大部分的回答都是如下：

1.拷贝/usr/local/mysql/support-files下的任意一个*.cnf文件到/etc/my.cnf；

2.在my.cnf文件的［mysqld］和［client］后面添加一句default-character-set=utf8（或者是default_character_set=utf8）；

3.保存退出；

4.重新启动mysql服务器就可以。

可是我试过好多次，这样修改之后，mysql服务根本就启动不了。

偶然的机会，我发现了一个关于在linux下配置mysql的编码问题的方法，抱着试试看的态度，我进行了修改，发现真的可以用，因此发这篇博文希望装mac的朋友不用再走弯路了。配置方法如下：

1.拷贝/usr/local/mysql/support-files下的任意一个*.cnf文件到/etc/my.cnf；

2.在my.cnf文件的［client］后面添加一句default-character-set=utf8（ 不是default_character_set=utf8[i][/i]，这个配置我没有试过，不知道能不能成功），关键在这里的配置，在［mysqld］后面添加如下三句：

default-storage-engine=INNODB

character-set-server=utf8

collation-server=utf8_general_ci；

3.保存退出；

4.重新启动mysql服务器就可以。

然后再就入mysql数据库查看编码发现改成了utf8了。

下面是我重启mysql服务器进入mysql数据库查出来的结果：

Java代码

Welcome to the MySQL monitor. Commands end with ; or /g.

Your MySQL connection id is 520

Server version: 5.5.16 MySQL Community Server (GPL)

Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.

mysql> show variables like '%char%';

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

| 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 | /usr/local/mysql-5.5.16-osx10.6-x86_64/share/charsets/ |

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

8 rows in set (0.00 sec)

Welcome to the MySQL monitor. Commands end with ; or /g.

Your MySQL connection id is 520

Server version: 5.5.16 MySQL Community Server (GPL)

Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.

mysql> show variables like '%char%';

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

| 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 | /usr/local/mysql-5.5.16-osx10.6-x86_64/share/charsets/ |

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

8 rows in set (0.00 sec)

至此，这个困扰多日的问题终于解决了。

附修改好的my.cnf文件内容，不知道为什么附件我上传不了，就把代码贴出来吧：

Java代码

# Example MySQL config file for small systems.

#

# This is for a system with little memory (

# from time to time and it's important that the mysqld daemon

# doesn't use much resources.

#

# MySQL programs look for option files in a set of

# locations which depend on the deployment platform.

# You can copy this option file to one of those

# locations. For information about these locations, see:

# http://dev.mysql.com/doc/mysql/en/option-files.html

#

# In this file, you can use all long options that a program supports.

# If you want to know which options a program supports, run the program

# with the "--help" option.

# The following options will be passed to all MySQL clients

[client]

default-character-set=utf8

#password = your_password

port = 3306

socket = /tmp/mysql.sock

# Here follows entries for some specific programs

# The MySQL server

[mysqld]

default-storage-engine=INNODB

character-set-server=utf8

collation-server=utf8_general_ci

port = 3306

socket = /tmp/mysql.sock

skip-external-locking

key_buffer_size = 16K

max_allowed_packet = 1M

table_open_cache = 4

sort_buffer_size = 64K

read_buffer_size = 256K

read_rnd_buffer_size = 256K

net_buffer_length = 2K

thread_stack = 128K

# Don't listen on a TCP/IP port at all. This can be a security enhancement,

# if all processes that need to connect to mysqld run on the same host.

# All interaction with mysqld must be made via Unix sockets or named pipes.

# Note that using this option without enabling named pipes on Windows

# (using the "enable-named-pipe" option) will render mysqld useless!

#

#skip-networking

server-id = 1

# Uncomment the following if you want to log updates

#log-bin=mysql-bin

# binary logging format - mixed recommended

#binlog_format=mixed

# Causes updates to non-transactional engines using statement format to be

# written directly to binary log. Before using this option make sure that

# there are no dependencies between transactional and non-transactional

# tables such as in the statement INSERT INTO t_myisam SELECT * FROM

# t_innodb; otherwise, slaves may perge from the master.

#binlog_direct_non_transactional_updates=TRUE

# Uncomment the following if you are using InnoDB tables

#innodb_data_home_dir = /usr/local/mysql/data

#innodb_data_file_path = ibdata1:10M:autoextend

#innodb_log_group_home_dir = /usr/local/mysql/data

# You can set .._buffer_pool_size up to 50 - 80 %

# of RAM but beware of setting memory usage too high

#innodb_buffer_pool_size = 16M

#innodb_additional_mem_pool_size = 2M

# Set .._log_file_size to 25 % of buffer pool size

#innodb_log_file_size = 5M

#innodb_log_buffer_size = 8M

#innodb_flush_log_at_trx_commit = 1

#innodb_lock_wait_timeout = 50

[mysqldump]

quick

max_allowed_packet = 16M

[mysql]

no-auto-rehash

# Remove the next comment character if you are not familiar with SQL

#safe-updates

[myisamchk]

key_buffer_size = 8M

sort_buffer_size = 8M

[mysqlhotcopy]

interactive-timeout

作者：zhyl2010

bitsCN.com