在MAC下配置mysql数据库的编码问题_MySQL

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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                                                 |  

|字符集结果    | utf8                                                   |  

|字符集服务器     | utf8                                                   |  

|字符集系统     | utf8                                                   |  

|字符集_目录       | /usr/local/mysql-5.5.16-osx10.6-x86_64/share/charsets/ | /usr/local/mysql-5.5.16-osx10.6-x86_64/share/charsets/ |  

-------------------------------------- ------------------ --------------------------------------   

集合中的 8 行 (0.00秒) 

 

欢迎使用 MySQL 监视器。  命令以 ; 结尾或 /g.

您的 MySQL 连接 ID 为 520

服务器版本：5.5.16 MySQL 社区服务器 (GPL)

 

版权所有 (c) 2000 年、2011 年，Oracle 和/或其附属公司。保留所有权利。

 

Oracle 是 Oracle Corporation 和/或其

附属公司的注册商标。其他名称可能是其各自

所有者的商标。

 

输入“帮助”；或“/h”寻求帮助。输入 '/c' 清除当前输入语句。

 

mysql>显示类似 '%char%';

的变量 -------------------------- --------- -----------------------------------------------------------

|变量名称            |值                                                  |

-------------------------------------- ---------------- ----------------------------------------------------

|字符集客户端     | utf8                                                   |

|字符集连接 | utf8                                                  |

|字符集数据库utf8                                                  |

|字符集文件系统 |二进制                                                 |

|字符集结果    | utf8                                                  |

|字符集服务器     | 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  

# 将 .._log_file_size 设置为缓冲池大小的 25%  

#innodb_log_file_size = 5M  

#innodb_log_buffer_size = 8M  

#innodb_flush_log_at_trx_commit = 1 

#innodb_lock_wait_timeout = 50 

 

[mysqldump]  

快  

max_allowed_pa​​cket = 16M  

 

[mysql ]  

no-auto-rehash  

# 如果您不熟悉 SQL，请删除下一个注释字符  

#safe-updates  

 

[myisamchk]  

key_buffer_size = 8M  

sort_buffer_size = 8M  

 

[mysqlhotcopy]  

交互超时 

 

作者：zhyl2010

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