提要：系统自带的mysql默认字符集不是gbk,因此给数据库的推广应用以及中文程序的开发带来极大的不便,在没完没了的GBK和UTF8的转换过程中消耗了我们无数的精力以及系统的资源.经过摸索尝试解决了中文支持问题,经验与大家分享一下.
先将让slack支持中文,方法可以看"linuxsir.org 之Slackware讨论区",然后重新编译mysql,原来系统mysql的要先用卸载.login:root
shell> removepkg mysqlshell> groupadd mysqlshell> cd /appshell> mkdir mysqlshell> chmod 744 mysqlshell> useradd -G mysql -s /bin/bash –p /app/mysql mysqlshell> chown -R mysql.mysql mysql下载mysql4.x.x
shell> gunzip < mysql-VERSION.tar.gz | tar -xvf -shell> cd mysql-VERSIONshell> CFLAGS="-O3 -mcpu=pentium3" \CXX=gcc \XXFLAGS="-O3 -mcpu=pentium3 -felide-constructors" \./configure --prefix=/app/mysql \--with--charset=gbk \--with-extra-charsets="gbk gb2312 big5 utf8"\--with-unix-socket-path=/etc/mysql.sock \--enable-local-infile \--enable-thread-safe-client \--enable-assembler \--with-client-ldflags=-all-static \--with-mysqld-ldflags=-all-static//-mcpu 根据CPU类型优化编译，可以让你的mysq表现更好！可选项目很多：i386, i486, i586, i686, pentium, pentium-mmx, pentiumpro, pentium2, pentium3, pentium4, k6, k6-2, k6-3, athlon, athlon-tbird, athlon-4, athlon-xp,athlon-mp,winchip-c6, winchip2 , c3.shell> make------------------------------------------错误时候shell> make clean再回上一步------------------------------------------------------------
shell> make installshell> cp support-files/my-medium.cnf /etc/my.cnfshell> cd /app/mysqlshell> bin/mysql_install_db --user=rootshell> chown -R root .shell> chown -R mysql varshell> chgrp -R mysql .shell> ./bin/mysqld_safe --user=root --default-character-set=gbk &shell> ./bin/mysqladmin -u root password 'new-password'shell> ./bin/mysql -u root --default-character-set=gbk -pmysql> status...Server characterset: gbkDb characterset: gbkClient characterset: gbkConn. characterset: gbk....看见characterset全是gbk就算成功了.----------------------------------------------------------------------------------------------------在UTF8字符集的老数据库中,创建中文支持表脚本如下,对字段加上字符集说明 CREATE TABLE `test`.`cn` (`zh` CHAR(10) CHARACTER SET gb2312 COLLATE gb2312_chinese_ci NOT NULL,`中文` INT(11) NOT NULL)ENGINE = MYISAM;注:CHARACTER SET 写GB2312 和gbk都可以,gbk优于gb2312.对于新创建的数据库加个默认字符集声明GBK,就不用建表时候每个字段声明了,这样看起来简单流畅,没有特殊的痕迹,建议多采用这种方法.
mysql> CREATE DATABASE dbCN DEFAULT CHARACTER SET gbk COLLATE gbk_chinese_ci;CREATE TABLE `dbCN`.`cn` (`zh` CHAR(10) NOT NULL,`中文` INT(11) NOT NULL)ENGINE = MYISAM;mysql> insert into cn values("真的？",1);注:如果这些脚本用bin/mysql命令行是输入不了,可以 用mysql query Browser,或者编程执行.--------------------------------------------------------------------------------------------------------
shell> bin/mysql -u root --default-character-set=gbk -pmysql>use testmysql> select * from cn; -------- ------ | zh | 中文 | -------- ------ | 真的？| 1 | -------- ------ 1 row in set (0.00 sec)---------------------------------------------最后修改启动文件/etc/rc.d/rc.mysqld
改路径/app/mysql/bin/mysqld_safe改路径/app/mysql/var/web.pid
/app/mysql/bin/mysqld_safe 后面加入 --user=root --default-character-set=gbk
原文链接：http://slack.linuxsir.org/main/?q=node/165