jsp的程序采用二模式开发的 数据库用的是mysql5.0
本地开发的时候设置mysql 的字符集为GBK
如下：+--------------------------+--------+
| Variable_name | Value |
+--------------------------+--------+
| character_set_client | gbk |
| character_set_connection | gbk |
| character_set_database | gbk |
| character_set_filesystem | binary |
| character_set_results | gbk |
| character_set_server | gbk |
| character_set_system | utf8 |
+--------------------------+--------+
在本地开发的时候 测试和使用都正常 ；在chinajsp购买的空间后（带数据库也是mysql5.0的）把程序丢到空间上去后 和数据库相关的东西 英文和数字的可以正常使用 和数据库相关中文部分都不能用了 后来知道了他们的默认字符集是latin1 用alter database dbname default character set gbk collate gbk_chinese_ci 修改后 字符集变为：
+--------------------------+--------+
| Variable_name | Value |
+--------------------------+--------+
| character_set_client | gbk |
| character_set_connection | gbk |
| character_set_database | gbk |
| character_set_filesystem | binary |
| character_set_results | gbk |
| character_set_server | latin1 |
| character_set_system | utf8 |
+--------------------------+--------+
并且在连接字符串后面加上了useUnicode=true&characterEncoding=gbk
可是 还是不行 从数据库读出来后还是一堆问号这是怎么回是啊 救命啊！！！
建议LZ 使用SQLyogEnt工具重新再建数据库SQLyogEnt工具几乎没有出过乱码问题
¦ Variable_name ¦ Value ¦
+--------------------------+--------+
¦ character_set_client ¦ gbk ¦
¦ character_set_connection ¦ gbk ¦
¦ character_set_database ¦ gbk ¦
¦ character_set_filesystem ¦ binary ¦
¦ character_set_results ¦ gbk ¦
¦ character_set_server ¦ latin1 ¦
¦ character_set_system ¦ utf8 ¦ 乱乱的没有这样麻烦的
SQLyogEnt会帮助你的比myfront好多了
# MySQL Server Instance Configuration File
# ----------------------------------------------------------------------
# Generated by the MySQL Server Instance Configuration Wizard
#
#
# Installation Instructions
# ----------------------------------------------------------------------
#
# On Linux you can copy this file to /etc/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options
# (@localstatedir@ for this installation) or to
# ~/.my.cnf to set user-specific options.
#
# On Windows you should keep this file in the installation directory
# of your server (e.g. C:\Program Files\MySQL\MySQL Server X.Y). To
# make sure the server reads the config file use the startup option
# "--defaults-file".
#
# To run run the server from the command line, execute this in a
# command line shell, e.g.
# mysqld --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"
#
# To install the server as a Windows service manually, execute this in a
# command line shell, e.g.
# mysqld --install MySQLXY --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"
#
# And then execute this in a command line shell to start the server, e.g.
# net start MySQLXY
#
#
# Guildlines for editing this file
# ----------------------------------------------------------------------
#
# In this file, you can use all long options that the program supports.
# If you want to know the options a program supports, start the program
# with the "--help" option.
#
# More detailed information about the individual options can also be
# found in the manual.
#
#
# CLIENT SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by MySQL client applications.
# Note that only client applications shipped by MySQL are guaranteed
# to read this section. If you want your own MySQL client program to
# honor these values, you need to specify it as an option during the
# MySQL client library initialization.
#
[client]port=3306[mysql]default-character-set=gb2312
# SERVER SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by the MySQL Server. Make sure that
# you have installed the server correctly (see above) so it reads this
# file.
#
[mysqld]# The TCP/IP Port the MySQL Server will listen on
port=3306
#Path to installation directory. All paths are usually resolved relative to this.
basedir="F:/MySQL/"#Path to the database root
datadir="F:/MySQL/Data/"# The default character set that will be used when a new schema or table is
# created and no character set is defined
default-character-set=gb2312
以上红色部分改下
have a try
mysqld --character-set-server=gbk -collation-server=gbk_bin
通过MySQL Server Instance Config Wizard（自带的）
或者直接通过my.ini文件修改字符集为GBK（都知道的不细说了），
重新登录客户端，可以看到字符编码
除
character_set_filesystem ¦ binary ¦
character_set_system ¦ utf8 ¦
外都变为gbk了。
选择dos对话框上点击右键选择“默认值－>选项－>默认代码页编码为GBK”
重启dos进入mysql，用select 查看表中数据是否显示正确";
如果OK，应该是程式方面的问题了。
尝试在连接数据库的时候使用
request.setCharacterEncoding("gbk");
response.setCharacterEncoding("gbk");
或者其他字符转化方式试试，在此就不搬门弄斧了。
如果有问题的在发帖啊！！