【IT168 技术文档】在asp.net与mysql数据库打交道的时候，由于配置的问题，会遇到自己写的方法在读取数据库中数据的时候，英文，数字可以正常通过，但是中文就无法通过，以登录为例(方法略)，当输入英文用户名的时候可以正常登录，但输入中午的时候方法就会报错，解决方法如下：
1，在 mysql数据库安装目录下找到my.ini文件，把default-character-set的值修改为 default-character-set=gb2312(修改两处)，保存，重新启动。
2，找到asp.net文件的web.config文件，在标签的后面添加
3，如果连接数据库的字符串写在web.config里面，则在连接字符串里面添加charset=gb2312(如:)
4,重新编译。
有时还会遇到数据库里面显示的数据是中午，但读取到页面之后成了乱码，而且在写存储工程的时候，有中文出现，编译不会通过，我的解决方法是，我的解决方法是，把中文都转化为十六进制，然后读出来。代码如下
Mysql:
drop procedure if exists proc_hm_holiday_top5;
create procedure proc_hm_holiday_top5()
begin
select *,(select userinfo_name from hm_userinfo where userinfo_id=holiday_uid) as username,
case
when holiday_type=1 and holiday_typeTwo=1 then _utf8 0xE8AFB7E581872FE79785E5818720
when holiday_type=1 and holiday_typeTwo=2 then _utf8 0xE8AFB7E581872FE4BA8BE5818720
when holiday_type=1 and holiday_typeTwo=3 then _utf8 0xE8AFB7E581872FE4B8A7E5818720
when holiday_type=1 and holiday_typeTwo=4 then _utf8 0xE8AFB7E581872FE5A99AE5818720
when holiday_type=1 and holiday_typeTwo=5 then _utf8 0xE8AFB7E581872FE4BAA7E5818720
when holiday_type=1 and holiday_typeTwo=6 then _utf8 0xE8AFB7E581872FE5B9B4E5818720
when holiday_type=1 and holiday_typeTwo=7 then _utf8 0xE8AFB7E581872FE585B6E4BB9620
when holiday_type=2 then _utf8 0xE58AA0E78FAD
when holiday_type=3 then _utf8 0xE587BAE5B7AE
when holiday_type=4 then _utf8 0xE7A7BBE4BC91
end
as holiday_class from hm_holiday where 1=1 order by holiday_addTime desc limit 5;
end;
create procedure proc_hm_holiday_top5()
begin
select *,(select userinfo_name from hm_userinfo where userinfo_id=holiday_uid) as username,
case
when holiday_type=1 and holiday_typeTwo=1 then _utf8 0xE8AFB7E581872FE79785E5818720
when holiday_type=1 and holiday_typeTwo=2 then _utf8 0xE8AFB7E581872FE4BA8BE5818720
when holiday_type=1 and holiday_typeTwo=3 then _utf8 0xE8AFB7E581872FE4B8A7E5818720
when holiday_type=1 and holiday_typeTwo=4 then _utf8 0xE8AFB7E581872FE5A99AE5818720
when holiday_type=1 and holiday_typeTwo=5 then _utf8 0xE8AFB7E581872FE4BAA7E5818720
when holiday_type=1 and holiday_typeTwo=6 then _utf8 0xE8AFB7E581872FE5B9B4E5818720
when holiday_type=1 and holiday_typeTwo=7 then _utf8 0xE8AFB7E581872FE585B6E4BB9620
when holiday_type=2 then _utf8 0xE58AA0E78FAD
when holiday_type=3 then _utf8 0xE587BAE5B7AE
when holiday_type=4 then _utf8 0xE7A7BBE4BC91
end
as holiday_class from hm_holiday where 1=1 order by holiday_addTime desc limit 5;
end;
C#代码(将中文转化为十六进制)
public string GetHexFromChs(string s)
{
if ((s.Length % 2) != 0)
{
s += " ";//空格
}
System.Text.Encoding chs = System.Text.Encoding.GetEncoding("utf-8");
byte[] bytes = chs.GetBytes(s);
string str = "";
for (int i = 0; i < bytes.Length; i++)
{
str += string.Format("{0:X}", bytes[i]);
}
return str;
}
private void button1_Click(object sender, EventArgs e)
{
string shuru = textBox1.Text.Trim().ToString();
string str = GetHexFromChs(shuru);
textBox2.Text = str.Trim().Trim();
}
{
if ((s.Length % 2) != 0)
{
s += " ";//空格
}
System.Text.Encoding chs = System.Text.Encoding.GetEncoding("utf-8");
byte[] bytes = chs.GetBytes(s);
string str = "";
for (int i = 0; i < bytes.Length; i++)
{
str += string.Format("{0:X}", bytes[i]);
}
return str;
}
private void button1_Click(object sender, EventArgs e)
{
string shuru = textBox1.Text.Trim().ToString();
string str = GetHexFromChs(shuru);
textBox2.Text = str.Trim().Trim();
}
