向MySQL插入数据乱码解决办法
现象:用JDBC将中文字段插入MySQL数据库中，然后打开表发现，那些字段都是quot;??quot;,或者是乱码.原因:1.创建数据库时没有指定
现象:用JDBC将中文字段插入MySQL数据库中，然后打开表发现，那些字段都是"??",或者是乱码.
原因:
1.创建数据库时没有指定默认的编码方式，，导致数据库使用了MySql的默认字符集latin1。
2.Client端字符集为latin1.
3.进行jdbc链接时使用了不匹配的字符集。
解决办法：
1.创建数据库时将数据库的缺省字符集指定为utf8。sql语句没查到...
2.修改Client默认字符集为utft。windows下在mysql安装目录下找到my.ini,将里面的default-character-set=latin1 改为default-character-set=UTF8，然后重起mysql服务即可将数据库默认字符集改为utf8.此时应该在mysql命令行用\s命令检查一下看是否改好了。
3.修改jdbc的链接，将原来的
jdbc:mysql://localhost:3306/YourDb
改为
jdbc:mysql://localhost:3306/YourDb?useUnicode=true&characterEncoding=UTF-8
做完以上工作后，插入到mysql的中文应该不会再是乱码了.
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