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SSM修改方法出现乱码怎么解决?

[DEBUG] 2018-08-16 10:55:29,169 com.bdqn.mapper.StudentMapper.UpdStu - ==>  Preparing: update StudentInfo set sname=?,sage=?,sgender=?,saddress=?,semail=? where sid=?; 

[DEBUG] 2018-08-16 10:55:29,187 com.bdqn.mapper.StudentMapper.UpdStu - ==> Parameters: ?????¨è??(String), 19(Integer), ???(String), ????????????é?????(String), quanfang@163.com(String), 0(Integer)


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