原始报错
Unknown initial character set index '255' received from server. Initial client character set can be forced via the 'characterEncoding' property.
经过百度搜索,咱知道了是jar包的编码问题
百度说url加这个?useUnicode=true&characterEncoding=UTF-8后缀设置编码,但是咱用的是c3p0的数据库连接池,直接在配置文件配置url,这下该如何解决