10 2022 档案
摘要:下滑线和驼峰之间转换 String key = CaseFormat.LOWER_CAMEL.to(CaseFormat.LOWER_UNDERSCORE,key)//驼峰转下划线 String key = CaseFormat.LOWER_UNDERSCORE.to(CaseFormat.LOWE
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摘要:mybatis 判断字符是否相等 1.外面单引号 里面双引号表示字符串 <if test='showColumn == null or showColumn == "" '> srr.id </if> <if test='showColumn != null and showColumn != ""
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