摘要: Student.java: StudentMapper接口定义方法: StudentMapper配置文件进行配置 <select id="getStuByIf" resultType="student"> select * from student where <!-- test:判断表达式;里面使 阅读全文
posted @ 2020-02-24 22:22 Arbitrary233 阅读(543) 评论(0) 推荐(0)