MyBatis mapper文件中的变量引用方式#{}与${}的差别 默认情况下,使用#{}语法,MyBatis会产生PreparedStatement语句中,并且安全的设置PreparedStatement参数,这个过程中MyBatis会进行必要的安全检查和转义. 示例1: 执行SQL:Select * from emp where name = #{employeeName} 参数:employeeName=>Smith 解析后执行的SQL:Select * from emp where n
MyBatis mapper文件中的变量引用方式#{}与${}的差别 默认情况下,使用#{}语法,MyBatis会产生PreparedStatement语句中,并且安全的设置PreparedStatement参数,这个过程中MyBatis会进行必要的安全检查和转义.示例1:执行SQL:Select * from emp where name = #{employeeName}参数:employeeName=>Smith解析后执行的SQL:Select * from emp where name
0.报错&提示信息: 'clickable' attribute found, please also add 'focusable' A widget that is declared to be clickable but not declared to be focusable is not accessible via the keyboard. Please add the focusable attribute as well. 1.原因: 一个控件,如果没有定义focusable