先来一段代码: package yichang; public class MyExceptionTest { public static void main(String[] args) { int dividend = 0; int divisor; int result = 0; try { dividend = Integer.parseInt(args[0]); divisor = Integer.parseInt(args[1]); result = dividend / divis
需求是查询级别为0的用户 User对象里的level字段的值为0,查询时居然没有查到为level为0的用户. <select id="selectSelective" parameterType="com.agri.entity.User" resultMap="map"> select * from sys_user where del_flag = 1 <if test="level != null and lev