mybatis plus or使用

QueryWrapper queryWrapper = new QueryWrapper();

queryWrapper .and(wrapper -> wrapper.isNull(“sim”).or().eq(“sim”, “”));

queryWrapper .eq(“is_delete”, “0”);

对应sql语句：

select * from vehicle where (sim is null or sim=’’) and is_delete=‘0’

QueryWrapper queryWrapper = new QueryWrapper();

queryWrapper .eq(“name”,“测试”).or().eq(“sim”,“2”);

对应sql语句：

select * from vehicle where name=‘测试’ or sim=‘2’