//根据商品名称模糊查询时可以输入空格

导包：import com.baomidou.mybatisplus.core.toolkit.ObjectUtils;

if (ObjectUtils.isNotNull(vo.getName())) {
    boolean isTrue = true;
    String condition = vo.getName().replaceAll("\\s+", " ");
    for (int i = 0; i < condition.length(); i++) {
        char chr = condition.charAt(i);
        if ((chr < 48 || chr > 57) && chr != ' ') {
            isTrue = false;
            break;
        }
    }
    if (isTrue) {
        if (condition.charAt(0) == ' ') {
            condition = condition.replaceFirst(" ", "");
        }
        condition = condition.replaceFirst(" ", "/");
        condition = condition.replaceFirst(" ", "R");
    }
    vo.setName(condition);
}