java 自己写分页

long current =1;
long size =100;
String currentOther = jsonObject.getStr("current");

if(StrUtil.isNotBlank(currentOther)){
    //?:0或1个, *:0或多个, +:1或多个
    Boolean strResult1 = currentOther.matches("^[-\\+]?([0-9]+\\.?)?[0-9]+$");
    if(strResult1){
        current = Long.valueOf(currentOther);
    }
}
String sizeOther = jsonObject.getStr("size");
if(StrUtil.isNotBlank(sizeOther)){
    //?:0或1个, *:0或多个, +:1或多个
    Boolean strResult1 = sizeOther.matches("^[-\\+]?([0-9]+\\.?)?[0-9]+$");
    if(strResult1){
        size = Long.valueOf(sizeOther);
    }

}
OdpsJtjYxqzPageVO vo = new OdpsJtjYxqzPageVO();
vo.setSize(size);
vo.setCurrent((current-1)*size);