对ORA-01795: 列表中的最大表达式数为 1000的处理(算法：计算数量及切割)

/**
* @category 
* 原：strIDs in ( 100001,100002,100003,....................,110001,120001,130001,140001,150001)
* 转后：( strIds in (100001,100002,100003) or strIds in (....,.....,.....) or strIds in (130001,140001,150001))
* @see 处理strIDs查找的数量超过1000时进行分组处理
* @param orignal 括号内的IDs字符串
* @param spiltNum 分割后的小组内的数量
* @param flag 分割符号(仅限于单字符，格式如上)
* @param titlestrIDs名称
*/
public static String dealQuerySize(String orignal,String flag,String title,int spiltNum){
       //返回无需处理的情况
      if(StringUtil.isEmpty(orignal) || StringUtil.isEmpty(flag)){
            return orignal;
      }
      int IDSNum = orignal.length()-orignal.replaceAll(flag,"").length()+1;//统计原字符串中ID的数量
      //按1组处理的情况
      if(IDSNum <=1000 && spiltNum > IDSNum){
            return packageQueryStyle(orignal,title);
      }
      //按照数量分组
      if(spiltNum<=0){
            spiltNum = 1;
      }
      //ID分组
      StringBuffer totalBuilder = new StringBuffer();
      Pattern p = Pattern.compile("([0-9 ]+,){"+spiltNum+"}");//编译模式
       Matcher m = p.matcher(orignal);//产生匹配结果
      while(m.find()){//结果查找
            String matchersIDS = m.group();
            String apartIDS = " or " + packageQueryStyle(matchersIDS.substring(0, matchersIDS.length()-1),title);
            m.appendReplacement(totalBuilder, apartIDS);
      }
      StringBuffer lastIDS = m.appendTail(new StringBuffer());
      totalBuilder.append(" or "+packageQueryStyle(lastIDS.toString(),title));
      return "(" +totalBuilder.toString().replaceFirst("or", "") + ")";
}

private static String packageQueryStyle(String str,String title){
      return title+" in ("+str+")";
}

 

      //统计数量的2种方式，这里只统计符号，需要的话自己+1