java 彩票走势图算法

一、算法介绍

本博文主要写了彩票走势图中的遗漏值、出现总次数、平均遗漏值、最大遗漏值、最大连出值的计算逻辑。

二、图文简介

[这是XX网双色球的彩票走势图，博主这里是将彩票数据分区展示，以双色球为例，分了五个区域，本博文中的遗漏值是按照期数的降序排列计算的如下图]

三、工具类简介（请仔细看完工具类简介）

彩票走势图的工具类**LotteryTrend**中将彩票的名称彩票的id，及其对应的数字域数据域id，每个区域的起始数字，每个区域的长度等数据按照顺序一一对应定义。另一个工具类**MissValue**就是彩票遗漏值的工具类，里面是具体的**彩票遗漏值、出现总次数、平均遗漏值、最大遗漏值、最大连出值**的计算方法，博主将开奖位置的遗漏值置为0，返给前端的。下面是这几个名词的定义：
**彩票遗漏值**：自上期开出到本期间隔的期数。
**出现总次数**：当前选定的彩票期数区间内该球的出现总次数。
**平均遗漏值**：平均遗漏值计算公式：总期数除以出现的总次数，如果总次数为0，该值为0；如果除不尽将计算结果向下取整。
**最大遗漏值**：历史开奖以来该球连续不出现的最大值，即为距离上次出现的间隔数的最大值。
**最大连出值**：**博主写的是选定期数内连续出现的最大值，与右图不符合**.

四、返回给前端的json数据

五、代码块

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;/*** 彩票走势图工具类* @author Administrator**/
public class LotteryTrend {//所有彩票名称数组public static final String[] titleArray={"超级大乐透","七星彩","排列三","排列五","双色球","福彩3D","江西11选5","11运夺金","广东11选5","上海11选5","浙江11选5","七乐彩","重庆时时彩","胜负彩","安徽快三","湖北快三","吉林快三","江苏快三","江苏11选5","浙江12选5"};//彩票的id数组public static final String[] lotteryidArray={"19","18","2","13","16","1","9","8","10","24","27","17","3","71","32","33","34","35","28","22"};//每种彩票的区域或者数字域public static final String[][] headArray={{"红一区","红二区","红三区","后区"},{"第七位","第六位","第五位","第四位","第三位","第二位","第一位"},{"百位","十位","个位"},{"万位","千位","百位","十位","个位"},{"红一区","红二区","红三区","篮球"},{"百位","十位","个位"},{"万位","千位","百位","十位","个位"},{"万位","千位","百位","十位","个位"},{"万位","千位","百位","十位","个位"},{"万位","千位","百位","十位","个位"},{"万位","千位","百位","十位","个位"},{"一区","二区","三区"},{"万位","千位","百位","十位","个位"},{"3","1","0"},{"百位","十位","个位"},{"百位","十位","个位"},{"百位","十位","个位"},{"百位","十位","个位"},{"万位","千位","百位","十位","个位"},{"万位","千位","百位","十位","个位"}};//区域或者数字域的idpublic static final String[][] idxArray ={{"area1","area2","area3","back"},{"num_info7","num_info6","num_info5","num_info4","num_info3","num_info2","num_info1"},{"num_info3","num_info2","num_info1"},{"num_info5","num_info4","num_info3","num_info2","num_info1"},{"area1","area2","area3","num_info7"},{"num_info3","num_info2","num_info1"},{"num_info5","num_info4","num_info3","num_info2","num_info1"},{"num_info5","num_info4","num_info3","num_info2","num_info1"},{"num_info5","num_info4","num_info3","num_info2","num_info1"},{"num_info5","num_info4","num_info3","num_info2","num_info1"},{"num_info5","num_info4","num_info3","num_info2","num_info1"},{"area1","area2","area3"},{"num_info5","num_info4","num_info3","num_info2","num_info1"},{"3","1","0"},{"num_info3","num_info2","num_info1"},{"num_info3","num_info2","num_info1"},{"num_info3","num_info2","num_info1"},{"num_info3","num_info2","num_info1"}, {"num_info5","num_info4","num_info3","num_info2","num_info1"},{"num_info5","num_info4","num_info3","num_info2","num_info1"}};//定义每个区域的起始数字public static final String[][] beginNum = {{"01","13","25","01"},{"0","0","0","0","0","0","0"},{"0","0","0"},{"0","0","0","0","0"},{"01","12","23","01"},{"0","0","0"},{"1","1","1","1","1"},{"1","1","1","1","1"},{"1","1","1","1","1"},{"1","1","1","1","1"},{"1","1","1","1","1"},{"01","11","21"},{"0","0","0","0","0"},{"1","1","1"},{"1","1","1"},{"1","1","1"},{"1","1","1"},{"1","1","1"}, {"1","1","1","1","1"},{"1","1","1","1","1"}};//定义每个区域的长度public static final int[][] horizontalSpans = {{12,12,11,12},{10,10,10,10,10,10,10},{10,10,10},{10,10,10,10,10},{11,11,11,16},{10,10,10},{11,11,11,11,11},{11,11,11,11,11},{11,11,11,11,11},{11,11,11,11,11},{11,11,11,11,11},{10,10,10},{10,10,10},{14,14,14},{6,6,6},{6,6,6},{6,6,6},{6,6,6}, {11,11,11,11,11},{12,12,12,12,12}};//是否需要两位，例如01或者1public static final String[] isHaveTwoPosition = {"1","0","0","0","1","0","0","0","0","0","0","1","0","0", "0","0","0","0","0","0"};//冷热public static final  String[][] codeAndHotIdxArray = {{"num_info1","num_info2","num_info3","num_info4","num_info5","num_info6","num_info7"},{"num_info1","num_info2","num_info3","num_info4","num_info5","num_info6","num_info7"},{"num_info1","num_info2","num_info3"},{"num_info3","num_info2","num_info1"},{"num_info1","num_info2","num_info3","num_info4","num_info5","num_info6","num_info7"},{"num_info3","num_info2","num_info1"},{"num_info1","num_info2","num_info3","num_info4","num_info5"},{"num_info1","num_info2","num_info3","num_info4","num_info5"},{"num_info1","num_info2","num_info3","num_info4","num_info5"},{"num_info1","num_info2","num_info3","num_info4","num_info5"},{"num_info1","num_info2","num_info3","num_info4","num_info5"},{"num_info1","num_info2","num_info3","num_info4","num_info5","num_info6","num_info7"},{"num_info3","num_info2","num_info1"},{},{"num_info1","num_info2","num_info3"},{"num_info1","num_info2","num_info3"},{"num_info1","num_info2","num_info3"},{"num_info1","num_info2","num_info3"},{"num_info1","num_info2","num_info3","num_info4","num_info5"},{"num_info1","num_info2","num_info3","num_info4","num_info5"}};//封装走势图所有的数据/*** list  数据库查询到的当前彩种开奖数据集合* issueCount  页面传来的指定的查看的总期数* totalIssue  当前开奖数据历史以来的总期数*/public static   Map<String,Object> trendInfo(List<Map<String,String>> list, String lotteryid, String idx,Integer issueCount,Integer totalIssue){int m=0,n=0,horizontalSpan=0;//m代表当前彩种在彩票id数组的位置；n代表要展示的区域(如红一区，后区等)或者数字域(百位，十位，各位等);horizontalSpan水平方向的跨度Map<String,Object> map = new LinkedHashMap<String, Object>();//封装返回数据的集合,包括alldiffs,average_omission,infolist,max_omission,max_output,placenum,result//获取mfor (int i = 0; i < lotteryidArray.length; i++) {if(lotteryidArray[i].equals(lotteryid)){m=i;break;}}//System.out.println("当前彩种在彩票id数组的位置:"+m);//获取nfor (int i = 0; i < idxArray[m].length; i++) {if(idxArray[i].equals(idx)){n=i;break;}}//System.out.println("要展示走势的当前彩票的区域:"+n);//获取水平跨度horizontalSpan =horizontalSpans[m][n];//封装开奖数据List<Map<String,String>> infolist =new ArrayList<>();if(issueCount<=totalIssue){for (int j = 0; j < issueCount; j++) {//封装每一条开奖数据String[] sp = list.get(j).get("result").replaceFirst("\\+", ",").split(",");Map<String,String> ma1  =  new LinkedHashMap<String, String>();//封装期号ma1.put("id", list.get(j).get("id"));//封装idma1.put("lottery_num", list.get(j).get("termNo"));//封装开奖号码for (int i = 0; i < codeAndHotIdxArray[m].length; i++) {ma1.put(codeAndHotIdxArray[m][i], sp[i]);}infolist.add(ma1);}}else{for (int j = 0; j < totalIssue; j++) {//封装每一条开奖数据String[] sp = list.get(j).get("result").replaceFirst("\\+", ",").split(",");Map<String,String> ma1  =  new LinkedHashMap<String, String>();//封装期号ma1.put("id", list.get(j).get("id"));//封装idma1.put("lottery_num", list.get(j).get("termNo"));//封装开奖号码for (int i = 0; i < codeAndHotIdxArray[m].length; i++) {ma1.put(codeAndHotIdxArray[m][i], sp[i]);}infolist.add(ma1);}}map.put("infolist", infolist);//转换数据格式List<List<Integer>> convertList = MissingValue.convertAwardData(list);//获得当前彩种的所有遗漏值数据int[][] alldiff_totalIssue = MissingValue.getMissingvalue(convertList,Integer.parseInt(beginNum[m][n]), totalIssue, horizontalSpan);//获得当前彩种的指定期的遗漏值数据int[][] alldiffs  = null;if(issueCount<=totalIssue){alldiffs  =  new int[issueCount][horizontalSpan];for (int i =0; i <alldiffs.length; i++) {for (int j =0;j<horizontalSpan;j++) {alldiffs[i][j]=alldiff_totalIssue[i][j];}}}else{alldiffs  =  new int[totalIssue][horizontalSpan];for (int i =0; i <alldiffs.length; i++) {for (int j =0;j<horizontalSpan;j++) {alldiffs[i][j]=alldiff_totalIssue[i][j];}}}map.put("alldiffs", alldiffs);//出现总次数List<Integer> placenum = MissingValue.getTotal(alldiffs);//平均遗漏值List<Integer> average_omission = null;if(issueCount<=totalIssue){average_omission = MissingValue.getCoverage(placenum, issueCount);}else{average_omission = MissingValue.getCoverage(placenum, totalIssue);}//最大遗漏值List<Integer> max_omission = MissingValue.getMax(alldiff_totalIssue);//最大连出值List<Integer> max_output = MissingValue.getContinuous(alldiffs);map.put("max_output", max_output);map.put("placenum", placenum);map.put("average_omission", average_omission);map.put("max_omission", max_omission);return map;}//封装冷热的数据public static   Map<String,Object>  saveColoHot(List<Map<String,String>> list, String lotteryid, String idx,Integer issueCount,Integer totalIssue){int m=0,n=0;//m代表当前彩种在彩票id数组的位置,n代表冷热的区域Map<String,Object> map = new LinkedHashMap<String, Object>();//封装返回数据的集合,包括alldiffs,average_omission,infolist,max_omission,max_output,placenum,result//获取mfor (int i = 0; i < lotteryidArray.length; i++) {if(lotteryidArray[i].equals(lotteryid)){m=i;break;}}//获取nfor (int i = 0; i < codeAndHotIdxArray[m].length; i++) {if(codeAndHotIdxArray[i].equals(idx)){n=i;break;}}//获取开奖数据List<List<String>> infolist =new ArrayList<>();if(issueCount<=totalIssue){for (int j = 0; j < issueCount; j++) {//封装每一条开奖数据String[] sp = list.get(j).get("result").replaceFirst("\\+", ",").split(",");List<String> li  =  new ArrayList<>();//封装开奖号码for (int i = 0; i <sp.length ; i++) {li.add(sp[i]);}infolist.add(li);}}else{for (int j = 0; j < totalIssue; j++) {//封装每一条开奖数据String[] sp = list.get(j).get("result").replaceFirst("\\+", ",").split(",");List<String> li  =  new ArrayList<>();//封装开奖号码for (int i = 0; i <sp.length ; i++) {li.add(sp[i]);}infolist.add(li);}}List<LinkedHashMap<String, String>> placenum = getColdHot(infolist, idx, n);map.put("placenum", placenum);map.put("result", "success");return map;}//获得冷热的数据public static List<LinkedHashMap<String,String>> getColdHot(List<List<String>> infolist,String idx,Integer n){List<LinkedHashMap<String,String>> list= new ArrayList<>();//对出现的次数做降序排列Map<String,Integer> map =  new HashMap<>();for (int i = 0; i < infolist.size(); i++) {if(map.containsKey(infolist.get(i).get(n))){map.put(infolist.get(i).get(n), map.get(infolist.get(i).get(n))+1);}else{map.put(infolist.get(i).get(n), 1);}}List<Entry<String, Integer>> sortMap = sortMap(map);//封装冷热图的数据for(Entry<String,Integer> entry :sortMap){String key = entry.getKey();   Integer value = entry.getValue();BigDecimal b1 = new BigDecimal(Double.toString(value*100));   BigDecimal b2 = new BigDecimal(Double.toString(infolist.size())); double countunm = b1.divide(b2,2,BigDecimal.ROUND_HALF_UP).doubleValue();LinkedHashMap<String,String> lhm =  new LinkedHashMap<>();lhm.put(idx, key);lhm.put("countid", value+"");String countunm1 =String.valueOf(countunm);if((countunm1.split("\\.")[1]).length()==1){//此情况代表countunm是整数，小数点后面只有一个0，为满足数据(数据格式:xx.yy00)封装要求，要添加三个0lhm.put("countunm", countunm1+"000");}else{lhm.put("countunm", countunm1+"00");}list.add(lhm);}return list;}//对map集合value实现降序排列public static List<Map.Entry<String, Integer>> sortMap(Map<String, Integer> map){//获取entrySetSet<Map.Entry<String,Integer>> mapEntries = map.entrySet();//使用链表来对集合进行排序，使用LinkedList，利于插入元素List<Map.Entry<String, Integer>> result = new LinkedList<>(mapEntries);//自定义比较器来比较链表中的元素Collections.sort(result, new Comparator<Entry<String, Integer>>() {//基于entry的值（Entry.getValue()），来排序链表@Overridepublic int compare(Entry<String, Integer> o1,Entry<String, Integer> o2) {return o2.getValue().compareTo(o1.getValue()) ;}});//将排好序的存入到LinkedHashMap(可保持顺序)中，需要存储键和值信息对到新的映射中。Map<String,Integer> linkMap = new LinkedHashMap<>();for(Entry<String,Integer> newEntry :result){linkMap.put(newEntry.getKey(), newEntry.getValue());            }/*//根据entrySet()方法遍历linkMapfor(Map.Entry<String, Integer> mapEntry : linkMap.entrySet()){System.out.println("key:"+mapEntry.getKey()+"  value:"+mapEntry.getValue());}*/return result;}
}

====================华丽丽里的分割线=========================

import java.util.ArrayList;
import java.util.List;
import java.util.Map;/*** @admistrator * 计算遗漏值的工具类* */
public class MissingValue {/*** 获取整个区域的遗漏值* lis 开奖数据的集合（从数据查询到的开奖数据集合）* row 行数* column 列数*/public static int[][] getMissingvalue(List<List<Integer>> lis,Integer beginNum ,Integer row ,Integer horizontalSpan){int[][] arr = new int[row][horizontalSpan];//获取整个区域的遗漏值for (int k =1 ; k <=horizontalSpan ; k++) {//获取每期开奖数据在当前列的位置List<Integer> countList= new ArrayList<Integer>();for (int i = 0; i <=lis.size()-1; i++) {for (int j = 0; j <lis.get(i).size() ; j++) {if(lis.get(i).get(j)>beginNum+horizontalSpan-1){break;}if(lis.get(i).get(j)==k){countList.add(i);//记录当前列的开奖号码的行号}}}if(countList.size()!=0 && countList!=null){int[] arrj=getOthers(countList,arr.length);for (int j = 0; j < arrj.length; j++) {arr[j][k-1]=arrj[j];}}else{for (int j = arr.length-1; j >=0; j--) {arr[j][k-1]=arr.length-j;}}}return arr;}//获取每列的遗漏值数据public static  int[]  getOthers(List<Integer> list,int row){int[] array=new int[row];int n =0;while(true){if(list.size()==1){if(list.get(n)==0){//中奖号码只有一个且在顶部array[n]=0;for (int i = array.length-1; i >0; i--) {array[i]=array.length-i;}}else if(list.get(n)==row-1){//中奖号码只有一个且在底部for (int i = list.get(n); i >=0; i--) {array[i]=list.get(n)-i;}}else if(list.get(n)>0 && list.get(n)<row-1){//中奖号码只有一个且在中间for (int i = array.length-1; i >list.get(n); i--) {array[i]=array.length-i;}for (int i = list.get(n); i >=0; i--) {array[i]=list.get(n)-i;}}}else if(list.size()>1){if(n==0){//第1个开奖号码if(list.get(n)==0){//当前中奖号码在顶部array[n]=0;}else if(list.get(n)<row-1){//当前号码在中间for (int i = list.get(n); i >=0; i--) {array[i]=list.get(n)-i;}}}else if(n+1<list.size() && n>0){//当前为第n+1个开奖号码,而且不是最后一个,那么当前号码一定在中间if(list.get(n)-list.get(n-1)-1!=0){//开奖号码有间隔for (int i = list.get(n); i >list.get(n-1); i--) {array[i]=list.get(n)-i;}}else{//开奖号码没有间隔array[list.get(n)]=0;}}else if(n+1==list.size() && n>0){//当前开奖号码为这一列的最后一个开奖号码if(list.get(n)-list.get(n-1)-1>0){//开奖号码有间隔if(list.get(n)==row-1){//当前中奖号码在底部for (int i = list.get(n); i >list.get(n-1); i--) {array[i]=list.get(n)-i;}}else if(list.get(n)<row-1){//当前号码在中间for (int i = list.get(n); i >list.get(n-1); i--) {array[i]=list.get(n)-i;}for (int i = array.length-1; i >=list.get(n)+1; i--) {array[i]=array.length-i;}}}else if(list.get(n)-list.get(n-1)-1==0){//开奖号码没有间隔if(list.get(n)==row-1){//当前中奖号码在底部array[list.get(n)]=0;}else if(list.get(n)<row-1){//当前号码在中间array[list.get(n)]=0;for (int i = array.length-1; i >list.get(n); i--) {array[i]=array.length-i;}}}break;}}if(n==list.size()-1){break;}n++;}return array;}/*** 处理开奖数据的方法* 实现的功能：将每一期在当前区域的开奖数据获取出来，并转换为int 类型* lis 开奖数据的集合*/public static List<List<Integer>> convertAwardData(List<Map<String,String>> lis){List<List<Integer>> list = new ArrayList<>();for (int i = 0; i < lis.size(); i++) {List<Integer> lii = new ArrayList<>();String[] sp = lis.get(i).get("result").replaceFirst("\\+", ",").split(",");for (int j = 0; j < sp.length; j++) {lii.add(Integer.parseInt(sp[j]));}list.add(lii);}return list;}/*** 计算每列开奖的总次数（即：出现总次数）** arr 遗漏值数据的数组*/public static List<Integer> getTotal(int[][] arr){List<Integer> list = new ArrayList<>();for (int i = 0; i < arr[0].length; i++) {int count = 0;for (int j = 0; j < arr.length; j++) {if(arr[j][i]==0){count++;}}list.add(count);}return list;}/*** 计算平均遗漏值** lis 出现总次数集合* row  总行数*/public static List<Integer> getCoverage(List<Integer> lis ,Integer row){List<Integer> list = new ArrayList<>();for (int i = 0; i < lis.size(); i++) {if(lis.get(i)!=0){list.add(row/lis.get(i));}else{list.add(0);}}return list;}/*** 计算最大遗漏值** arr 遗漏值的集合* */public static List<Integer> getMax(int[][] arr){List<Integer> ll =  new ArrayList<Integer>();for (int i = 0; i < arr[0].length; i++) {int max=arr[0][i];for (int j = 0; j < arr.length; j++) {if(arr[j][i]>max)max=arr[j][i];}ll.add(max);}return ll;}/*** 计算最大连出值** arr 遗漏值的集合*/public static List<Integer> getContinuous(int[][] arr){List<Integer> list = new ArrayList<>();for (int i = 0; i < arr[0].length; i++) {StringBuilder sb = new StringBuilder();for (int j = 0; j < arr.length; j++) {sb.append(arr[j][i]);}list.add(max(sb.toString()));}return list;}//统计相同字符连续出现的最大子序列的长度public static int max(String s){  int max=0,tmp_m=1;for(int i=1;i<s.length();i++){  if(s.charAt(i)==s.charAt(i-1)){  tmp_m++;  }else{  max=max>tmp_m?max:tmp_m;  tmp_m=1;  }  }  max=max>tmp_m?max:tmp_m;//最后的连续数与最大连续的比较  return max;}
}

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