80秒验证13亿个身份证号码，包含省市县验证
2024-05-22 14:53:54
我写了一个验证身份证号码的程序，它是以一定内存空间（大概100M)换取cpu消耗，然后它的运算量就降低了，前十四位的验证就相当于转换类型再查表一样，所以它的验证号码速度比一般的方式快。如果还不明白就说明你写框架写多了，或者你不了解java基础。测试结果只代表算法效率，测一个号码是因为正确号码运算次数基本相同，如果你们用自己的电脑测，13亿次循环应该不到1分钟。这种设计思路，也可以套用其他格式信息验证上去。
先说一下具体思路：首先，身份证号的前6位是全国行政区划代码（就是省市县连起来的代码），我就把国家统计局的2004-2013年的全部代码拿过来，用程序分析，除掉五六位为00的，总共3000+，为了以尽量少的方式存放在代码里，我就用程序分析出每个不间断的序列，首尾成对地存放在数组里面，如110111,110118 表示110111到1101117，然后用布尔数组存储到对应下标，有这个代码，对应下标为true。然后年月日也是这个原理，先用循环生成所有的日期的可能性然后把值减去19000101（就是上一个百年虫日期），用样存放到布尔数组里面。最后验证校验码以及前17位是否为数字，18位是否为数字或者X。
再说一下身份证校验码，第18位的校验方法：
（1）十七位数字本体码加权求和
公式 S = Sum(Ai * Wi), i = 0, ... , 16 ，先对前17位数字的权求和
Ai:表示第i位置上的身份证号码数字值
Wi:表示第i位置上的加权因子
Wi: 7 9 10 5 8 4 2 1 6 3 7 9 10 5 8 4 2
（2）计算模 Y = mod(S, 11)
（3）通过模得到对应的校验码
Y: 0 1 2 3 4 5 6 7 8 9 10
校验码: 1 0 X 9 8 7 6 5 4 3 2
这个用循环就能做到了。
另外，用switch-case语句比if-esle快，这大概都知道吧。
然后说一下数据查询效率，方式有：数组位图（array),BitSet,二分法，HashSet
查询时间：array≈bitSet <二分法 <HashSet
空间消耗：bitSet>array >二分法 >HashSet
所以我用array存储数据做查询，然后运行效率大概就是 在i3本子上面100秒查完全国人民的身份证号码。
今天把循环去掉，换成最基本的运算式子，结果为80秒执行完13亿次验证，但是越高效的代码越不人性化。
请不要讨论连接公安网数据库问题，因为这个程序起的作用是高速过滤器，验证通过再查询数据库，不通过就滤掉了。更不要说查询一次数据库比几十次整点运算快，它们是两个层面的，如果硬要比的话，对于一个身份证号码来说，查询数据库肯定比cpu运行几十次整点运算慢的多，而且差几个数量级
1. [代码]IdCardValidator.java
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/**
* @Company asiainfo-linkage
* @author WANGDENG
*/
public class IdCardValidator {
private static final IdCardValidator VALIDATOR=new IdCardValidator(); //单例常量
private static final boolean[] regions=new boolean[659005];//存放所有省市县数据
private static final boolean[] dates = new boolean[20141231-19000100];//存放1900年至2014年12月31日日期数据
private static final String verifyLastData="10X98765432";//最后一位校验成功对应字符的序列
private static final int[] last=new int[41];// 身份证最后一位号码校验
// private static final int[] WI = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10,5, 8, 4, 2 };//最后一位校验因子
public static IdCardValidator getInstance(){//返回单例
return VALIDATOR;
}
/**
* 用于生成某年某月对应天数
* @param year
* @param month
* @return
*/
private static int daysInMonth(int year, int month) {
int daysInMonth;
switch (month) {
case 1: case 3: case 5:
case 7: case 8: case 10:
case 12:
daysInMonth = 31;
break;
case 2:
if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) {//闰年
daysInMonth = 29;
} else {
daysInMonth = 28;
}
break;
default:
daysInMonth = 30;
}
return daysInMonth;
}
/**
* 重载方法，用于校验带性别信息的身份证号码
* @param idCard
* @param isMale
* @return
*/
public boolean isValid(String idCard,boolean isMale){
return isValid(idCard)&&(idCard.charAt(16)%2==0^isMale);
}
/**
* 校验身份证号码的方法，这个看不懂看下面注释掉的，原理一样。
* @param idCard
* @return
* 校验因子为：{ 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10,5, 8, 4, 2 };
*/
public boolean isValid(String idCard) {
if (null == idCard || idCard.length() != 18)
return false; // 验证长度
int sum = 0, regionCode = 0, dateCode = 0;
char[] arr = idCard.toCharArray();
//计算与校验码对应的值'0'对应ASCII值为48，校验因子总和100.
sum = arr[0] * 7 + arr[1] * 9 + arr[2] * 10 + arr[3] * 5
+ arr[4] * 8 + arr[5] * 4 + arr[6] * 2 + arr[7] * 1
+ arr[8] * 6 + arr[9] * 3 + arr[10]* 7 + arr[11] * 9
+ arr[12]*10 + arr[13]* 5+ arr[14]* 8 + arr[15] * 4
+ arr[16] * 2 - 4800;
//验证前17位为数字，第18位为X或数字
if (arr[0] > 57 || arr[1] > 57 || arr[2] > 57 || arr[3] > 57
|| arr[4] > 57 || arr[5] > 57 || arr[6] > 57 || arr[7] > 57
|| arr[8] > 57 || arr[9] > 57 || arr[10] > 57 || arr[11] > 57
|| arr[12] > 57 || arr[13] > 57 || arr[14] > 57 || arr[15] > 57
|| arr[16] > 57 || arr[0] < 48 || arr[1] < 48 || arr[2] < 48
|| arr[3] < 48 || arr[4] < 48 || arr[5] < 48 || arr[6] < 48
|| arr[7] < 48 || arr[8] < 48 || arr[9] < 48 || arr[10] < 48
|| arr[11] < 48 || arr[12] < 48 || arr[13] < 48 || arr[14] < 48
|| arr[15] < 48 || arr[16] < 48 ||(arr[17]< 88 && arr[17] > 57)
|| arr[17] < 48 || arr[17] > 88)
return false;
// 验证第18位校验码
if (sum % 11 != last[arr[17] - 48])
return false;
//获取省市县片段，5333328=111111*48
regionCode = arr[0] * 100000 + arr[1] * 10000 + arr[2] * 1000
+ arr[3] * 100 + arr[4] * 10 + arr[5]-5333328;
//获取日期片段 552333429=11111111*48+19000101
dateCode = arr[6] * 10000000 + arr[7] * 1000000 + arr[8] * 100000
+ arr[9] * 10000 + arr[10] * 1000 + arr[11] * 100
+ arr[12]* 10 + arr[13]-552333429;
return regions[regionCode]&&dates[dateCode];//最后校验省市县和日期
}
// public boolean isValid(String idCard){
// if (null == idCard || idCard.length() != 18)return false; //验证长度
// int a = 0, sum = 0,regionCode=0,dateCode=0;
// char[] arr=idCard.toCharArray();
// for (int i = 0; i < 17; i++) {
// a = arr[i] - 48;if (a >10 || a < 0)return false; //验证前17位为数字
// sum =sum+ WI[i] * a; //计算校验值
// switch(i){
// case 0:case 1:case 2:case 3:case 4: //快速找到对应条件
// case 5:regionCode=regionCode*10+a;break; //获取省市县片段
// case 6:case 7:case 8:case 9:case 10:
// case 11:case 12:case 13:dateCode=dateCode*10+a;break;//获取日期片段
// default: break;
// }
// }
// a = arr[17]-48; //获取第18为数字
// if(sum % 11!=last[a])return false; // 验证第18位校验码
// if (!(a==40||a < 10 && a > 0))return false; // 验证第18位为数字或X
// return regions[regionCode]&&dates[dateCode-19000101];//最后校验省市县和日期
// }
public static void main(String[] args) {//测试
long t1=System.currentTimeMillis();
for(int i=0;i<1300000000;i++)
IdCardValidator.getInstance().isValid("36062219800101325X");
long t2=System.currentTimeMillis();
System.out.println("方法耗时"+(t2-t1)/1000+"秒");
}
static {
for(int j=0,len=verifyLastData.length();j<len;j++)last[verifyLastData.charAt(j)-48]= j;
for (int year = 1900; year < 2015; year++) {//日期数据加载
for (int month = 1; month <= 12; month++) {
for (int day = 1; day <= daysInMonth(year, month); day++) {
dates[year*10000+month*100+day-19000101]=true;
}
}
}
int[] regionArray={//省市县压缩后数据
110101,110110,110111,110118,110228,110230,120101,120117,
120221,120222,120223,120224,120225,120226,130101,130106,130107,130109,
130121,130122,130123,130134,130181,130186,130201,130206,130207,130210,
130223,130226,130227,130228,130229,130231,130281,130282,130283,130284,
130301,130305,130321,130325,130401,130405,130406,130407,130421,130422,
130423,130436,130481,130482,130501,130504,130521,130536,130581,130583,
130601,130605,130621,130639,130681,130685,130701,130704,130705,130707,
130721,130734,130801,130805,130821,130829,130901,130904,130921,130931,
130981,130985,131001,131004,131022,131027,131028,131029,131081,131083,
131101,131103,131121,131129,131181,131183,140101,140102,140105,140111,
140121,140124,140181,140182,140201,140204,140211,140213,140221,140228,
140301,140304,140311,140312,140321,140323,140401,140403,140411,140412,
140421,140422,140423,140432,140481,140482,140501,140503,140521,140523,
140524,140526,140581,140582,140601,140604,140621,140625,140701,140703,
140721,140730,140781,140782,140801,140803,140821,140831,140881,140883,
140901,140903,140921,140933,140981,140982,141001,141003,141021,141035,
141081,141083,141101,141103,141121,141131,141181,141183,150101,150106,
150121,150126,150201,150208,150221,150224,150301,150305,150401,150405,
150421,150427,150428,150431,150501,150503,150521,150527,150581,150582,
150601,150603,150621,150628,150701,150703,150721,150728,150781,150786,
150801,150803,150821,150827,150901,150903,150921,150930,150981,150982,
152201,152203,152221,152225,152501,152503,152522,152532,152921,152924,
210101,210107,210111,210115,210122,210125,210181,210182,210201,210205,
210211,210214,210224,210225,210281,210284,210301,210305,210311,210312,
210321,210322,210323,210324,210381,210382,210401,210405,210411,210412,
210421,210424,210501,210506,210521,210523,210601,210605,210624,210625,
210681,210683,210701,210704,210711,210712,210726,210728,210781,210783,
210801,210805,210811,210812,210881,210883,210901,210906,210911,210912,
210921,210923,211001,211006,211011,211012,211021,211022,211081,211082,
211101,211104,211121,211123,211201,211203,211204,211205,211221,211222,
211223,211225,211281,211283,211301,211304,211321,211323,211324,211325,
211381,211383,211401,211405,211421,211423,211481,211482,220101,220107,
220112,220113,220122,220123,220181,220184,220201,220205,220211,220212,
220221,220222,220281,220285,220301,220304,220322,220324,220381,220383,
220401,220404,220421,220423,220501,220504,220521,220522,220523,220525,
220581,220583,220601,220603,220604,220606,220621,220624,220625,220626,
220681,220682,220701,220703,220721,220725,220801,220803,220821,220823,
220881,220883,222401,222407,222424,222425,222426,222427,230101,230105,
230106,230113,230123,230130,230181,230185,230201,230209,230221,230222,
230223,230226,230227,230228,230229,230232,230281,230282,230301,230308,
230321,230322,230381,230383,230401,230408,230421,230423,230501,230504,
230505,230507,230521,230525,230601,230607,230621,230625,230701,230717,
230722,230723,230781,230782,230801,230806,230811,230812,230822,230823,
230826,230827,230828,230829,230833,230834,230881,230883,230901,230905,
230921,230922,231001,231006,231024,231026,231081,231082,231083,231086,
231101,231103,231121,231122,231123,231125,231181,231183,231201,231203,
231221,231227,231281,231284,232701,232705,232721,232724,310101,310102,
310103,310111,310112,310121,310230,310231,320101,320108,320111,320112,
320113,320117,320124,320126,320201,320207,320211,320212,320281,320283,
320301,320306,320311,320313,320321,320325,320381,320383,320401,320403,
320404,320406,320411,320413,320481,320483,320501,320510,320581,320586,
320601,320603,320611,320613,320621,320622,320623,320624,320681,320685,
320701,320702,320703,320704,320705,320707,320721,320725,320801,320805,
320811,320812,320826,320827,320829,320832,320901,320904,320921,320926,
320981,320983,321001,321004,321011,321013,321023,321024,321081,321082,
321084,321085,321088,321089,321101,321103,321111,321113,321181,321184,
321201,321204,321281,321285,321301,321303,321311,321312,321322,321325,
330101,330107,330108,330111,330122,330123,330127,330128,330182,330184,
330185,330186,330201,330202,330203,330207,330211,330213,330225,330227,
330281,330284,330301,330305,330322,330323,330324,330325,330326,330330,
330381,330383,330401,330403,330411,330412,330421,330422,330424,330425,
330481,330484,330501,330504,330521,330524,330601,330603,330621,330622,
330624,330625,330681,330684,330701,330704,330723,330724,330726,330728,
330781,330785,330801,330804,330822,330823,330824,330826,330881,330882,
330901,330904,330921,330923,331001,331005,331021,331025,331081,331083,
331101,331103,331121,331128,331181,331182,340101,340105,340111,340112,
340121,340125,340181,340182,340201,340205,340207,340209,340221,340224,
340225,340226,340301,340305,340311,340312,340321,340324,340401,340407,
340421,340422,340501,340505,340506,340507,340521,340524,340601,340605,
340621,340622,340701,340704,340711,340712,340721,340722,340801,340804,
340811,340812,340822,340829,340881,340882,341001,341005,341021,341025,
341101,341104,341122,341123,341124,341127,341181,341183,341201,341205,
341221,341223,341225,341227,341282,341283,341301,341303,341321,341325,
341401,341403,341421,341425,341501,341504,341521,341526,341601,341603,
341621,341624,341701,341703,341721,341724,341801,341803,341821,341826,
341881,341882,350101,350106,350111,350112,350121,350126,350128,350129,
350181,350183,350201,350202,350203,350204,350205,350207,350211,350214,
350301,350306,350322,350323,350401,350404,350421,350422,350423,350431,
350481,350482,350501,350506,350521,350522,350524,350528,350581,350584,
350601,350604,350622,350630,350681,350682,350701,350703,350721,350726,
350781,350785,350801,350803,350821,350826,350881,350882,350901,350903,
350921,350927,350981,350983,360101,360106,360111,360112,360121,360125,
360201,360204,360222,360223,360281,360282,360301,360303,360313,360314,
360321,360324,360401,360404,360421,360422,360423,360431,360481,360483,
360501,360503,360521,360522,360601,360603,360622,360623,360681,360682,
360701,360703,360721,360736,360781,360783,360801,360804,360821,360831,
360881,360882,360901,360903,360921,360927,360981,360984,361001,361003,
361021,361031,361101,361103,361121,361131,361181,361182,370101,370106,
370112,370114,370124,370127,370181,370182,370201,370204,370205,370206,
370211,370215,370281,370286,370301,370307,370321,370324,370401,370407,
370481,370482,370501,370504,370521,370524,370601,370603,370611,370614,
370634,370635,370681,370688,370701,370706,370724,370726,370781,370787,
370801,370803,370811,370812,370826,370833,370881,370884,370901,370904,
370911,370912,370921,370922,370923,370924,370982,370984,371001,371003,
371081,371084,371101,371104,371121,371123,371201,371204,371301,371303,
371311,371313,371321,371330,371401,371403,371421,371429,371481,371483,
371501,371503,371521,371527,371581,371582,371601,371603,371621,371627,
371701,371703,371721,371729,410101,410107,410108,410109,410122,410123,
410181,410186,410201,410206,410211,410212,410221,410226,410301,410308,
410311,410312,410322,410330,410381,410382,410401,410405,410411,410412,
410421,410424,410425,410426,410481,410483,410501,410504,410505,410507,
410522,410524,410526,410528,410581,410582,410601,410604,410611,410612,
410621,410623,410701,410705,410711,410712,410721,410722,410724,410729,
410781,410783,410801,410805,410811,410812,410821,410824,410825,410826,
410881,410884,410901,410903,410922,410924,410926,410929,411001,411003,
411023,411026,411081,411083,411101,411105,411121,411123,411201,411203,
411221,411223,411224,411225,411281,411283,411301,411304,411321,411331,
411381,411382,411401,411404,411421,411427,411481,411482,411501,411504,
411521,411529,411601,411603,411621,411629,411681,411682,411701,411703,
411721,411730,419001,419002,420101,420108,420111,420118,420201,420206,
420222,420223,420281,420282,420301,420304,420321,420326,420381,420382,
420501,420507,420525,420530,420581,420584,420601,420603,420606,420608,
420624,420627,420682,420685,420701,420705,420801,420803,420804,420805,
420821,420823,420881,420882,420901,420903,420921,420924,420981,420983,
420984,420985,421001,421004,421022,421025,421081,421082,421083,421084,
421087,421088,421101,421103,421121,421128,421181,421183,421201,421203,
421221,421225,421281,421282,421301,421304,421321,421322,421381,421382,
422801,422803,422822,422824,422825,422829,429004,429007,429021,429022,
430101,430106,430111,430113,430121,430123,430124,430125,430181,430182,
430201,430205,430211,430212,430221,430222,430223,430226,430281,430282,
430301,430303,430304,430305,430321,430322,430381,430383,430401,430402,
430405,430409,430412,430413,430421,430425,430426,430427,430481,430483,
430501,430504,430511,430512,430521,430526,430527,430530,430581,430582,
430601,430604,430611,430612,430621,430622,430623,430625,430626,430627,
430681,430683,430701,430704,430721,430727,430781,430782,430801,430803,
430811,430812,430821,430823,430901,430904,430921,430924,430981,430982,
431001,431004,431021,431029,431081,431082,431101,431104,431121,431130,
431201,431203,431221,431231,431281,431282,431301,431303,431321,431323,
431381,431383,433101,433102,433122,433128,433130,433131,440101,440108,
440111,440117,440183,440185,440201,440202,440203,440206,440222,440223,
440224,440225,440229,440230,440232,440234,440281,440283,440301,440302,
440303,440309,440401,440405,440501,440502,440507,440508,440511,440516,
440523,440524,440601,440602,440604,440609,440701,440702,440703,440706,
440781,440782,440783,440786,440801,440805,440811,440812,440823,440824,
440825,440826,440881,440884,440901,440904,440923,440924,440981,440984,
441201,441204,441223,441227,441283,441285,441301,441304,441322,441325,
441401,441403,441421,441425,441426,441428,441481,441482,441501,441503,
441521,441522,441523,441524,441581,441582,441601,441603,441621,441626,
441701,441703,441721,441722,441723,441724,441781,441782,441801,441803,
441821,441822,441823,441824,441825,441828,441881,441883,445101,445103,
445121,445123,445201,445203,445221,445223,445224,445225,445281,445282,
445301,445303,445321,445324,445381,445382,450101,450104,450105,450106,
450107,450110,450122,450128,450201,450206,450221,450227,450301,450306,
450311,450312,450321,450333,450401,450402,450403,450406,450421,450424,
450481,450482,450501,450504,450512,450513,450521,450522,450601,450604,
450621,450622,450681,450682,450701,450704,450721,450723,450801,450805,
450821,450822,450881,450882,450901,450903,450921,450925,450981,450982,
451001,451003,451021,451032,451101,451103,451121,451124,451201,451203,
451221,451230,451281,451282,451301,451303,451321,451325,451381,451382,
451401,451403,451421,451426,451481,451482,460101,460102,460105,460109,
460201,460202,460321,460324,469001,469004,469005,469008,469021,469040,
500101,500120,500222,500239,500240,500244,500381,500385,510101,510102,
510104,510109,510112,510116,510121,510123,510124,510125,510129,510130,
510131,510133,510181,510185,510301,510305,510311,510312,510321,510323,
510401,510404,510411,510412,510421,510423,510501,510505,510521,510523,
510524,510526,510601,510602,510603,510604,510623,510624,510626,510627,
510681,510684,510701,510702,510703,510705,510722,510728,510781,510782,
510801,510803,510811,510813,510821,510825,510901,510902,510903,510905,
510921,510924,511001,511003,511011,511012,511024,511026,511028,511029,
511101,511103,511111,511114,511123,511125,511126,511127,511129,511130,
511132,511134,511181,511182,511301,511305,511321,511326,511381,511382,
511401,511403,511421,511426,511501,511504,511521,511530,511601,511603,
511621,511624,511681,511682,511701,511703,511721,511726,511781,511782,
511801,511804,511821,511828,511901,511903,511921,511924,512001,512003,
512021,512023,512081,512082,513221,513234,513321,513339,513401,513402,
513422,513438,520101,520104,520111,520115,520121,520124,520181,520182,
520201,520202,520203,520204,520221,520223,520301,520304,520321,520331,
520381,520383,520401,520403,520421,520426,520501,520503,520521,520528,
520601,520604,520621,520629,522201,522202,522222,522231,522301,522302,
522322,522329,522401,522402,522422,522429,522601,522602,522622,522637,
522701,522703,522722,522724,522725,522733,530101,530104,530111,530115,
530121,530123,530124,530130,530181,530182,530301,530303,530321,530327,
530328,530329,530381,530382,530401,530403,530421,530429,530501,530503,
530521,530525,530601,530603,530621,530631,530701,530703,530721,530725,
530801,530803,530821,530830,530901,530903,530921,530928,532301,532302,
532322,532330,532331,532332,532501,532504,532522,532533,532601,532602,
532621,532629,532801,532802,532822,532824,532901,532902,532922,532933,
533102,533104,533122,533125,533321,533322,533323,533326,533421,533424,
540101,540103,540121,540128,542121,542130,542132,542134,542221,542230,
542231,542234,542301,542302,542322,542339,542421,542431,542521,542528,
542621,542628,610101,610105,610111,610117,610122,610123,610124,610127,
610201,610205,610222,610223,610301,610305,610322,610325,610326,610332,
610401,610405,610422,610432,610481,610482,610501,610503,610521,610529,
610581,610583,610601,610603,610621,610633,610701,610703,610721,610731,
610801,610803,610821,610832,610901,610903,610921,610930,611001,611003,
611021,611027,620101,620106,620111,620112,620121,620124,620201,620202,
620301,620303,620321,620322,620401,620404,620421,620424,620501,620504,
620521,620526,620601,620603,620621,620624,620701,620703,620721,620726,
620801,620803,620821,620827,620901,620903,620921,620925,620981,620983,
621001,621003,621021,621028,621101,621103,621121,621127,621201,621203,
621221,621229,622901,622902,622921,622928,623001,623002,623021,623028,
630101,630106,630121,630124,632121,632124,632126,632129,632221,632225,
632321,632325,632521,632526,632621,632627,632721,632727,632801,632803,
632821,632824,640101,640102,640104,640107,640121,640123,640181,640182,
640201,640203,640205,640206,640221,640222,640301,640304,640323,640325,
640381,640382,640401,640403,640422,640426,640501,640503,640521,640523,
650101,650110,650121,650122,650201,650206,652101,652102,652122,652124,
652201,652202,652222,652224,652301,652304,652323,652326,652327,652329,
652701,652702,652722,652724,652801,652802,652822,652830,652901,652902,
652922,652930,653001,653002,653022,653025,653101,653102,653121,653132,
653201,653202,653221,653228,654002,654004,654021,654029,654201,654203,
654221,654222,654223,654227,654301,654302,654321,654327,659001,659005};
for(int i=0,len=regionArray.length/2;i<len;i++){
for(int j=regionArray[2*i];j<regionArray[2*i+1];j++)//压缩的省市县数据解压
regions[j]=true;
}
}
}
|
2. [图片] IdCardValid.JPG
80秒验证13亿个身份证号码，包含省市县验证相关推荐
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