Java随机生成身份证完整示例代码
身份证算法实现
1、号码的结构公民身份号码是特征组合码,
由十七位数字本体码和一位校验码组成。
排列顺序从左至右依次为:六位数字地址码,八位数字出生日期码 三位数字顺序码和一位数字校验码。
2、地址码(前六位数)表示编码对象常住户口所在县(市、旗、区)的行政区划代码,按GB/T2260的规定执行。
3、出生日期码(第七位至十四位)表示编码对象出生的年、月、日,按GB/T7408的规定执行,年、月、日代码之间不用分隔符。
4、顺序码(第十五位至十七位)
表示在同一地址码所标识的区域范围内,对同年、同月、同日出生的人编定的顺序号,顺序码的奇数分配给男性,偶数分配给女性。
5、校验码(第十八位数)
(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:7910584216379105842
(2)计算模Y=mod(S,11)
(3)通过模得到对应的校验码Y:01234567 8910
校验码:10X98765432
地址码(前六位数),我用了一个静态变量存储所有可能的城市,Cities类
classCities{ staticfinalintcities[]={ 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}; }
生成完整身份证号码:
publicclassStringUtils{ publicstaticStringgetIdNo(booleanmale){ //随机生成生日1~99岁 longbegin=System.currentTimeMillis()-3153600000000L;//100年内 longend=System.currentTimeMillis()-31536000000L;//1年内 longrtn=begin+(long)(Math.random()*(end-begin)); Datedate=newDate(rtn); SimpleDateFormatsimpleDateFormat=newSimpleDateFormat("yyyyMMdd"); Stringbirth=simpleDateFormat.format(date); returngetIdNo(birth,male); } publicstaticStringgetIdNo(Stringbirth,booleanmale){ StringBuildersb=newStringBuilder(); Randomrandom=newRandom(); intvalue=random.nextInt(Cities.cities.length); sb.append(Cities.cities[value]); sb.append(birth); value=random.nextInt(999)+1; if(male&&value%2==0){ value++; } if(!male&&value%2==1){ value++; } if(value>=100){ sb.append(value); }elseif(value>=10){ sb.append('0').append(value); }else{ sb.append("00").append(value); } sb.append(calcTrailingNumber(sb)); returnsb.toString(); } privatestaticfinalint[]calcC={7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2}; privatestaticfinalchar[]calcR={'1','0','X','9','8','7','6','5','4','3','2'}; /* *18位身份证验证
*根据〖中华人民共和国国家标准GB11643-1999〗中有关公民身份号码的规定,公民身份号码是特征组合码,由十七位数字本体码和一位数字校验码组成。 *排列顺序从左至右依次为:六位数字地址码,八位数字出生日期码,三位数字顺序码和一位数字校验码。 *第十八位数字(校验码)的计算方法为: *1.将前面的身份证号码17位数分别乘以不同的系数。从第一位到第十七位的系数分别为:7910584216379105842 *2.将这17位数字和系数相乘的结果相加。 *3.用加出来和除以11,看余数是多少? *4.余数只可能有012345678910这11个数字。其分别对应的最后一位身份证的号码为10X98765432。 *5.通过上面得知如果余数是2,就会在身份证的第18位数字上出现罗马数字的Ⅹ。如果余数是10,身份证的最后一位号码就是2。 */ privatestaticcharcalcTrailingNumber(StringBuildersb){ int[]n=newint[17]; intresult=0; for(inti=0;i总结
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