我需要验证 j的zi。 我 go,经常说几句。
我面临的问题是,从某些行政环境页起,可能需要的手法模式可能发生变化。 和在某些情况下一样,我们可能需要用户以三十-三十格式加入(XXXXXX) 或可能是(XXXXXX) 等。
在某些情况下,血压法只能包括数字,有时是甲型数字。
请提供帮助。
我需要验证 j的zi。 我 go,经常说几句。
我面临的问题是,从某些行政环境页起,可能需要的手法模式可能发生变化。 和在某些情况下一样,我们可能需要用户以三十-三十格式加入(XXXXXX) 或可能是(XXXXXX) 等。
在某些情况下,血压法只能包括数字,有时是甲型数字。
请提供帮助。
不幸的是,对邮政地址,包括邮政代码(aka zip代码)没有良好的本地化支持。 这个博客员额(大约一年,但不幸仍然很相关)描述了邮政地址验证的令人不安的状况。 在美国,邮政局提供;Address Validation/59/;网上协议。 我知道的唯一其他工具是一个叫做libaddressinput。 项目摘要指出,虽然统一调查是针对具体的,但后端可以再使用。
由于这方面没有巨大的工具,这里有一些法典规定,在不使用管制法的情况下,对编码适用某些模式。 你们可以有你保护伞提供的模式,但可以清楚地看到。
Although your question doesn t specify a country, I will post one for US zip codes since those patterns are familiar to me:
public static boolean isProbablyValidUSZipCode(CharSequence zip) {
String[] patterns = {"#####", "#####-####", "##### ####", "#########"};
try {
for (String pattern : patterns) {
if (checkAgainstPattern(zip, pattern)) {
return true;
}
}
return false;
}
catch (NullPointerException ignored) {
return false;
}
}
private static boolean checkAgainstPattern(CharSequence s, CharSequence pattern) {
if (s.length() != pattern.length()) {
return false;
}
for (int i = 0; i < pattern.length(); i++) {
char c = s.charAt(i);
switch (pattern.charAt(i)) {
case # :
if (!Character.isDigit(c)) {
return false;
}
break;
default:
if (c != pattern.charAt(i)) {
return false;
}
}
}
return true;
}
为了允许字母数字,您可修改<代码>Character.isDigit至Character.isLetterOrDigit
。 然而,如果不同国家有不同的制约因素(它们确实有这些限制),这种限制将难以想象。
Of course, this will not do any sort of lookup to catch zip codes that don t exist or are somehow reserved/otherwise invalid, but it s likely better than no validation at all. If you do later find some lookup service, you can always call it after these static methods since I d imagine that would be more expensive.
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