public static PhoneProviderType getPhoneProvider(String phone) {
// 截取前3或前4位电话号码,判断运营商
String head_three = phone.substring(0, 3);
PhoneProviderType phoneProviderType = pre_three.entrySet().stream().filter(e -> e.getValue().contains(head_three)).map(e -> e.getKey()).findFirst().orElse(null);
if(phoneProviderType == null){
String head_four = phone.substring(0, 4);
phoneProviderType = pre_four.entrySet().stream().filter(e -> e.getValue().contains(head_four)).map(e -> e.getKey()).findFirst().orElse(null);
}
if(phoneProviderType == null){
phoneProviderType = PhoneProviderType.联通;
}
return phoneProviderType;
}
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转载自my.oschina.net/u/3666174/blog/1558324
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