最近做的項目有一部分關於手機號碼的操作,於是蒐羅了一些資料,整了一個工具類。主要有以下三個功能:判斷號碼是否有效、獲取號碼運營商、獲取號碼歸屬地。
首先需要引入google開發的相關依賴或者下載對應的jar包
<dependency>
<groupId>com.googlecode.libphonenumber</groupId>
<artifactId>geocoder</artifactId>
<version>2.15</version>
</dependency>
<dependency>
<groupId>com.googlecode.libphonenumber</groupId>
<artifactId>libphonenumber</artifactId>
<version>6.3</version>
</dependency>
<dependency>
<groupId>com.googlecode.libphonenumber</groupId>
<artifactId>prefixmapper</artifactId>
<version>2.15</version>
</dependency>
<dependency>
<groupId>com.googlecode.libphonenumber</groupId>
<artifactId>carrier</artifactId>
<version>1.5</version>
</dependency>
下面是工具類的源碼:
import java.util.Locale;
import com.google.i18n.phonenumbers.PhoneNumberToCarrierMapper;
import com.google.i18n.phonenumbers.PhoneNumberUtil;
import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber;
import com.google.i18n.phonenumbers.geocoding.PhoneNumberOfflineGeocoder;
/**
*
* @ClassName: PhoneUtil
* @Description:手機號碼歸屬地工具類
*/
public class PhoneUtil {
private static PhoneNumberUtil phoneNumberUtil = PhoneNumberUtil.getInstance();
private static PhoneNumberToCarrierMapper carrierMapper = PhoneNumberToCarrierMapper.getInstance();
private static PhoneNumberOfflineGeocoder geocoder = PhoneNumberOfflineGeocoder.getInstance();
/**
* 根據國家代碼和手機號 判斷手機號是否有效
* @param phoneNumber
* @param countryCode
* @return
*/
public static boolean checkPhoneNumber(String phoneNumber, String countryCode){
int ccode = StringUtils.obj2Int(countryCode);
long phone = StringUtils.toLong(phoneNumber);
PhoneNumber pn = new PhoneNumber();
pn.setCountryCode(ccode);
pn.setNationalNumber(phone);
return phoneNumberUtil.isValidNumber(pn);
}
/**
* 根據國家代碼和手機號 判斷手機運營商
* @param phoneNumber
* @param countryCode
* @return
*/
public static String getCarrier(String phoneNumber, String countryCode){
int ccode = StringUtils.obj2Int(countryCode);
long phone = StringUtils.toLong(phoneNumber);
PhoneNumber pn = new PhoneNumber();
pn.setCountryCode(ccode);
pn.setNationalNumber(phone);
//返回結果只有英文,自己轉成成中文
String carrierEn = carrierMapper.getNameForNumber(pn, Locale.ENGLISH);
String carrierZh = "";
carrierZh += geocoder.getDescriptionForNumber(pn, Locale.CHINESE);
switch (carrierEn) {
case "China Mobile":
carrierZh += "移動";
break;
case "China Unicom":
carrierZh += "聯通";
break;
case "China Telecom":
carrierZh += "電信";
break;
default:
break;
}
return carrierZh;
}
/**
*
* @Description: 根據國家代碼和手機號 手機歸屬地
* @param @param phoneNumber
* @param @param countryCode
* @param @return 參數
* @throws
*/
public static String getGeo(String phoneNumber, String countryCode){
int ccode = StringUtils.obj2Int(countryCode);
long phone = StringUtils.toLong(phoneNumber);
PhoneNumber pn = new PhoneNumber();
pn.setCountryCode(ccode);
pn.setNationalNumber(phone);
return geocoder.getDescriptionForNumber(pn, Locale.CHINESE);
}
/**
*
* @Title: getPhoneRegionCode
* @Description: 得到手機的歸宿地編碼
* @return String 返回類型
* @throws
*/
public static String getPhoneRegionCode(String phoneNumber, String countryCode){
String areaName=getGeo(phoneNumber,countryCode);
if(StringUtils.isEmpty(areaName)){
return "";
}
if(areaName.length()<3){
return "";
}
return areaName;
}
public static void main(String[] args) {
System.out.println(getPhoneRegionCode("18931234567","86"));
}
}
下面簡單地跟蹤了一下源碼:
判斷號碼是否有效,核心方法是PhoneNumberUtil類的isValidNumberForRegion方法,PhoneNumberType是PhoneNumberUtil類中定義的一個枚舉類,枚舉出了各種號碼的類型,例如FIXED_LINE(固定電話),MOBILE(手機號碼)。getNumberTypeHelper方法返回的就是通過號碼判斷出的類型,如果不是UNKNOWN則認爲是有效的號碼。
public boolean isValidNumberForRegion(PhoneNumber number, String regionCode) {
int countryCode = number.getCountryCode();
PhoneMetadata metadata = getMetadataForRegionOrCallingCode(countryCode, regionCode);
if ((metadata == null) ||
(!REGION_CODE_FOR_NON_GEO_ENTITY.equals(regionCode) &&
countryCode != getCountryCodeForValidRegion(regionCode))) {
// Either the region code was invalid, or the country calling code for this number does not
// match that of the region code.
return false;
}
String nationalSignificantNumber = getNationalSignificantNumber(number);
return getNumberTypeHelper(nationalSignificantNumber, metadata) != PhoneNumberType.UNKNOWN;
}
在獲取PhoneNumberOfflineGeocoder類對象時,會加載一個config文件,如下圖所示,內容大致是將號碼前綴與區域對應,這個文件是獲取號碼歸屬地的核心。
通過斷點調試的方法,會調用PhonePrefixMap類的lookup方法回去的號碼的描述(description)。
String lookup(long number) {
int numOfEntries = phonePrefixMapStorage.getNumOfEntries();
if (numOfEntries == 0) {
return null;
}
long phonePrefix = number;
int currentIndex = numOfEntries - 1;
SortedSet<Integer> currentSetOfLengths = phonePrefixMapStorage.getPossibleLengths();
while (currentSetOfLengths.size() > 0) {
Integer possibleLength = currentSetOfLengths.last();
String phonePrefixStr = String.valueOf(phonePrefix);
if (phonePrefixStr.length() > possibleLength) {
phonePrefix = Long.parseLong(phonePrefixStr.substring(0, possibleLength));
}
currentIndex = binarySearch(0, currentIndex, phonePrefix);
if (currentIndex < 0) {
return null;
}
int currentPrefix = phonePrefixMapStorage.getPrefix(currentIndex);
if (phonePrefix == currentPrefix) {
return phonePrefixMapStorage.getDescription(currentIndex);
}
currentSetOfLengths = currentSetOfLengths.headSet(possibleLength);
}
return null;
}
下面看看getDescription的實現方法,descriptionPool是一個字符串數組,通過計算出來的index獲取對應的號碼歸屬地。
public String getDescription(int index) {
int indexInDescriptionPool =
readWordFromBuffer(descriptionIndexes, descIndexSizeInBytes, index);
return descriptionPool[indexInDescriptionPool];
}
下圖是獲取歸屬地時的descriptionPool詳情
獲取運營商的方法與獲取歸屬地最終調用的方法相同,只是查詢運營商時傳入的參數是英文,而查詢歸屬地時傳入的參數是中文,下圖是查詢運營商時的getDescription情況,可以看到descriptionPool現在的值是運營商。