常用java正则表达式的工具类

import com.google.common.base.Strings;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 常用的正则表达式
 * Created by tookbra on 2016/4/7.
 */
public class RegexUtils {
  /**
   * 判断是否是正确的IP地址
   *
   * @param ip
   * @return boolean true,通过，false，没通过
   */
  public static boolean isIp(String ip) {
    if (Strings.isNullOrEmpty(ip))
      return false;
    String regex = "^(1d{2}|2[0-4]d|25[0-5]|[1-9]d|[1-9])."
        + "(1d{2}|2[0-4]d|25[0-5]|[1-9]d|d)."
        + "(1d{2}|2[0-4]d|25[0-5]|[1-9]d|d)."
        + "(1d{2}|2[0-4]d|25[0-5]|[1-9]d|d)$";
    return ip.matches(regex);
  }
  /**
   * 判断是否是正确的邮箱地址
   *
   * @param email
   * @return boolean true,通过，false，没通过
   */
  public static boolean isEmail(String email) {
    if (Strings.isNullOrEmpty(email))
      return false;
    String regex = "w+([-+.]w+)*@w+([-.]w+)*.w+([-.]w+)*";
    return email.matches(regex);
  }
  /**
   * 判断是否含有中文，仅适合中国汉字，不包括标点
   * @param text
   * @return boolean true,通过，false，没通过
   */
  public static boolean isChinese(String text) {
    if (Strings.isNullOrEmpty(text))
      return false;
    Pattern p = Pattern.compile("[u4e00-u9fa5]");
    Matcher m = p.matcher(text);
    return m.find();
  }
  /**
   * 判断是否正整数
   *
   * @param number
   *      数字
   * @return boolean true,通过，false，没通过
   */
  public static boolean isNumber(String number) {
    if (Strings.isNullOrEmpty(number))
      return false;
    String regex = "[0-9]*";
    return number.matches(regex);
  }
  /**
   * 判断几位小数(正数)
   *
   * @param decimal
   *      数字
   * @param count
   *      小数位数
   * @return boolean true,通过，false，没通过
   */
  public static boolean isDecimal(String decimal,int count) {
    if (Strings.isNullOrEmpty(decimal))
      return false;
    String regex = "^(-)?(([1-9]{1}d*)|([0]{1}))(.(d){" + count
        + "})?$";
    return decimal.matches(regex);
  }
  /**
   * 判断是否是移动手机号码
   *
   * @param phoneNumber
   *      移动手机号码
   * @return boolean true,通过，false，没通过
   */
  public static boolean isMobilePhoneNumber(String phoneNumber) {
    if (Strings.isNullOrEmpty(phoneNumber))
      return false;
    String regex = "^((13[0-9])|(15[0-9])|(18[1-9]))d{8}$";
    return phoneNumber.matches(regex);
  }

  /**
   * 判断是否是手机号码
   *
   * @param phoneNumber
   *      移动手机号码
   * @return boolean true,通过，false，没通过
   */
  public static boolean isPhoneNumber(String phoneNumber) {
    if (Strings.isNullOrEmpty(phoneNumber))
      return false;
    String regex = "^1d{10}$";
    return phoneNumber.matches(regex);
  }
  /**
   * 判断是否含有特殊字符
   *
   * @param text
   * @return boolean true,通过，false，没通过
   */
  public static boolean hasSpecialChar(String text) {
    if (Strings.isNullOrEmpty(text))
      return false;
    if (text.replaceAll("[a-z]*[A-Z]*d*-*_*s*","").length() == 0) {
      // 如果不包含特殊字符
      return true;
    }
    return false;
  }

  private static boolean isChinese(char c) {
    Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
    if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
        || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
        || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
        || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B
        || ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
        || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS
        || ub == Character.UnicodeBlock.GENERAL_PUNCTUATION) {
      return true;
    }
    return false;
  }
}