RegexUtils.java

package ren.solid.library.utils;

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

/**
 * Created by _SOLID
 * Date:2016/5/10
 * Time:10:36
 */
public class RegexUtils {
    /**
     * 判断email格式是否正确
     *
     * @param email
     * @return
     */
    public static boolean isEmail(String email) {
        String str = "^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$";
        Pattern p = Pattern.compile(str);
        Matcher m = p.matcher(email);
        return m.matches();
    }

    /**
     * 判断是不是合法手机号码
     */
    public static boolean isPhoneNumber(String handset) {
        try {
            if (!handset.substring(0, 1).equals("1")) {
                return false;
            }
            if (handset == null || handset.length() != 11) {
                return false;
            }
            String check = "^[0123456789]+$";
            Pattern regex = Pattern.compile(check);
            Matcher matcher = regex.matcher(handset);
            boolean isMatched = matcher.matches();
            if (isMatched) {
                return true;
            } else {
                return false;
            }
        } catch (RuntimeException e) {
            return false;
        }
    }

    /**
     * 判断输入的字符串是否为纯汉字
     *
     * @param str 传入的字符窜
     * @return 如果是纯汉字返回true, 否则返回false
     */
    public static boolean isChinese(String str) {
        Pattern pattern = Pattern.compile("[\u0391-\uFFE5]+$");
        return pattern.matcher(str).matches();
    }

    /**
     * 判断是否为数字
     *
     * @param str
     * @return
     */
    public static boolean isNumeric(String str) {
        Pattern pattern = Pattern.compile("[0-9]*");
        Matcher isNum = pattern.matcher(str);
        if (!isNum.matches()) {
            return false;
        }
        return true;
    }
    /**
     * 判断是否为整数
     *
     * @param str
     *            传入的字符串
     * @return 是整数返回true,否则返回false
     */
    public static boolean isInteger(String str) {
        Pattern pattern = Pattern.compile("^[-\\+]?[\\d]*$");
        return pattern.matcher(str).matches();
    }

    /**
     * 判断是否为浮点数，包括double和float
     *
     * @param str
     *            传入的字符串
     * @return 是浮点数返回true,否则返回false
     */
    public static boolean isDouble(String str) {
        Pattern pattern = Pattern.compile("^[-\\+]?[.\\d]*$");
        return pattern.matcher(str).matches();
    }
}