package org.yeshi.utils;
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import java.io.UnsupportedEncodingException;
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import java.lang.reflect.Method;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import org.apache.commons.codec.binary.Base64;
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import sun.misc.BASE64Encoder;
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public class StringUtil {
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// 判断是否为手机号码
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public static boolean isMobile(String mobile) {
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String regex = "^((13[0-9])|(17[0-9])|(15[^4,\\D])|(18[0-9]))\\d{8}$";
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Pattern p = Pattern.compile(regex);
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Matcher m = p.matcher(mobile);
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if (mobile == null || mobile.equals("") || mobile.length() != 11) {
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return false;
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} else {
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return m.find();
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}
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}
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/**
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* 获取数字和字母的随机码
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*
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* @param count
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* @return
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*/
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public static String getRandomCode(int count) {
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String sts = "0123456789abcdefghijklmnopqrsduvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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String code = "";
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for (int i = 0; i < count; i++) {
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int p = (int) (Math.random() * 62);
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code += sts.charAt(p);
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}
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return code;
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}
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/**
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* 获取6位数字验证码
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*
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* @return
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*/
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public static String getVerifyCode() {
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String sts = "0123456789";
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String code = "";
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for (int i = 0; i < 6; i++) {
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int p = (int) (Math.random() * 10);
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code += sts.charAt(p);
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}
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return code;
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}
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/**
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* 判断字符串是否为空
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*
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* @param text
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* @return
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*/
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public static boolean isNullOrEmpty(String text) {
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if (text == null || text.length() == 0 || text.equalsIgnoreCase("null")) {
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return true;
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}
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return false;
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}
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/**
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* 32为MD5小写加密
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*
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* @param st
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* @return
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*/
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public static String Md5(String st) {
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try {
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MessageDigest md = MessageDigest.getInstance("MD5");
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try {
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md.update(st.getBytes("UTF-8"));
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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}
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byte b[] = md.digest();
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int i;
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StringBuffer buf = new StringBuffer("");
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for (int offset = 0; offset < b.length; offset++) {
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i = b[offset];
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if (i < 0)
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i += 256;
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if (i < 16)
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buf.append("0");
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buf.append(Integer.toHexString(i));
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}
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return buf.toString();
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// LogUtil.i("result: " + buf.toString());// 32λ�ļ���
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// LogUtil.i("result: " + buf.toString().substring(8,
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// 24));// 16λ�ļ���
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 将null转为空字符串
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*
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* @param st
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* @return
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*/
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public static String getString(String st) {
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return isNullOrEmpty(st) ? "" : st;
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}
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/**
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* 将整数转为字符串
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*
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* @param i
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* @return
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*/
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public static String getString(int i) {
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return getString(i + "");
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}
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/**
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* 将长整形转为字符串
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*
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* @param i
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* @return
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*/
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public static String getString(long i) {
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return getString(i + "");
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}
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/**
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* 获取电话号码的隐藏格式
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*
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* @param mobile
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* @return
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*/
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public static String getSubMobile(String mobile) {
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if (!StringUtil.isNullOrEmpty(mobile) && mobile.length() > 10) {
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return mobile.subSequence(0, 3).toString() + "****" + mobile.subSequence(7, mobile.length()).toString();
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} else
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return mobile;
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}
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/**
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* BASE64加密
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*
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* @param b
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* @return
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*/
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@SuppressWarnings("restriction")
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public static String getBase64FromByte(byte[] b) {
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String s = null;
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if (b != null) {
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s = new BASE64Encoder().encode(b);
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}
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return s;
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}
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/**
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* 提取字符串中的所有数字
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*
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* @param st
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* @return
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*/
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public static String getNumberFromString(String st) {
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String number = "";
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Pattern p = Pattern.compile("[0-9\\.]+");
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Matcher m = p.matcher(st);
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while (m.find()) {
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number += (m.group() + ",");
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}
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return number;
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}
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/**
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* 将字符串转为UTF-8编码
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*
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* @param resource
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* @param chactor
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* @return
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*/
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public static String getUTF8String(String resource, String chactor) {
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if (!isNullOrEmpty(resource)) {
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try {
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return new String(resource.getBytes(chactor), "UTF-8");
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} catch (UnsupportedEncodingException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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return "";
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}
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/**
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* Base64加密
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*
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* @param str
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* @return
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* @throws Exception
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*/
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@SuppressWarnings({ "unchecked", "rawtypes" })
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public static String getBase64String(String str) throws Exception {
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byte[] input = str.getBytes("UTF-8");
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Class clazz = Class.forName("com.sun.org.apache.xerces.internal.impl.dv.util.Base64");
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Method mainMethod = clazz.getMethod("encode", byte[].class);
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mainMethod.setAccessible(true);
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Object retObj = mainMethod.invoke(null, new Object[] { input });
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return (String) retObj;
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}
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/**
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* BASE64解密
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*
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* @param s
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* @return
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*/
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public static String getFromBase64(String s) {
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byte[] b = null;
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String result = null;
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if (s != null) {
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final Base64 base64 = new Base64();
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try {
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b = base64.decode(s.getBytes("UTF-8"));
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result = new String(b, "utf-8");
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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return result;
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}
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/**
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* SHA1加密
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*
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* @param decript
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* @return
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*/
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public static String SHA1(String decript) {
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try {
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MessageDigest digest = java.security.MessageDigest.getInstance("SHA-1");
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digest.update(decript.getBytes());
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byte messageDigest[] = digest.digest();
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// Create Hex String
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StringBuffer hexString = new StringBuffer();
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// 字节数组转换�?十六进制 �?
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for (int i = 0; i < messageDigest.length; i++) {
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String shaHex = Integer.toHexString(messageDigest[i] & 0xFF);
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if (shaHex.length() < 2) {
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hexString.append(0);
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}
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hexString.append(shaHex);
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}
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return hexString.toString();
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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}
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return "";
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}
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public static long[] parseLong(String[] arr) {
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long[] lArr = new long[arr.length];
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int ii = 0;
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for (String str : arr) {
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lArr[ii] = Long.parseLong(str);
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ii++;
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}
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return lArr;
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}
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}
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