package com.wx.project.util;import java.security.MessageDigest;/** sha1 加密算法* 網上copy 一大堆*/ public class SHA1 {private static final char[] HEX_DIGITS = {'0', '1', '2', '3', '4', '5','6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};/*** Takes the raw bytes from the digest and formats them correct.** @param bytes the raw bytes from the digest.* @return the formatted bytes.*/private static String getFormattedText(byte[] bytes) {int len = bytes.length;StringBuilder buf = new StringBuilder(len * 2);// 把密文轉換成十六進制的字符串形式for (int j = 0; j < len; j++) {buf.append(HEX_DIGITS[(bytes[j] >> 4) & 0x0f]);buf.append(HEX_DIGITS[bytes[j] & 0x0f]);}return buf.toString();}public static String encode(String str) {if (str == null) {return null;}try {MessageDigest messageDigest = MessageDigest.getInstance("SHA1");messageDigest.update(str.getBytes());return getFormattedText(messageDigest.digest());} catch (Exception e) {throw new RuntimeException(e);}}}

外部SHA1.encode("字符串")調用

轉載于:https://www.cnblogs.com/iscys/p/9501342.html

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