微信接入中需要用到sha1的算法。java版的sha1加密如下：
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/* * 微信公眾平臺(java) sdk * * copyright (c) 2016, ansitech network technology co.,ltd all rights reserved. * http://www.ansitech.com/weixin/sdk/ * * licensed under the apache license, version 2.0 (the "license"); * you may not use this file except in compliance with the license. * you may obtain a copy of the license at * * http://www.apache.org/licenses/license-2.0 * * unless required by applicable law or agreed to in writing, software * distributed under the license is distributed on an "as is" basis, * without warranties or conditions of any kind, either express or implied. * see the license for the specific language governing permissions and * limitations under the license. */package com.levi.utils; import java.security.messagedigest; /** * <p>title: sha1算法</p> * * @author levi */public final 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); } }} |
如果需要做微信接入，直接把上面的復制新建一個類即可使用，我自己做好的，測試微信接入成功。
原文鏈接：https://blog.csdn.net/qq_25821067/article/details/53643365
