在开发微信公共平台一些新手通常都会遇到的问题(ps:我就是那个新手)
我这里仅仅讲自己遇到的问题。遇到了token失败的问题,首先查阅资料,具体了解各个字段的具体含义,并验证代码sha1验证是否正确。看看失败的原因,依据文档提示,2个字符串假设不匹配的话,肯定是验证失败了。依据我个人想法,我是来把加密后的字符串。微信发送的字符串(signature)。提取出来。来比对推断究竟是哪里错了。
我这里用的一个非常蠢的办法,就是在H盘里面生成一个,文件,文件名称各自是2个字符串。【或者写入txt文档】(假设有更好的方法回复下哦,一起学习)
代码:
<span style="white-space:pre"> </span>String path = "h:"; File f = new File(path); if(!f.exists()){ f.mkdirs(); } // fileName表示你创建的文件名称;为txt类型; String fileName = <span style="font-family: Arial, Helvetica, sans-serif; font-size: 12px;">fileName</span><span style="font-size: 12px; font-family: Arial, Helvetica, sans-serif;">;</span> File filee = new File(f,fileName); if(!filee.exists()){ try { filee.createNewFile(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } }
从而失败。
sha1算法:
private static final int[] abcde = { 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 }; // 摘要数据存储数组 private static int[] digestInt = new int[5]; // 计算过程中的暂时数据存储数组 private static int[] tmpData = new int[80]; /** * 计算sha-1摘要 * * @param bytedata * @return */ private static int process_input_bytes(byte[] bytedata) { // 初试化常量 System.arraycopy(abcde, 0, digestInt, 0, abcde.length); // 格式化输入字节数组,补10及长度数据 byte[] newbyte = byteArrayFormatData(bytedata); // 获取数据摘要计算的数据单元个数 int MCount = newbyte.length / 64; // 循环对每一个数据单元进行摘要计算 for (int pos = 0; pos < MCount; pos++) { // 将每一个单元的数据转换成16个整型数据,并保存到tmpData的前16个数组元素中 for (int j = 0; j < 16; j++) { tmpData[j] = byteArrayToInt(newbyte, (pos * 64) + (j * 4)); } // 摘要计算函数 encrypt(); } return 20; } /** * 格式化输入字节数组格式 * * @param bytedata * @return */ private static byte[] byteArrayFormatData(byte[] bytedata) { // 补0数量 int zeros = 0; // 补位后总位数 int size = 0; // 原始数据长度 int n = bytedata.length; // 模64后的剩余位数 int m = n % 64; // 计算加入0的个数以及加入10后的总长度 if (m < 56) { zeros = 55 - m; size = n - m + 64; } else if (m == 56) { zeros = 63; size = n + 8 + 64; } else { zeros = 63 - m + 56; size = (n + 64) - m + 64; } // 补位后生成的新数组内容 byte[] newbyte = new byte[size]; // 复制数组的前面部分 System.arraycopy(bytedata, 0, newbyte, 0, n); // 获得数组Append数据元素的位置 int l = n; // 补1操作 newbyte[l++] = (byte) 0x80; // 补0操作 for (int i = 0; i < zeros; i++) { newbyte[l++] = (byte) 0x00; } // 计算数据长度,补数据长度位共8字节,长整型 long N = (long) n * 8; byte h8 = (byte) (N & 0xFF); byte h7 = (byte) ((N >> 8) & 0xFF); byte h6 = (byte) ((N >> 16) & 0xFF); byte h5 = (byte) ((N >> 24) & 0xFF); byte h4 = (byte) ((N >> 32) & 0xFF); byte h3 = (byte) ((N >> 40) & 0xFF); byte h2 = (byte) ((N >> 48) & 0xFF); byte h1 = (byte) (N >> 56); newbyte[l++] = h1; newbyte[l++] = h2; newbyte[l++] = h3; newbyte[l++] = h4; newbyte[l++] = h5; newbyte[l++] = h6; newbyte[l++] = h7; newbyte[l++] = h8; return newbyte; } private static int f1(int x, int y, int z) { return (x & y) | (~x & z); } private static int f2(int x, int y, int z) { return x ^ y ^ z; } private static int f3(int x, int y, int z) { return (x & y) | (x & z) | (y & z); } private static int f4(int x, int y) { return (x << y) | x >>> (32 - y); } /** * 单元摘要计算函数 */ private static void encrypt() { for (int i = 16; i <= 79; i++) { tmpData[i] = f4(tmpData[i - 3] ^ tmpData[i - 8] ^ tmpData[i - 14] ^ tmpData[i - 16], 1); } int[] tmpabcde = new int[5]; for (int i1 = 0; i1 < tmpabcde.length; i1++) { tmpabcde[i1] = digestInt[i1]; } for (int j = 0; j <= 19; j++) { int tmp = f4(tmpabcde[0], 5) + f1(tmpabcde[1], tmpabcde[2], tmpabcde[3]) + tmpabcde[4] + tmpData[j] + 0x5a827999; tmpabcde[4] = tmpabcde[3]; tmpabcde[3] = tmpabcde[2]; tmpabcde[2] = f4(tmpabcde[1], 30); tmpabcde[1] = tmpabcde[0]; tmpabcde[0] = tmp; } for (int k = 20; k <= 39; k++) { int tmp = f4(tmpabcde[0], 5) + f2(tmpabcde[1], tmpabcde[2], tmpabcde[3]) + tmpabcde[4] + tmpData[k] + 0x6ed9eba1; tmpabcde[4] = tmpabcde[3]; tmpabcde[3] = tmpabcde[2]; tmpabcde[2] = f4(tmpabcde[1], 30); tmpabcde[1] = tmpabcde[0]; tmpabcde[0] = tmp; } for (int l = 40; l <= 59; l++) { int tmp = f4(tmpabcde[0], 5) + f3(tmpabcde[1], tmpabcde[2], tmpabcde[3]) + tmpabcde[4] + tmpData[l] + 0x8f1bbcdc; tmpabcde[4] = tmpabcde[3]; tmpabcde[3] = tmpabcde[2]; tmpabcde[2] = f4(tmpabcde[1], 30); tmpabcde[1] = tmpabcde[0]; tmpabcde[0] = tmp; } for (int m = 60; m <= 79; m++) { int tmp = f4(tmpabcde[0], 5) + f2(tmpabcde[1], tmpabcde[2], tmpabcde[3]) + tmpabcde[4] + tmpData[m] + 0xca62c1d6; tmpabcde[4] = tmpabcde[3]; tmpabcde[3] = tmpabcde[2]; tmpabcde[2] = f4(tmpabcde[1], 30); tmpabcde[1] = tmpabcde[0]; tmpabcde[0] = tmp; } for (int i2 = 0; i2 < tmpabcde.length; i2++) { digestInt[i2] = digestInt[i2] + tmpabcde[i2]; } for (int n = 0; n < tmpData.length; n++) { tmpData[n] = 0; } } /** * 4字节数组转换为整数 * * @param bytedata * @param i * @return */ private static int byteArrayToInt(byte[] bytedata, int i) { return ((bytedata[i] & 0xff) << 24) | ((bytedata[i + 1] & 0xff) << 16) | ((bytedata[i + 2] & 0xff) << 8) | (bytedata[i + 3] & 0xff); } // /** * 整数转换为4字节数组 * * @param intValue * @param byteData * @param i */ private static void intToByteArray(int intValue, byte[] byteData, int i) { byteData[i] = (byte) (intValue >>> 24); byteData[i + 1] = (byte) (intValue >>> 16); byteData[i + 2] = (byte) (intValue >>> 8); byteData[i + 3] = (byte) intValue; } /** * 将字节转换为十六进制字符串 * * @param ib * @return */ private static String byteToHexString(byte ib) { char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; char[] ob = new char[2]; ob[0] = Digit[(ib >>> 4) & 0X0F]; ob[1] = Digit[ib & 0X0F]; String s = new String(ob); return s; } /** * 将字节数组转换为十六进制字符串 * * @param bytearray * @return */ private static String byteArrayToHexString(byte[] bytearray) { String strDigest = ""; for (int i = 0; i < bytearray.length; i++) { strDigest += byteToHexString(bytearray[i]); } return strDigest; } /** * 计算sha-1摘要,返回对应的字节数组 * * @param byteData * @return */ public static byte[] getDigestOfBytes(byte[] byteData) { process_input_bytes(byteData); byte[] digest = new byte[20]; for (int i = 0; i < digestInt.length; i++) { intToByteArray(digestInt[i], digest, i * 4); } return digest; } /** * 计算sha-1摘要。返回对应的十六进制字符串 * * @param byteData * @return */ public static String getDigestOfString(byte[] byteData) { return byteArrayToHexString(getDigestOfBytes(byteData)); } /** * @param data * @return */ public static String Digest(String data){ return getDigestOfString(data.getBytes()); } /** * @param data * @return */ public static String Digest(String data,String encode){ try { return getDigestOfString(data.getBytes(encode)); } catch (UnsupportedEncodingException e) { return Digest(data); } } /** * @param text * @return */ public static String SHA1Digest(String text) { String pwd = ""; try { MessageDigest md = MessageDigest.getInstance("SHA1"); md.update(text.getBytes()); pwd = new BigInteger(1, md.digest()).toString(16); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } return pwd; }