
马上注册,结交更多好友,享用更多功能,让你轻松玩转社区。
您需要 登录 才可以下载或查看,没有帐号?立即注册
x
看到微信的公共平台接入文档接口验证的例子是PHP写的,对于很多不是做php的人来说有点麻烦,虽然编程思想是相同的,逻辑也很简单,但是一种语言有一种语言的语法规范,其实代码的编写还是差距挺大的。这里写一下JAVA版接口验证的实现。- response.setContentType("text/html");
- PrintWriter out = response.getWriter();
- String signature = request.getParameter("signature");
- String timestamp = request.getParameter("timestamp");
- String nonce = request.getParameter("nonce");
- String echostr = request.getParameter("echostr");
- String reSignature = null;
- try {
- String[] str = { TOKEN, timestamp, nonce };
- Arrays.sort(str);
- String bigStr = str[0] + str[1] + str[2];
- reSignature = new SHA1().getDigestOfString(bigStr.getBytes())
- .toLowerCase();
- } catch (Exception e) {
- e.printStackTrace();
- }
- if (null != reSignature && reSignature.equals(signature)) {
- //请求来自微信
- out.print(echostr);
- } else {
- out.print("error request! the request is not from weixin server");
- }
- out.flush(); out.close();
复制代码
逻辑代码就这些,就是按照文档上说的来:1. 将token、timestamp、nonce三个参数进行字典序排序2. 将三个参数字符串拼接成一个字符串进行sha1加密3. 开发者获得加密后的字符串可与signature对比,标识该请求来源于微信上面代码中有一个工具类SHA1,就是实现了一个加密解密算法,网上也有,这里贴一下代码。
- package duanqing.test.servlet.tools;
-
- public class SHA1 {
- private final int[] abcde = { 0x67452301, 0xefcdab89, 0x98badcfe,
- 0x10325476, 0xc3d2e1f0 };
- // 摘要数据存储数组
- private int[] digestInt = new int[5];
- // 计算过程中的临时数据存储数组
- private int[] tmpData = new int[80];
-
- // 计算sha-1摘要
- private 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;
- // 循环对每个数据单元进行摘要计算
- for (int pos = 0; pos < MCount; pos++) {
- // 将每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
- private 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;
- // 计算添加0的个数以及添加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 int f1(int x, int y, int z) {
- return (x & y) | (~x & z);
- }
-
- private int f2(int x, int y, int z) {
- return x ^ y ^ z;
- }
-
- private int f3(int x, int y, int z) {
- return (x & y) | (x & z) | (y & z);
- }
-
- private int f4(int x, int y) {
- return (x << y) | x >>> (32 - y);
- }
-
- // 单元摘要计算函数
- private void encrypt() {
- for (int i = 16; i <= 79; i++) {
- tmpData = 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
- private int byteArrayToInt(byte[] bytedata, int i) {
- return ((bytedata& 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
- private void intToByteArray(int intValue, byte[] byteData, int i) {
- byteData= (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
- 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
- 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,返回相应的字节数组
- public 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,返回相应的十六进制字符串
- public String getDigestOfString(byte[] byteData) {
- return byteArrayToHexString(getDigestOfBytes(byteData));
- }
- public static void main(String[] args) {
- String data = "123456";
- System.out.println(data);
- String digest = new SHA1().getDigestOfString(data.getBytes()).toLowerCase();
- System.out.println(digest);
- // System.out.println( ToMD5.convertSHA1(data).toUpperCase());
- } }
复制代码
|
|