阿里巴巴全球速卖通（AliExpress）参数签名算法

球速卖通（AliExpress）参数签名算法"/>

阿里巴巴全球速卖通（AliExpress）参数签名算法

签名规则如图所示：

规则参考链接：.htm?ns=aliexpress.open

下面是自己代码的实现、以及测试：

package com.aliexpress.until;import java.util.ArrayList;
import java.util.Collections;
import java.util.List;import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;import org.apache.http.message.BasicNameValuePair;public class GrantTool {private static final String APP_KEY = "10000";private static final String APP_SECRET = "abcd";private static final String HMAC_SHA1 = "HmacSHA1";private static final String UTF8 = "UTF-8";public static void main(String[] args) throws Exception {List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();params.add(new BasicNameValuePair("client_id", APP_KEY));params.add(new BasicNameValuePair("site", "aliexpress"));params.add(new BasicNameValuePair("redirect_uri", "http://localhost:8888"));params.add(new BasicNameValuePair("state", "test"));String signature = new GrantTool().getSignature(params);System.out.println(signature);}/*** 获取参数签名* @param pairs 参数键值对* @return 参数签名的值* @throws Exception */public String getSignature(List<BasicNameValuePair> params) throws Exception{if (params == null || params.isEmpty()) {return null;}// 1. 拼接参数key、valueList<String> paramList = new ArrayList<String>();for (BasicNameValuePair each : params) {if (each.getValue() != null) {paramList.add(each.getName()+each.getValue());}else {paramList.add(each.getName());}}// 2. 对参数按首字顺序排序Collections.sort(paramList);// 3. 拼接，获取最终签名因子StringBuffer sb = new StringBuffer();for (String each : paramList) {sb.append(each);}// 4. hmac_sha1签名算法byte [] bytes = hamc_sha1(sb.toString(), APP_SECRET);// 5. 将签名转为16进制字符串String str = hex(bytes);// 6. 将16进制签名转为大写字符String signature = str.toUpperCase();// 返回最终签名数据return signature;}/***  hmac_sha1签名算法* @param data 需签名的字符串* @param encrypKey 签名密钥* @return 生成的签名* @throws Exception*/private static byte[] hamc_sha1(String data,String encrypKey) throws Exception{byte [] keyBytes = encrypKey.getBytes(UTF8);SecretKey secretKey = new SecretKeySpec(keyBytes, HMAC_SHA1);Mac mac = Mac.getInstance(HMAC_SHA1);mac.init(secretKey);byte [] dataBytes = data.getBytes(UTF8);return mac.doFinal(dataBytes);}/*** byte数组转16进制* @param bytes 需转换的数组* @return 16进制数*/public static String hex( byte[] bytes) {StringBuffer sb = new StringBuffer();for (int i = 0; i < bytes.length; i++) { String hex = Integer.toHexString(bytes[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } sb.append(hex);}return sb.toString(); }
}

测试结果与规则上的预期结果完全一致