【快手app】今年6.1算法分享

循环不计数

1. public class SingatureUtil {
   
2. 
   
3. private static final String FANS_SALT = "382700b563f4";
   
4. 
   
5. public static String genSignature(Map params,String salt) {
   
6. if(params == null){
   
7. return null;
   
8. }
   
9. String sign = "";
   
10. StringBuffer sb = new StringBuffer();
    
11. try {
    
12. // 1. 字典升序排序
    
13. SortedMap sortedMap = new TreeMap<>(params);
    
14. // 2. 拼按URL键值对
    
15. Set keySet = sortedMap.keySet();
    
16. for(String key : keySet){
    
17. //sign不参与算法
    
18. if(key.equals("sig") || key.equals("__NStokensig")){
    
19. continue;
    
20. }
    
21. String value = sortedMap.get(key);
    
22. sb.append(key + "=" + URLDecoder.decode(value,"UTF-8"));
    
23. }
    
24. String uriString = sb.toString();
    
25. uriString = uriString + salt;
    
26. System.out.println("My String: \n" + uriString);
    
27. // 3. MD5运算得到请求签名
    
28. sign = MD5Util.md5(uriString);
    
29. System.out.println("My Sign:\n" +sign);
    
30. } catch (Exception e) {
    
31. e.printStackTrace();
    
32. }
    
33. return sign;
    
34. }
    
35. 
    
36. public static Map getMapFromStr(String str){
    
37. if(StringUtils.isEmpty(str)){
    
38. return null;
    
39. }
    
40. String[] arr = str.split("\\&");
    
41. Map map = new HashMap<>();
    
42. for(String item : arr){
    
43. String[] itemArr = item.split("=",2);
    
44. map.put(itemArr[0],itemArr[1]);
    
45. }
    
46. return map;
    
47. }
    
48. 
    
49. public static void main(String[] args) throws UnsupportedEncodingException {
    
50. String srcStr = "app=0&lon=104.073269&did_gt=1551777466213&c=XIAOMI&sys=ANDROID_4.4.4&isp=&mod=Xiaomi%28MI%203%29&did=ANDROID_b07d34ee8ff226b0&hotfix_ver=&ver=6.1&net=WIFI&country_code=cn&iuid=&appver=6.1.2.8197&max_memory=192&oc=XIAOMI&ftt=&kpn=KUAISHOU&ud=1273257807&language=zh-cn&kpf=ANDROID_PHONE&lat=30.537794&user=74476707&token=6f8b8954c34e4462a1c0117ac5a5af21-1273257807&os=android&client_key=3c2cd3f3&sig=8ab207f1762b17b47d1ca0cc26ce6576&__NStokensig=334b7f77f9fec536c1dce00467f8*F9bed4f66cd8a24ffc205b3e1a151ab1e7";
    
51. genSignature(getMapFromStr(srcStr),FANS_SALT);
    
52. }
    
53. }
    
54. 
    

复制代码

代码运行结果回复可见↓

运行结果如下：
My String:
app=0appver=6.1.2.8197c=XIAOMIclient_key=3c2cd3f3country_code=cndid=ANDROID_b07d34ee8ff226b0did_gt=1551777466213ftt=hotfix_ver=isp=iuid=kpf=ANDROID_PHONEkpn=KUAISHOUlanguage=zh-cnlat=30.537794lon=104.073269max_memory=192mod=Xiaomi(MI 3)net=WIFIoc=XIAOMIos=androidsys=ANDROID_4.4.4token=6f8b8954c34e4462a1c0117ac5a5af21-1273257807ud=1273257807user=74476707ver=6.1382700b563f4
Sign:
8ab207f1762b17b47d1ca0cc26ce6576

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快手app】今年6.1算法分享

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