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src/main/java/com/egolm/film/util/AliyunSign.java

 package com.egolm.film.util;
 
-import sun.misc.BASE64Encoder;
-import javax.crypto.Mac;
-import javax.crypto.spec.SecretKeySpec;
-
-import com.egolm.common.HttpUtil;
-
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 import java.net.URL;
 import java.net.URLEncoder;
 import java.security.SignatureException;
 import java.text.SimpleDateFormat;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Scanner;
+import java.util.SimpleTimeZone;
+import java.util.UUID;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+
+import com.egolm.common.HttpUtil;
+
+import sun.misc.BASE64Encoder;
+
 /**
  * 视频点播OpenAPI调用示例
  * 以GetVideoPlayAuth接口为例，其他接口请替换相应接口名称及私有参数
  */
+@SuppressWarnings("restriction")
 public class AliyunSign {
     //账号AK信息请填写(必选)
     private static String access_key_id = "LTAIOtHCCpDLXYp8";