.....

src/main/java/cn/com/qmth/examcloud/web/upyun/UpYunClient.java

@@ -151,7 +151,7 @@ public class UpYunClient {
 		Map<String, Object> policyArgs = Maps.newHashMap();
 		policyArgs.put("bucket", bucketName);
 		policyArgs.put("save-key", path);
-		Date expiration = DateUtils.addSeconds(new Date(), 120);
+		Date expiration = DateUtils.addSeconds(new Date(), 600);
 		policyArgs.put("expiration", expiration.getTime() / 1000);
 		policyArgs.put("date", date);
 		policyArgs.put("content-md5", md5);