diff --git a/app/src/main/java/com/pukka/jiecheng/device/DeviceIdentityProvider.java b/app/src/main/java/com/pukka/jiecheng/device/DeviceIdentityProvider.java
index b066e4d..08bd38b 100755
--- a/app/src/main/java/com/pukka/jiecheng/device/DeviceIdentityProvider.java
+++ b/app/src/main/java/com/pukka/jiecheng/device/DeviceIdentityProvider.java
@@ -9,7 +9,7 @@ import com.pukka.jiecheng.config.AppConfiguration;
 import com.pukka.libcore.boxShared.BoxSharedParamsUtils;
 import com.pukka.libcore.utils.LogUtils;
 
-import java.nio.charset.StandardCharsets;
+import java.nio.charset.Charset;
 import java.security.MessageDigest;
 import java.util.Locale;
 
@@ -87,7 +87,7 @@ public class DeviceIdentityProvider {
                 return "";
             }
             MessageDigest digest = MessageDigest.getInstance("MD5");
-            byte[] hashBytes = digest.digest(source.getBytes(StandardCharsets.UTF_8));
+            byte[] hashBytes = digest.digest(source.getBytes(Charset.forName("UTF-8")));
             int usedBytes = Math.min(MD5_TRUNCATED_BYTES, hashBytes.length);
             if (usedBytes <= 0) {
                 return "";
@@ -112,7 +112,7 @@ public class DeviceIdentityProvider {
                 return "";
             }
             MessageDigest digest = MessageDigest.getInstance("SHA-256");
-            byte[] hashBytes = digest.digest(source.getBytes(StandardCharsets.UTF_8));
+            byte[] hashBytes = digest.digest(source.getBytes(Charset.forName("UTF-8")));
             StringBuilder hexBuilder = new StringBuilder(hashBytes.length * 2);
             for (byte hashByte : hashBytes) {
                 hexBuilder.append(String.format(Locale.ROOT, "%02X", hashByte));
diff --git a/app/src/main/java/com/pukka/jiecheng/utils/UrlParamBuilder.java b/app/src/main/java/com/pukka/jiecheng/utils/UrlParamBuilder.java
index 107a7b4..a967af1 100755
--- a/app/src/main/java/com/pukka/jiecheng/utils/UrlParamBuilder.java
+++ b/app/src/main/java/com/pukka/jiecheng/utils/UrlParamBuilder.java
@@ -1,8 +1,8 @@
 package com.pukka.jiecheng.utils;
 
+import java.io.UnsupportedEncodingException;
 import java.util.Map;
 import java.net.URLEncoder;
-import java.nio.charset.StandardCharsets;
 
 public class UrlParamBuilder {
 
@@ -60,9 +60,15 @@ public class UrlParamBuilder {
                     urlBuilder.append("&");
                 }
 
-                urlBuilder.append(URLEncoder.encode(entry.getKey(), StandardCharsets.UTF_8))
+                try {
+                    urlBuilder.append(URLEncoder.encode(entry.getKey(), "UTF-8"))
                         .append("=")
-                        .append(URLEncoder.encode(entry.getValue(), StandardCharsets.UTF_8));
+                        .append(URLEncoder.encode(entry.getValue(), "UTF-8"));
+                } catch (UnsupportedEncodingException e) {
+                    urlBuilder.append(entry.getKey())
+                        .append("=")
+                        .append(entry.getValue());
+                }
             }
         }
 
diff --git a/app/src/main/java/com/pukka/jiecheng/video/utils/ContentDetailUtils.java b/app/src/main/java/com/pukka/jiecheng/video/utils/ContentDetailUtils.java
index dfb0a5a..3d9aaff 100755
--- a/app/src/main/java/com/pukka/jiecheng/video/utils/ContentDetailUtils.java
+++ b/app/src/main/java/com/pukka/jiecheng/video/utils/ContentDetailUtils.java
@@ -20,7 +20,6 @@ import com.pukka.jiecheng.R;
 import com.pukka.libcore.fresco.PkSimpleDraweeView;
 import com.pukka.libcore.utils.LogUtils;
 
-import java.nio.charset.StandardCharsets;
 import java.util.Locale;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
diff --git a/day.code-workspace b/day.code-workspace
new file mode 100644
index 0000000..f1d6e8a
--- /dev/null
+++ b/day.code-workspace
@@ -0,0 +1,11 @@
+{
+	"folders": [
+		{
+			"path": "../../Desktop/tv.huashi.jetsenx.jetsenfilx.jsttvday/day"
+		},
+		{
+			"path": "."
+		}
+	],
+	"settings": {}
+}
\ No newline at end of file
diff --git a/libcore/src/main/java/com/pukka/libcore/cipher/HMacShaUtils.java b/libcore/src/main/java/com/pukka/libcore/cipher/HMacShaUtils.java
index 0c895a0..f91ff9f 100755
--- a/libcore/src/main/java/com/pukka/libcore/cipher/HMacShaUtils.java
+++ b/libcore/src/main/java/com/pukka/libcore/cipher/HMacShaUtils.java
@@ -1,6 +1,6 @@
 package com.pukka.libcore.cipher;
 
-import java.nio.charset.StandardCharsets;
+import java.nio.charset.Charset;
 import java.security.InvalidKeyException;
 import java.security.NoSuchAlgorithmException;
 
@@ -29,7 +29,7 @@ public class HMacShaUtils {
             SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(), HMAC_SHA256_ALGORITHM);
             Mac mac = Mac.getInstance(HMAC_SHA256_ALGORITHM);
             mac.init(signingKey);
-            return mac.doFinal(data.getBytes(StandardCharsets.UTF_8));
+            return mac.doFinal(data.getBytes(Charset.forName("UTF-8")));
         } catch (NoSuchAlgorithmException e) {
             e.printStackTrace();
         } catch (InvalidKeyException e) {
@@ -51,7 +51,7 @@ public class HMacShaUtils {
             SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(), HMAC_SHA1_ALGORITHM);
             Mac mac = Mac.getInstance(HMAC_SHA1_ALGORITHM);
             mac.init(signingKey);
-            return mac.doFinal(data.getBytes(StandardCharsets.UTF_8));
+            return mac.doFinal(data.getBytes(Charset.forName("UTF-8")));
         } catch (Exception ex) {
             ex.printStackTrace();
         }
diff --git a/libcore/src/main/java/com/pukka/libcore/cipher/Md5Utils.java b/libcore/src/main/java/com/pukka/libcore/cipher/Md5Utils.java
index 6e612b6..9370e89 100755
--- a/libcore/src/main/java/com/pukka/libcore/cipher/Md5Utils.java
+++ b/libcore/src/main/java/com/pukka/libcore/cipher/Md5Utils.java
@@ -2,7 +2,7 @@ package com.pukka.libcore.cipher;
 
 import com.pukka.libcore.utils.ByteConversionUtils;
 
-import java.nio.charset.StandardCharsets;
+import java.nio.charset.Charset;
 import java.security.MessageDigest;
 
 /**
@@ -61,7 +61,7 @@ public class Md5Utils {
     public static String encrypt(String message) {
         String md5str = "";
         try {
-            md5str = encrypt(message.getBytes(StandardCharsets.UTF_8));
+            md5str = encrypt(message.getBytes(Charset.forName("UTF-8")));
         } catch (Exception e) {
             e.printStackTrace();
         }