fix: 优化SimpleUserTransmit,数据编码改为base64
diff --git a/common/core/pom.xml b/common/core/pom.xml
index dcfe763..ad793bd 100644
--- a/common/core/pom.xml
+++ b/common/core/pom.xml
@@ -55,6 +55,11 @@
     </dependency>
     
     <dependency>
+      <groupId>commons-codec</groupId>
+      <artifactId>commons-codec</artifactId>
+    </dependency>
+    
+    <dependency>
       <groupId>com.alibaba</groupId>
       <artifactId>fastjson</artifactId>
     </dependency>