KERNEL-5056 fix: 使用自定义分隔符

fine-socketio/src/main/java/com/fr/third/socketio/handler/EncoderHandler.java

@@ -29,7 +29,6 @@ import java.util.jar.Manifest;
 
 import com.fr.third.socketio.Configuration;
 import com.fr.third.socketio.Transport;
-import com.fr.third.springframework.beans.propertyeditors.StringArrayPropertyEditor;
 import io.netty.util.concurrent.Future;
 import io.netty.util.concurrent.GenericFutureListener;
 import org.slf4j.Logger;
@@ -81,6 +80,8 @@ public class EncoderHandler extends ChannelOutboundHandlerAdapter {
 
     private static final Logger log = LoggerFactory.getLogger(EncoderHandler.class);
 
+    private static final String SEPARATOR_COMMA = ",";
+
     private final PacketEncoder encoder;
 
     private String version;
@@ -208,7 +209,7 @@ public class EncoderHandler extends ChannelOutboundHandlerAdapter {
         if (!isEmpty(allowHeaders)) {
             String header = res.headers().get(HttpHeaderNames.ACCESS_CONTROL_ALLOW_HEADERS);
             if (!isEmpty(header)) {
-                header = header.trim() + StringArrayPropertyEditor.DEFAULT_SEPARATOR + configuration.getAccessControlAllowHeaders();
+                header = header.trim() + SEPARATOR_COMMA + configuration.getAccessControlAllowHeaders();
                 res.headers().set(HttpHeaderNames.ACCESS_CONTROL_ALLOW_HEADERS, header);
             } else {
                 res.headers().set(HttpHeaderNames.ACCESS_CONTROL_ALLOW_HEADERS, configuration.getAccessControlAllowHeaders());