get protocol

src/main/java/cn/quantgroup/xyqb/controller/external/user/WeChatController.java

@@ -19,6 +19,7 @@ import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.TypeReference;
 import java.util.HashMap;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.codec.binary.Base64;
 import org.apache.commons.lang.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -243,6 +244,12 @@ public class WeChatController implements IBaseController {
   ) {
     try {
       String schema = getProtocol();
+      try {
+        extData = new String(Base64.decodeBase64(extData), "UTF-8");
+      } catch (Exception ex) {
+        extData = "";
+      }
+
       LOGGER.info("从微信extdata版本接口进入：{}, extData:{}", schema, extData);
       if (StringUtils.isEmpty(extData)) {
         // 从code获取token