优化教师更新逻辑

src/main/java/com/xjrsoft/module/hikvision/util/DataUtil.java

@@ -422,7 +422,8 @@ public class DataUtil {
             paramJson.addProperty("personType", 1);
 
             int gender;
-            switch (objectMap.get("gender").toString()) {
+            String genderData = objectMap.get("gender") == null ? "" : objectMap.get("gender").toString();
+            switch (genderData) {
                 case "SB10001":
                     gender = 1;
                     break;