bug: [none] fixbug NPE

pcloud-service-book/src/main/java/com/pcloud/book/applet/facade/AppletRecordFacade.java

@@ -27,6 +27,7 @@ import org.springframework.web.bind.annotation.RestController;
 
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 
 /**
  * (AppletRecord)表控制层
@@ -136,6 +137,9 @@ public class AppletRecordFacade {
     @RequestMapping(value = "/addFootstep", method = RequestMethod.POST)
     public ResponseDto<Void> addFootstep(@CookieValue("userInfo") String userInfo,
                                          @RequestBody AddFootstepDto addFootstepDto) {
+        if (!Optional.ofNullable(addFootstepDto).map(AddFootstepDto::getTypeName).isPresent()) {
+            return new ResponseDto<>();
+        }
         Long wechatUserId = Cookie.getId(userInfo, Cookie._WECHAT_USER_ID);
         Integer fromType = addFootstepDto.getFromType();
         String typeName = addFootstepDto.getTypeName();