修正拼写错误

src/main/java/cn/chjyj/szwh/controller/admin/AdminGoodsClassifyController.java

@@ -40,7 +40,7 @@ public class AdminGoodsClassifyController extends BaseController {
     public JSONObject clist(@RequestBody String jsonStr){
         JSONObject request =JSONObject.parseObject(jsonStr);
         Map qmap = new HashMap<>();//组装查询条件
-        String topClass=request.getString("top_clas");
+        String topClass=request.getString("top_class");
         if(StringUtils.isNotBlank(topClass)){
             qmap.put("top_class",topClass);
         }