添加判断，修改出现的问题

src/main/java/com/cloudcross/ssp/web/dsp/DspBannerController.java

@@ -308,7 +308,9 @@ public class DspBannerController extends SimpleController{
 	                	result.add(map);
 	                }
 	            }
-				obj.put("id", obj.getString("bannerId"));
+				if(obj.containsKey("bannerId")){
+					obj.put("id", obj.getString("bannerId"));
+				}
 				obj.put("dspId", dspId);
 				if(!flag){
                 	list.add((DspBanner)JSONObject.toBean(obj,DspBanner.class));