将null数据也返回给前端

bi-server/src/main/java/com/usoftchina/bi/server/service/chart/ShowPieService.java

@@ -134,7 +134,7 @@ public class ShowPieService {
         while (itX.hasNext()){
             String xdata = (String)itX.next();
             if ("".equals(xdata) || xdata == null){
-                continue;
+                //continue;
             }
             double valueOne = 0;
             String valueOnes = null;