[queryData][修改]:NullPointer异常处理

mallinkService/src/main/java/com/iformall/service/impl/WxChartServiceImpl.java

@@ -84,14 +84,18 @@ public class WxChartServiceImpl implements WxChartDataService {
     public ResultData queryData(Map<String, String> paramsMap) {
         String tenantId = paramsMap.get("tenantId");
         Integer chart = Integer.valueOf(paramsMap.get("chart"));
-        String startdate = paramsMap.get("startdate") + " 00:00:00";
-        String enddate = paramsMap.get("enddate") + " 23:59:59";
+        String startdate = paramsMap.get("startdate");
+        String enddate = paramsMap.get("enddate");
 
         if (StringUtils.isEmpty(startdate)) {
             startdate = DateUtils.getSystemTime("yyyy-MM-dd") + " 00:00:00" ;
+        } else {
+            startdate = startdate + " 00:00:00";
         }
         if (StringUtils.isEmpty(enddate)) {
             enddate = DateUtils.getSystemTime("yyyy-MM-dd") + " 23:59:59";
+        } else {
+            enddate = enddate + " 23:59:59";
         }
 
         //出租率