/**

      * 日期格式转换

      * @throws ParseException

      */

     public String dateformat(String  date,String tablename) throws ParseException{

          String dateback1 = null;

          if(date!=null){

              if(tablename.equals("油气田开发基本数据")){

                  Date datetemp = DateUtil.parse(date,"yyyyMM");

                  dateback1    = DateUtil.format(datetemp, "yyyy-MM");

              } else if(tablename.equals("油气藏基本数据")){

                  Date datetemp = DateUtil.parse(date,"yyyyMM");

                  dateback1    = DateUtil.format(datetemp, "yyyy-MM");

              }else{

              Date datetemp = DateUtil.parse(date,"MM/dd/yyyy HH:mm:ss");

              dateback1    = DateUtil.format(datetemp, "yyyy-MM-dd");

              }

          }

         return dateback1;

     }