UI控制

import com.fastunit.MapList;
import com.fastunit.Unit;
import com.fastunit.context.ActionContext;
import com.fastunit.jdbc.DB;
import com.fastunit.jdbc.DBFactory;
import com.fastunit.jdbc.Type;
import com.fastunit.support.UnitInterceptor;
import com.fastunit.view.unit.UnitComponent;

public class ACIntypeUI implements UnitInterceptor {
 private static final String SQL_AC_INTYPE = "select * from CCII_AC_INTYPE where intypeid = ?";

 public String intercept(ActionContext ac, Unit unit) throws Exception {
  String intype = ac.getRequestParameter("intype", "99");

  UnitComponent uc = (UnitComponent) unit;
  if (intype.equals("99")) {
   intype = (String) ac.getSessionAttribute("ac.base.intype");
  } else {
   ac.setSessionAttribute("ac.base.intype", intype);
  }

  String prefix = GetACType(intype);
  uc.setTitle(prefix + uc.getTitle());

  return unit.write(ac);

 }

 public String GetACType(String intype) {
  String intypename = "";
  try {
   DB db = DBFactory.getDB();
   MapList aclist = db.query(SQL_AC_INTYPE, new String[] { intype },
     new int[] { Type.VARCHAR });
   if (aclist.size() > 0) {
    intypename = aclist.getRow(0).get("intypename");
   } else {
    intypename = "";
   }

  } catch (Exception e) {
   // TODO: handle exception
   return "";
  }

  return intypename;
 }
}

获取到intype后如果刷新，就会丢失，程序对这一过程做了考虑，从而保证系统正常运行。