takeaction.java

网上银行

package prostruts;

import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.Action;
import org.apache.commons.logging.*;
import javax.servlet.http.HttpSession;
import javax.naming.*;
import proejblayer.BusinessHome;
import proejblayer.Business;
import javax.rmi.PortableRemoteObject;
import org.apache.struts.action.ActionMessages;

public class takeAction extends Action {
    public ActionForward execute(ActionMapping mapping, ActionForm form,
                                 HttpServletRequest request,
                                 HttpServletResponse response) {
        moneyForm moneyForm = (moneyForm) form;
       String strres="";
       Log log=LogFactory.getLog("Log");
      log.trace("This is trace message from BusinessHome");
      int money=moneyForm.getMoney();
      HttpSession session=request.getSession();
      String accountNo=(String)session.getAttribute("AccountNo");
      if (money == 0) {
          strres = "请输取款金额!";
          request.setAttribute("result", strres);
          return new ActionForward(mapping.getInput());
      }else{
          int intres=actionTake(accountNo,money);
          switch (intres) {
          case -1:
              strres = "余额不足";
              break;
          case 0:
              strres = "取款不成功";
              break;
          case 1:
              strres = "取款成功";
              break;
          }

      }
      org.apache.struts.util.MessageResources messages=getResources(request);
      ActionMessages errors=new ActionMessages();
      request.setAttribute("result",strres);
      return mapping.findForward("main");
    }
    public int actionTake(String no,int money){
        int res=0;
        try{
            Context ctx=new InitialContext();
             Object obj=ctx.lookup("Business");
             BusinessHome home=(BusinessHome)PortableRemoteObject.narrow(obj,
                               BusinessHome.class);
             Business business=home.create();
            res= business.takeMoney(no,money);
        }catch(Exception ex){
            ex.printStackTrace();
        }
        return res;
        }
    }