qukuanaction.java

struts框架的演示示例,虽然简单但很有启发性,值得一看

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package prj10_1.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

import dao.CustomerDao;
import po.Customer;
import prj10_1.form.CunkuanForm;
import prj10_1.form.QukuanForm;

public class QukuanAction extends Action {

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		QukuanForm qukuanForm = (QukuanForm) form;// TODO Auto-generated method stub
		
		String str = qukuanForm.getMoney();
		double money = Double.parseDouble(str);
		
		Customer cus = (Customer)request.getSession().getAttribute("cus");
		ActionMessages errors = new ActionMessages();
		if(cus.getCbalance()<money){//钱不够取
			ActionMessage error = new ActionMessage("error.qukuan");
			errors.add("qukuan",error);
			this.saveErrors(request, errors);
			return mapping.getInputForward();
		}	
		
		cus.setCbalance(cus.getCbalance() - money);
		CustomerDao cdao = new CustomerDao();
		cdao.updateCustomer(cus);
		
		return new ActionForward("/ope.jsp");

	}
}