u03studentaction.java

持久层hibernate技术使用的一个例子

package cn.hope.front.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

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 org.apache.struts.actions.DispatchAction;
import org.apache.struts.validator.DynaValidatorForm;


import cn.hope.front.pojo.Student;

public class U03StudentAction extends DispatchAction {
	public ActionForward find(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		ActionMessages errors = new ActionMessages();
		Student student=new Student();
		HttpSession session=request.getSession();
		student= (Student) session.getAttribute("zhtname");

		try
		{		    
		    if(request.getParameter("modify")!= null)
		    {
		    	DynaValidatorForm u03UpdateInfoForm=(DynaValidatorForm)form;
		    	u03UpdateInfoForm.set("student",student);
		    	request.getSession().setAttribute("u03UpdateInfoForm",u03UpdateInfoForm);
		    	return mapping.findForward("modify");
		    }
		    else
		    {
		    	request.getSession().setAttribute("zhiliao",student);
		    	return mapping.findForward("find");
		    }
		}
		catch (Exception e) {
			log.error(e);
			e.printStackTrace();
			ActionMessage am = new ActionMessage(e.toString());
			errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
					"errors.u07exception"));
			errors.add(ActionMessages.GLOBAL_MESSAGE, am);
			saveErrors(request, errors);
			return mapping.findForward("errorPage");
		}
		
	}
}