submitaction.java

一个学生选课系统

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

import java.util.ArrayList;

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

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 com.student.dao.DataOperate;
import com.student.po.Student;


public class SubmitAction extends Action {
	
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		
		int size =Integer.parseInt(request.getParameter("size"));
		System.out.println(size);
		ArrayList Cid=new ArrayList();//存储所选择的课程
		for(int i=0;i<size;i++){	
			String str=request.getParameter("checkbox"+i);
			if(str!=null) Cid.add(str);//
		}
		HttpSession session=request.getSession();
		String usr=session.getAttribute("usr").toString();//获取选课的学生号
		
		DataOperate.insertCourse(Cid,usr);//往数据库中插入数据
		Student stu=DataOperate.personInfo(usr);
		//session.removeAttribute("stu");
		session.setAttribute("stu", stu);
		return  new ActionForward("/student.jsp");
	}
}