?? listcourseforstu.java
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package com.stuman.service;
import java.util.Iterator;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspWriter;
import com.stuman.dao.CourseDAO;
import com.stuman.dao.DAOFactory;
import com.stuman.domain.Course;
import com.stuman.domain.CourseForStu;
public class ListCourseForStu {
private CourseDAO couDao;
public CourseDAO getCourseDAO() {
return DAOFactory.getInstance().createCourseDAO();
}
public void list(HttpServletRequest request, JspWriter out, String stuid)
throws Exception {
String tmp = (String) request.getParameter("page");
if (tmp != null) {
listpage(request, out, Integer.parseInt(tmp), stuid);
} else {
listpage(request, out, 1, stuid);
}
}
public void listpage(HttpServletRequest request, JspWriter out, int page, String stuid)
throws Exception {
String id, name, prepare, dep, classid, roomid, time, teacher;
couDao = this.getCourseDAO();
List list = couDao.getCourseForStu(stuid);
if (list == null) {
out.print("無可選課程");
return;
}
int total = list.size();
int count = 0;
Iterator it = list.iterator();
CourseForStu cour;
while (count < (page - 1) * 5 && it.hasNext()) {
it.next();
count++;
}
count = 0;
while (it.hasNext() && count < 5) {
cour = (CourseForStu) it.next();
id = cour.getId();
name = cour.getName();
if(cour.getPrepare().equals("0"))
prepare = "無先修課";
else
prepare = cour.getPrepare();
dep = cour.getDep();
classid = cour.getClassid();
roomid = cour.getRoomid();
time = cour.getTime();
teacher = cour.getTeacher();
out.print("<tr>" +
"<td>" + id + "</td>" +
"<td>" + name + "</td>" +
"<td>" + prepare + "</td>" +
"<td>" + dep + "</td>" +
"<td>" + classid + "</td>" +
"<td>" + roomid + "</td>" +
"<td>" + time+ "</td>" +
"<td>" + teacher + "</td>");
out.print("<td><a href=regCourse.do?id="
+ stuid + "&classid="+cour.getClassid()+">注冊</a></td><td>");
count++;
}
out.print("<tr><td colspan=5 align=center>");
out.print("<table width=50% border=0 cellspacing=0><tr>");
if ((page - 1) > 0)
out
.print("<td width=50% colspan='5'> <a href=getcourse.jsp?page="
+ (page - 1) + ">上一頁</a> ");
else
out.print("<td width=50% colspan='5'>上一頁</td>");
if ((page - 1) < (total / 5))
out.print("<td width=50% colspan='5'><a href=getcourse.jsp?page="
else
out.print("<td width=50% colspan='5'>下一頁</td>");
out.print("</tr></table></td></tr>");
out.print("</table>");
}
}
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