queryexaminformationbydatetag.java

学生信息管理系统

package tagext;
import java.io.*;
import java.util.*;
import vo.ExamVO;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.tagext.TagSupport;
public class QueryExamInformationByDateTag extends TagSupport
{
	public int doStartTag()throws JspException
	{
		JspWriter out=pageContext.getOut();
		HttpServletRequest request =(HttpServletRequest)pageContext.getRequest();
		HttpSession session=request.getSession(true);
		if(session.getAttribute("examtime")!=null)
		{
			try
			{
				ArrayList exams=(ArrayList)session.getAttribute("examtime");
				out.println("<table align=center border=1>");
				out.println("<tr>");
				out.println("<td align=center><font size=5 color=blue>课程号");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>学期");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>监考教师");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>学号");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>考试时间");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>考试类型");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>考试地址");
				out.println("</td>");
				out.println("</tr>");
				
				for(int i=0;i<exams.size();i++)
				
				{
					ExamVO examvo=(ExamVO)exams.get(i);
					out.println("<tr>");
					out.println("<td align=center><font size=5 color=blue>"+examvo.getCourseId());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+examvo.getTerm());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+examvo.getTeacherId());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+examvo.getStudentId());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+examvo.getExamTime());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+examvo.getExamType());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+examvo.getAddress());
					out.println("</td>");
					out.println("</tr>");
				}
								
				out.println("</table>");
			}
			catch(IOException ioe)
		    {
		    	ioe.printStackTrace();
		    
					
			}
		}
		return this.SKIP_BODY;
	}
	public int doEndTag()throws JspException
	{
		return this.EVAL_PAGE;
	}
}