queryoneteachertag.java

学生信息管理系统

package tagext;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;
import java.io.IOException;
import java.util.ArrayList;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletRequest;
import vo.TeacherVO;
import dao.*;
public class QueryOneTeacherTag extends TagSupport
{

	public int doStartTag()throws JspException
	{
		JspWriter out=pageContext.getOut();
		HttpServletRequest request = (HttpServletRequest)pageContext.getRequest();
		HttpSession session=request.getSession(true);
		if(session.getAttribute("teacherById") != null)
		{	
			
			try
			{
			
				TeacherVO teacher = (TeacherVO)session.getAttribute("teacherById");
				out.print("<table align=center border=1>");
				out.print("<form>");
				out.print("<tr>");
		    	out.print("<td align=center><font size=5 color=blue>教师编号</td><td align=center><font size=5 color=blue>"+teacher.getTeacherId()+"</td>");
		    	out.print("</tr>");
		    	out.print("<tr>");
		    	out.print("<td align=center><font size=5 color=blue>教师姓名</td><td align=center><font size=5 color=blue>"+teacher.getName()+"</td>");
		    	out.print("</tr>");
		    	out.print("<tr>");
		    	out.print("<td align=center><font size=5 color=blue>系名称</td><td align=center><font size=5 color=blue>"+teacher.getdepartment_id()+"</td>");
		    	out.print("</tr>");
		    	out.print("<tr>");
		    	out.print("<td align=center><font size=5 color=blue>性别<font size=5 color=blue></td><td align=center ><font size=5 color=blue>"+teacher.getSex()+"</td>");
		    	out.print("</tr>");
		    	out.print("<tr>");
		    	out.print("<td align=center><font size=5 color=blue>电话</td><td align=center><font size=5 color=blue>"+teacher.getPhone()+"</td>");
		    	out.print("</tr>");
		    	out.print("<tr>");
		    	out.print("<td align=center><font size=5 color=blue>Email</td><td align=center><font size=5 color=blue>"+teacher.getEmail()+"</td>");
		    	out.print("</tr>");
		    
		    	out.print("</form>");
		    	out.print("</table>");	
			}
		    catch(IOException ioe)
		    {
		    	ioe.printStackTrace();
		    }
		}
		else if(session.getAttribute("teacherByName") != null)
		{	
			
			try
			{
			
				ArrayList teacher = (ArrayList)session.getAttribute("teacherByName");
				out.print("<table align=center border=1>");
				out.println("<tr>");
				out.println("<td align=center><font size=5 color=blue>教师编号");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>教师姓名");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>系部编号");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>性别");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>电话");
				out.println("</td>");
				out.println("<td align=center><font size=5 color=blue>Email");
				out.println("</td>");
				out.println("</tr>");
				
				for(int i=0;i<teacher.size();i++)
				
				{
					TeacherVO teachervo=(TeacherVO)teacher.get(i);
					out.println("<tr>");
					out.println("<td align=center><font size=5 color=blue>"+teachervo.getTeacherId());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+teachervo.getName());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+teachervo.getdepartment_id());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+teachervo.getSex());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+teachervo.getPhone());
					out.println("</td>");
					out.println("<td align=center><font size=5 color=blue>"+teachervo.getEmail());
					out.println("</td>");
				
					out.println("</tr>");
				}
		    	out.println("</table>");	
			}
		    catch(IOException ioe)
		    {
		    	ioe.printStackTrace();
		    }
		}		    	
		/*
		if()
		{
				JspWriter out=this.context.getOut();
				try
		    	{
		    		out.println("</select>");
		    	}
		    	catch(IOException ioe)
		    	{
		    		ioe.printStackTrace();
		    	}		    	
		}
	*/
    	return this.SKIP_BODY;
	}
	
    public int doEndTag()throws JspException
    {
    	return this.EVAL_PAGE;
    }
}