📄 queryteacherofcoursesofclassaction.java

📁 学生信息管理系统

💻 JAVA

字号:

package action;
import java.io.*;
import java.util.*;
import vo.TeachingVO;
import dao.TeachingDAO;
import util.CharsetExchange;
import javax.servlet.*;
import javax.servlet.http.*;
public class QueryTeacherOfCoursesOfClassAction extends HttpServlet
{
	public void doGet(HttpServletRequest request,HttpServletResponse response)throws IOException ,ServletException
	{
		String class_id=CharsetExchange.ISOToGB(request.getParameter("classes"));
		String term=request.getParameter("term");
		TeachingDAO teachingdao=new TeachingDAO();
		boolean isexist=teachingdao.checkClass(class_id,term);
		if(!isexist)
		{
			response.setContentType("text/html");
			response.setCharacterEncoding("gb2312");
			PrintWriter out=response.getWriter();
			out.println("<html>");
			out.println("<head><meta http-equiv=refresh content=2;url=QueryTeacherOfCoursesOfClass.jsp>");
			out.println("<title>查询某个班级的教师任课信息</title></head>");
			out.println("<body background=2.jpg>");
			out.println("<br><br><br>");
			out.println("<h1 align=center ><font color=red>对不起，该班级还未开设，无法查询</font></h1><hr>");
			out.println("<br><br>");
			out.println("</body>");
			out.println("</html>");
		}
		else
		{
			ArrayList teachingInfors=(ArrayList)teachingdao.getTeachingByClassId(class_id);
			HttpSession session=request.getSession(true);
			session.setAttribute("teachingInforofclass",teachingInfors);
			this.getServletContext().getRequestDispatcher("/QueryTeacherOfCoursesOfClassResult.jsp").forward(request,response);
		}
	}
	public void doPost(HttpServletRequest request,HttpServletResponse response)throws IOException ,ServletException
	{
		doGet(request,response);
	}
}

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