choicecourse.java

简单的学生管理系统,使用的是SQL2005数据库

package servlet;

import java.io.IOException;
import java.io.PrintWriter;

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

import sql.SQLChoiceCourse;

public class ChoiceCourse extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ChoiceCourse() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
        HttpSession session = request.getSession();
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		String id = (String)session.getAttribute("id");
		String id1 = (String)request.getParameter("id");
		System.out.println("*************"+id);
		System.out.println("#############"+id1);
		
		SQLChoiceCourse sqlc = new SQLChoiceCourse(); 
		boolean bool = sqlc.methodChoice(id, id1);
		if(bool)
		{
			response.sendRedirect("http://127.0.0.1:8080/project/Student/ChoiceCourse.jsp");
		}
		else
		{
			out.println("閫夎