allteachers.java

来自「这是学生管理网站的java源码,可以管理学生信息」· Java 代码 · 共 58 行

package org.myservlets;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

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

import org.myJavabeans.DataConnection;

public class Allteachers extends HttpServlet {

	/**
	 * 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 {
doPost(request,response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @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 doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		DataConnection d=new DataConnection();
		List list=d.SeeAllTeacher();
		if(list!=null){
			request.setAttribute("teachers", list);
			request.getRequestDispatcher("/allteacher.jsp").forward(request,
					response);
		}else{
			request.setAttribute("jsp", "index.jsp");
			request.setAttribute("message", "暂时没有教师信息！");
			request.getRequestDispatcher("/error.jsp").forward(request,
					response);
		}
	}

}