check6.java

比较简单学生查询系统

package com.fi;
//该servlet主要用于展示怎样通过servlet构建Excel电子表格
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;

public class Check6 extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public Check6() {
		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 {

		
		response.setContentType("application/vnd.ms-excel");
		PrintWriter out=response.getWriter();
		out.println("\tQ1\tQ2\tQ3\tQ4\tTotal");
		out.println("Apples\t78\t87\t67\t68\t=SUM(B2:E2)");
		out.println("Oranges\t57\t65\t33\t98\t=SUM(B3:E3)");
		
		out.flush();
		out.close();
	}

	/**
	 * 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 {

		
		response.setContentType("application/vnd.ms-excel");
		PrintWriter out=response.getWriter();
		out.println("\tQ1\tQ2\tQ3\tQ4\tTotal");
		out.println("Apples\t78\t87\t67\t68\t=SUM(B2:E2)");
		out.println("Oranges\t57\t65\t33\t98\t=SUM(B3:E3)");
		
		out.flush();
		out.close();
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}