1 package bilibili.servlet.study;
2
3 import java.io.IOException;
4 import java.io.PrintWriter;
5
6 import javax.servlet.ServletException;
7 import javax.servlet.http.HttpServlet;
8 import javax.servlet.http.HttpServletRequest;
9 import javax.servlet.http.HttpServletResponse;
10
11 /**
12 * Servlet implementation class ServletDemo1
13 */
14 public class ServletDemo1 extends HttpServlet {
15 private static final long serialVersionUID = 1L;
16 /**
17 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
18 * response)
19 */
20 protected void doGet(HttpServletRequest request, HttpServletResponse response)
21 throws ServletException, IOException {
22 // TODO Auto-generated method stub
23 response.setContentType("text/html");
24 response.setCharacterEncoding("UTF-8");
25 PrintWriter out = response.getWriter();
26 // println中的""需要用/转义下
27 out.println(
28 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Strict//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">");
29 out.println("<html>");
30 out.println("<head>");
31 out.println("<title>ServletDemo1</title>");
32 out.println("</head>");
33 out.println("<body>");
34 out.println("<h1>");
35 out.println(this.getClass());
36 out.println("</h1>");
37 out.println("<body>");
38 out.println("</html>");
39 out.close();
40 out.flush();
41 }
42 /**
43 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
44 * response)
45 */
46 protected void doPost(HttpServletRequest request, HttpServletResponse response)
47 throws ServletException, IOException {
48 // TODO Auto-generated method stub
49 doGet(request, response);
50 }
51 }
doGet()和doPost()方法的区别:
doGet():1.常用来查询信息 2.提交的查询信息显示在浏览器的地址栏中 3.以get方式提交的网址有长度限制
doPost():1提交大量信息 2.以post方式提交数据是，数据信息不会显示在浏览器的地址栏中
时间： 2024-10-25 14:39:14