不合理的网站,网页设计实验报告步骤,辽宁营销型网站建设,百度关键词查询工具免费使用重定向方法sendRedirect()将用户重新定向到一个JSP页面或另一个Servlet。 RequestDispatcher对象调用void forward(ServletRequest request,ServletResponse response) 方法可以将用户对当前JSP页面或Servlet的请求转发给RequestDispatcher对象所指定的JSP页面或Servlet。 …使用重定向方法sendRedirect()将用户重新定向到一个JSP页面或另一个Servlet。 RequestDispatcher对象调用void forward(ServletRequest request,ServletResponse response) 方法可以将用户对当前JSP页面或Servlet的请求转发给RequestDispatcher对象所指定的JSP页面或Servlet。 jsp文件如下 1 % page contentTypetext/html;charsetGB2312 %
2 HTMLBODY Font size2
3 FORM actionverifyYourMessage methodpost
4 输入姓名:Input Typetext namename
5 BR输入年龄:Input Typetext nameage
6 BRInput Typesubmit value提交
7 /FORM/BODY/HTML 两个Java文件如下 1 package star.moon;2 import java.io.*;3 import javax.servlet.*;4 import javax.servlet.http.*;5 public class Verify extends HttpServlet6 { public void init(ServletConfig config) throws ServletException7 {super.init(config);8 }9 public void doPost(HttpServletRequest request,HttpServletResponse response)
10 throws ServletException,IOException
11 { String namerequest.getParameter(name); //获取客户提交的信息
12 String agerequest.getParameter(age); //获取客户提交的信息
13 if(name.length()0||namenull)
14 { response.sendRedirect(input.jsp); //重定向
15 }
16 else if(age.length()0||namenull)
17 { response.sendRedirect(input.jsp); //重定向
18 }
19 else if(age.length()0)
20 { try { int numberAgeInteger.parseInt(age);
21 if(numberAge0||numberAge150)
22 { response.sendRedirect(input.jsp);
23 }
24 else
25 { RequestDispatcher dispatcher
26 request.getRequestDispatcher(forYouShowMessage);
27 dispatcher.forward(request, response); //转发
28 }
29 }
30 catch(NumberFormatException e)
31 { response.sendRedirect(input.jsp);
32 }
33 }
34 }
35 public void doGet(HttpServletRequest request,HttpServletResponse response)
36 throws ServletException,IOException
37 { doPost(request,response);
38 }
39 } 1 package star.moon;2 import java.io.*;3 import javax.servlet.*;4 import javax.servlet.http.*;5 public class ShowMessage extends HttpServlet6 { public void init(ServletConfig config) throws ServletException7 {super.init(config);8 }9 public void doPost(HttpServletRequest request,HttpServletResponse response)
10 throws ServletException,IOException
11 { response.setContentType(text/html;charsetGB2312);
12 PrintWriter outresponse.getWriter();
13 String namerequest.getParameter(name); //获取客户提交的信息
14 String agerequest.getParameter(age); //获取客户提交的信息
15 try{ byte bb[]name.getBytes(ISO-8859-1);
16 namenew String(bb,gb2312);
17 }
18 catch(Exception exp){}
19 out.print(Font colorblue size4您的姓名是);
20 out.print(name);
21 out.print(BRFont colorpink size3您的年龄是);
22 out.print(age);
23 }
24 public void doGet(HttpServletRequest request,HttpServletResponse response)
25 throws ServletException,IOException
26 { doPost(request,response);
27 }
28 } web.xml文件如下 1 ?xml version1.0 encodingISO-8859-1?2 !--3 Licensed to the Apache Software Foundation (ASF) under one or more4 contributor license agreements. See the NOTICE file distributed with5 this work for additional information regarding copyright ownership.6 The ASF licenses this file to You under the Apache License, Version 2.07 (the License); you may not use this file except in compliance with8 the License. You may obtain a copy of the License at9
10 http://www.apache.org/licenses/LICENSE-2.0
11
12 Unless required by applicable law or agreed to in writing, software
13 distributed under the License is distributed on an AS IS BASIS,
14 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 See the License for the specific language governing permissions and
16 limitations under the License.
17 --
18 web-app xmlnshttp://xmlns.jcp.org/xml/ns/javaee
19 xmlns:xsihttp://www.w3.org/2001/XMLSchema-instance
20 xsi:schemaLocationhttp://xmlns.jcp.org/xml/ns/javaee
21 http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd
22 version3.1
23 metadata-completetrue
24
25 display-nameWelcome to Tomcat/display-name
26 description
27 Welcome to Tomcat
28 /description
29
30
31
32
33 servlet
34 servlet-namegetSquare/servlet-name
35 servlet-classstar.moon.Verify/servlet-class
36 /servlet
37 servlet-mapping
38 servlet-namegetSquare/servlet-name
39 url-pattern/verifyYourMessage/url-pattern
40 /servlet-mapping
41
42
43 servlet
44 servlet-namegetSquareOrCubic/servlet-name
45 servlet-classstar.moon.ShowMessage/servlet-class
46 /servlet
47 servlet-mapping
48 servlet-namegetSquareOrCubic/servlet-name
49 url-pattern/forYouShowMessage/url-pattern
50 /servlet-mapping
51
52 /web-app 转载于:https://www.cnblogs.com/xh0102/p/5721659.html
