web.xml:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
Copyright 2004 The Apache Software Foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<servlet>
<servlet-name>GreetingServlet</servlet-name>
<servlet-class>GreetingServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>GreetingServlet</servlet-name>
<url-pattern>/servlet/GreetingServlet</url-pattern>
</servlet-mapping>
</web-app>
index.html:
<html>
<head>
<title>Projava Registration</title>
</head>
<body>
<H1>Welcome</H1>
<form action="/greeting/servlet/GreetingServlet" METHOD="POST">
<p>Your Name <input type="text" size="40" name="name"></p>
<p>Your Email <input type="text" size="40" name="email">
<input type="submit" value="Submit"></p>
</form>
</body>
</html>
GreetingServlet.java:
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class GreetingServlet extends HttpServlet{
protected void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
String name=request.getParameter("name");
String email=request.getParameter("email");
String message=null;
GregorianCalendar calendar=new GregorianCalendar();
if(calendar.get(Calendar.AM_PM)==Calendar.AM){
message="Good Morning";
}else{
message="Good Afternoon";
}
response.setContentType("text/html");
PrintWriter out=response.getWriter();
out.println("<html>");
out.println("<body>");
out.println("<p>"+message+", "+name+"</p>");
out.println("<p> Thanks for registering your email ("+email+") with us.</p>");
out.println("<p> - The Pro java Team.</p>");
out.println("</body>");
out.println("</html>");
out.close();
}
}
第一個Servlet應用
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