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<web-app>
<servlet>
  <servlet-name>FirstServlet</servlet-name>
  <servlet-class>servlet.study3.c1.FirstServlet</servlet-class>
</servlet>
<servlet-mapping>
  <servlet-name>FirstServlet</servlet-name>
  <url-pattern>/firstservlet</url-pattern>
</servlet-mapping>
</web-app>

package servlet.study3.c1;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.io.PrintWriter;

import java.io.IOException;

import java.util.*;

public class FirstServlet extends HttpServlet{

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException,IOException{

response.setContentType("text/html");

PrintWriter out = response.getWriter();

out.println("<html><head>");

out.println("<title>Help Page</title></head><body>");

out.println("<h2>Please submit your information</h2>");

out.println("<form method='post' action='/jsp/firstservlet'>");

out.println("<table width=\"400\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");

out.println("<tr>");

out.println("<td>Your First name: </td>");

out.println("<td><input type=\"text\" name=\"firstname\"></td>");

out.println("</tr>");

out.println("<tr>");

out.println("<td>Your Last name:</td>");

out.println("<td><input type=\"text\" name=\"lastname\"></td>");

out.println("</tr>");

out.println("<tr>");

out.println("<td>Your email: </td>");

out.println("<td><input type=\"text\" name=\"email\"></td>");

out.println("</tr>");

out.println("</table>");

out.println("<br>");

out.println("<input type=\"submit\" name=\"Submit\" value=\"submit\">");

out.println("</form>");

out.println("</body></html>");

}

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException,IOException{

Enumeration paramNames = request.getParameterNames();

String parName;

boolean emptyEnum = false;

if(!paramNames.hasMoreElements())

emptyEnum = true;

response.setContentType("text/html");

PrintWriter out = response.getWriter();

out.println("<html><head>");

out.println("<title>Submitted Parameters</title></head><body>");

if(emptyEnum){

out.println("<h2>Sorry, the request does net contain any parameters</h2>");

}else{

out.println("<h2>Here are the submitted parameter values</h2>");

}

while(paramNames.hasMoreElements()){

parName = (String)paramNames.nextElement();

out.println("<strong>" + parName + "</strong> :" + request.getParameter(parName));

out.println("<br>");

}

out.println("</body></html>");

}

posted on 2005-11-11 23:13 方佳瑋閱讀(1332) 評(píng)論(0) 編輯收藏所屬分類: Servlet

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