firstServlet 写一个最基本的servlet程序

BabyDuncan · 发表于 2013-2-7 20:51:09

Servlet代码为：
package com.babyDuncan.Servlet;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 firstServlet extends HttpServlet {@Overrideprotected long getLastModified(HttpServletRequest req) {// TODO Auto-generated method stubthis.log("执行getLastModified方法");return -1;}@Overridepublic void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.log("执行doGet方法！");doExecete(request, response);}@Overridepublic void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.log("执行doPost方法！");doExecete(request, response);}private void doExecete(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {// TODO Auto-generated method stub// 设置request和response的编码request.setCharacterEncoding("UTF-8");response.setCharacterEncoding("UTF-8");// 获取request的URIString requestURI = request.getRequestURI();// 获取request的方法，是post还是getString requestMethod = request.getMethod();// 获取request的参数String param = request.getParameter("param");//设置返回的数据类型response.setContentType("text/html");PrintWriter out = response.getWriter();out.println("<html><head><title>babyDuncan 's Servelt</title></head><body>");out.println("以" + requestMethod + "方法访问页面，取到的参数为" + param );out.println("<form action='" +requestURI+ "' method = 'get' >" +"<input type='text' name='param' value='input the param!'/>" +"<input type='submit' value='以get方式访问页面'"+requestURI+ "/></form>" );out.println("<form action='" +requestURI+ "' method = 'post' >" +"<input type='text' name='param' value='input the param!'/>" +"<input type='submit' value='以post方式访问页面'"+requestURI+ "/></form>" );out.println("<script>document.write('本页最后的访问时间是'+ document.lastModified);</script>");out.println("</body>");out.println("</html>");out.flush();out.close();}}

配置文件为：
<servlet> <servlet-name>firstServlet</servlet-name> <servlet-class>com.babyDuncan.Servlet.firstServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>firstServlet</servlet-name> <url-pattern>/servlet/firstServlet.jsp</url-pattern> <url-pattern>/wocao.ppp</url-pattern> </servlet-mapping>
基本就是这些，部署之后，运行结果见附件图片!

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firstServlet 写一个最基本的servlet程序

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