 |
|
|
 首页 |
名片设计 CorelDRAW Illustrator AuotoCAD Painter 其他软件 Photoshop Fireworks Flash |
|
import java.io.*; import java.text.*; //MessageFormat import javax.servlet.*; import javax.servlet.http.*; public class HelloServlet extends HttpServlet{ //页面标题 protected static final String strTitle = "Servlet基础例程 - HelloServlet"; //页眉 protected static final String strHeader = "<html>"+ "<head>"+ "<meta http-equiv=""Content-Type"" content=""text/html; charset=gb2312"">"+ "<title>{0}</title>"+ "</head>"+ "<body>"; //页脚 protected static final String strFooter = "</body>"+ "</html>"; //表单 protected static final String strForm = "<form action=""{0}"" method=""post"">"+ "您尊姓大名：<input type=""text"" name=""name"">"+ "<input type=""submit"" name=""submit"" value=""提交"">"+ "</form>"; protected static final String strHello = "您好，{0}，欢迎来到Servlet/JSP世界！"; //出错信息 protected static final String strError = "<h2><font color=""#ff0000"">{0}</font></h2>"; protected void doGet(HttpServletRequest req,HttpServletResponse resp) throws ServletException,IOException{ process(req,resp); } protected void doPost(HttpServletRequest req,HttpServletResponse resp) throws ServletException,IOException{ process(req,resp); } protected void process(HttpServletRequest req,HttpServletResponse resp) throws ServletException,IOException{ try{ String submit = req.getParameter("submit"); if(submit==null) printForm(req,resp); else printHello(req,resp); } catch(Exception e){ printError(e.toString(),req,resp); } } protected void printForm(HttpServletRequest req,HttpServletResponse resp) throws ServletException,IOException{ //在使用PrintWriter前得先设置Content Type resp.setContentType("text/html"); PrintWriter out = resp.getWriter(); //输出页眉 out.print(MessageFormat.format(strHeader,new Object[]{strTitle+" - 请输入尊姓大名"})); //输出表单 out.print(MessageFormat.format(strForm,new Object[]{req.getContextPath()+req.getServletPath()})); //输出页脚 out.print(strFooter); out.flush(); } protected void printHello(HttpServletRequest req,HttpServletResponse resp) throws ServletException,IOException{ //获取用户输入的数据 String name = req.getParameter("name"); if(name==null) name = "无名氏"; //在使用PrintWriter前得先设置Content Type resp.setContentType("text/html"); PrintWriter out = resp.getWriter(); //输出页眉 out.print(MessageFormat.format(strHeader,new Object[]{strTitle+" - 欢迎您"})); //输出欢迎信息 out.print(MessageFormat.format(strHello,new Object[]{name})); //输出页脚 out.print(strFooter); out.flush(); } protected void printError(String error, HttpServletRequest req,HttpServletResponse resp) throws ServletException,IOException{ //在使用PrintWriter前得先设置Content Type resp.setContentType("text/html"); PrintWriter out = resp.getWriter(); //输出页眉 out.print(MessageFormat.format(strHeader,new Object[]{strTitle+" - 出错信息"})); //输出出错信息 out.print(MessageFormat.format(strError,new Object[]{error})); //输出页脚 out.print(strFooter); out.flush(); } } 返回类别: 教程 上一教程: 使用JDBC创建数据库对象 下一教程: JAVA中使用JCOM操作OFFICE对象 您可以阅读与"SERVLET基础例程-HELLOSERVLET(LINUX版本)"相关的教程: · Dukes Bookstore(Servlet 版本)笔记 · SERVLET开发中JDBC的高级应用 · J2EE基础概念 · Java Servlet的使用 · JAVA程序员必读：基础篇（1） |
  |
| 快精灵印艺坊 版权所有 |
首页 会员中心在线印刷在线编辑付款方式索取样品设计指南连锁门店
|
||
