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沈泽刚版 Java Web编程技术教材源代码.doc
Java Web编程技术（第2版）
沈泽刚 编著 清华大学出版社 2014.4
Java Web 编程技术（第 2 版）
沈泽刚 编著
清华大学出版社 2014.4
程序1.1
register.html
用户注册
程序1.2
index.html
派派电子商城
程序1.3
body {
}
#header {
}
#topmenu {
}
#middle {
}
#leftmenu {
}
#content {
}
#footer {
font-family:Verdana; font-size:14px; margin:10;}
#container {
margin:0 auto; width:100%;
height:50px; background:#9c6; margin-bottom:5px;
height:30px; background:#c0c0c0; margin-bottom:5px;
margin-bottom:5px;
float:left; width:180px; background:#cf9;
float:left; background:#ffa;
height:60px; background:#9c6;
clear:both;
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}
程序1.4
inputCheck.html
用户注册
程序1.5 HelloServlet.java
package com.demo;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
@WebServlet(name = "helloServlet", urlPatterns = { "/helloServlet.do" })
public class HelloServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
out.println("");
out.println("Hello Servlet ");
out.println("简单的JSP页面
登录页面
程序2.2 LoginServlet.java
package com.demo;
import java.io.*;
Hello,World!
"); out.println("现在的时间是:"+new java.util.Date()); out.println(""); out.println(""); } } 程序1.6 hello.jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>Hello,World!
现在的时间是：<%=new java.util.Date() %> 程序2.1 login.jsp <%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.WebServlet;
@WebServlet(name="LoginServlet",urlPatterns={"/login.do"})
public class LoginServlet extends HttpServlet {
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
String username = request.getParameter("username");
String password = request.getParameter("password");
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
out.println("");
if("admin".equals(username)&& "admin".equals(password)){
out.println("登录成功！欢迎您， "+username);
}else{
out.println("对不起！您的用户名或密码不正确．");
}
out.println("");
}
}
程序2.3 ClientInfoServlet.java
package com.demo;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.WebServlet;
@WebServlet("/ClientInfoServlet")
public class ClientInfoServlet extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
out.println("");
out.println("获取客户端信息 ");
out.println("");
out.println("");
out.println("
");
out.println("");
}
客户端信息：
"); out.println("| 客户主机名 | "); out.println("" + request.getRemoteHost() + " |
| 客户 IP 地址 | "); out.println("" + request.getRemoteAddr() + " |
| 端口 | "); out.println("" + request.getRemotePort() + " |
| 请求方法 | "); out.println("" + request.getMethod() + " |
| 请求协议 | "); out.println("" + request.getProtocol() + " |
| 请求 URI | "); out.println("" + request.getRequestURI() + " |
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
程序2.4 ShowHeadersServlet.java
package com.demo;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.Enumeration;
import javax.servlet.annotation.WebServlet;
@WebServlet("/ShowHeaders")
public class ShowHeadersServlet extends HttpServlet{
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException{
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
out.println("");
out.println("请求头信息 ");
out.println("服务器收到的请求头信息
");
out.println(request.getMethod()+" "
+request.getRequestURI()+" "
+request.getQueryString()+" "
+request.getProtocol()+"
");
Enumeration
");
}
out.println("");
}
}
程序2.5 LoginServlet.java
package com.demo;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.WebServlet;
@WebServlet(name="LoginServlet",urlPatterns={"/login.do"})
public class LoginServlet extends HttpServlet {
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
String username = request.getParameter("username");
String password = request.getParameter("password");
// 用户名和口令均为 admin，认为登录成功
if(username.equals("admin")&&password.equals("admin")){
request.setAttribute("username", username);
RequestDispatcher rd =
rd.forward(request, response);
RequestDispatcher rd =
}else{
request.getRequestDispatcher("/welcome.jsp");
request.getRequestDispatcher("/login.jsp");
rd.forward(request, response);
}
程序2.6 welcome.jsp
}
}
简单测试
Your are welcome!
${username} 程序2.7 questions.jsp <%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>请回答下面的问题：
程序2.8 SimpleTestServlet.java package com.demo; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;@WebServlet(name="SimpleTestServlet",urlPatterns={"/simpletest.do"})
public class SimpleTestServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String quest1 = request.getParameter("quest1");
String quest2 = request.getParameter("quest2");
String[] quest3 = request.getParameterValues("quest3");
String quest4 = request.getParameter("quest4").trim();
int score = 0;
if(quest1!=null && quest1.equals("1")){
// 答对一道题加 25 分
score = score+25;
}
if(quest2!=null&& quest2.equals("3")){
score = score+25;
}
if(quest3!=null&&quest3.length==2&&quest3[0].equals("1")&&
quest3[1].equals("3")){
score = score+25;
}
if(quest4!=null&& (quest4.equals("HttpServlet")||
quest4.equals("javax.servlet.http.HttpServlet"))){
score = score+25;
}
out.println("");
out.println("测试结果 ");
out.println("");
out.println("你的成绩是："+score+"分");
out.println("");
}
}
程序2.9
fileUpload.jsp
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
上传文件
${message}