1.教材78，79页
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>My JSP '11.jsp' starting page</title> </head> <body bgcolor = #blue> <% double price = 98.78; %> <p style="font-famliy:宋体;font-size:36;color:pink"> 商品编号 A1001，价格8795 <a href="12.jsp?id=A1001&price=8756">购买</a><br> 商品编号 A1002，价格<%= price %> <a href="12.jsp?id=A1002&price=8756">购买</a><br> </p> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>My JSP '12.jsp' starting page</title> </head> <body bgcolor = #blue> <p styl"font-famliy:宋体; font-size:36;color:blue"> <% String id = request.getParameter("id"); String price = request.getParameter("price"); %> <b> 商品编号：<%= id %> <br> <b> 商品价格：<%= price %> </p> </body> </html>
2. 97页 实验2
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body bgcolor=cyan> <p style =" font-family:宋体;font-size:18;color:black"> <% String numberOne =request.getParameter("numberOne"); String numberTwo =request.getParameter("numberTwo"); String operator =request.getParameter("operator"); if(numberOne == null||numberOne.length()==0){ response.sendRedirect("input.jsp"); return; } else if(numberTwo == null||numberTwo.length()==0){ response.sendRedirect("input.jsp"); return; } try{ double a =Double.parseDouble(numberOne); double b =Double.parseDouble(numberTwo); double r=0; if(operator.equals("+")) r=a+b; else if(operator.equals("-")) r=a-b; else if(operator.equals("*")) r=a*b; else if(operator.equals("/")) r=a/b; out.print(a+""+operator+""+b+"="+r); } catch(Exception e){ out.println("请输入数字字符"); } %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body bgcolor=#ffcff> <form action="computer.jsp" method=post name=form> <p style =" font-family:宋体;font-size:18;color:blue"> 输入运算数，选择运算符号：<br> <input type = text name ="numberOne" size=6/> <select name ="operator"> <option selected="selected" value ="+">加 <option value="-">减 <option value="*">乘 <option value="/">除 </select> <input type =text name="numberTwo"size=6/> <br><input type="submit" name="submit" value="提交"/> </form> </p> </body> </html>
3.制作一个登陆表单，输入账号和密码，如果账号密码相同，跳转到“登录成功”页面，否则跳转到“登录失败”页面。（加上JS非空验证）（选做，加验证码）
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title></title> </head> <body> <script type="text/javascript"> function validate() { if (loginForm.uname.value == "") { alert("账号不能为空!"); return; } if (loginForm.upwd.value == "") { alert("密码不能为空!"); return; } loginForm.submit(); } </script> <form name="loginForm" action="2.jsp" method="post"> 账号:<input type="text" name="uname"><br> 密码: <input type="password" name="upwd"> <br> <input type="button" value="登录" onClick="validate()"> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title></title> </head> <body> <% request.setCharacterEncoding("utf-8"); String uname = request.getParameter("uname"); String upwd = request.getParameter("upwd"); if (uname.equals(upwd)) request.getRequestDispatcher("3.jsp").forward(request, response); else request.getRequestDispatcher("4.jsp").forward(request, response); %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title></title> </head> <body bgcolor=#ffccff> <p>登录成功！</p> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title></title> </head> <body bgcolor=#EEEEFF> <p>登录失败！</p> </body> </html>
4.在上题的表单中增加一个checkbox,让用户选择“是否注册为会员"，如果注册为会员，则在显示时增加文本“欢迎您注册为会员”。
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <form action="2.jsp" method="post"> 账号：<input type="text" name="zh" /><br> 密码: <input type="password" name="upwd" ><br> 注册会员<input type="checkbox" name="checkbox" value="会员"/><br> 不注册会员<input type="checkbox" name="checkbox" value="非会员"/><br> <input type="submit" value="提交"/> <input type="reset" value="重置"/> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title></title> </head> <body> <% String zh=request.getParameter("zh"); String upwd=request.getParameter("upwd"); if(zh.equals(upwd)){ if(request.getParameterValues("checkbox")!=null){ out.print("欢迎您注册为会员！"+"<br>"); } out.print("登陆成功"); } else{ out.print("登陆失败 "); } %> </body> </html>
5.在页面1的表单内输人一个数字N，提交，能够在另一个页面打印N个“欢迎”字符串。
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title></title> </head> <body> <form action="2.jsp" method="post"> <input type="text" name="num" /> <input type="submit" value="提交" /> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title></title> </head> <body> <% String string=request.getParameter("num"); int i=string==null? -1:Integer.parseInt(string); for(int j=0;j<i;j++){ out.print("欢迎"+"<br>"); } %> </body> </html>
6.在页面1中输入账号和密码,进行登录，如果账号和密码相同，则认为成功登录到页面2,在页面2中显示一个文本框输人用户姓名,输人之后提交,在页面3中显示用户的账号和姓名。
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <form action="3.jsp" > 账号:<input name ="n" type="text"><br> 密码:<input name ="p" type="password"><br> <input type="submit" value="提交"> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <% String n =request.getParameter("n"); String p=request.getParameter("p"); if(n.equals(p)){ request.getRequestDispatcher("lose.jsp").forward(request, response); }else{ out.print("登陆失败"); } %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> 登陆成功<br> <form action="4.jsp"> <%String n=request.getParameter("n"); %> 姓名：<input type="text" name="n"/><br> <input type="hidden" name="zh" value="<%=n%>"/> <input type="submit" value="提交"/> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <% String n =request.getParameter("n"); String zh =request.getParameter("zh"); %> 账号:<%=zh%> 姓名:<%=n%> </body> </html>
