第七周作业

1.教材P78-79 例4-9

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
   
   <%  double price=98.78;
    %>
    <p style="font-family: 宋体;font-size: 36; color:blue">
    商品编号A10001,价格 8765
    <a href="ex02.jsp?id=A10001&price=8765">购买</a><br>
    商品编号A10002,价格<%=price %>
     <a href="ex02.jsp?id=A10002&price=<%=price %>">购买</a><br>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
   
    <p style="font-family: 宋体;font-size: 36"; color:blue>
    <% String id=request.getParameter("id");
    String price=request.getParameter("price");
    out.print("商品编号:"+id+"</br>"+"商品价格"+price);
     %>
  </body>
</html>

 

 

 

 

2.教材P97 实验2

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
  <form action="ex02.jsp">
    <p style="font-family: 宋体;font-size: 18; color:blue">
    输入运算数,选择运算符号:
    <input type="text" name="one" size=6/>
    <select name="op">
        <option value="+">加</option>
        <option value="-">减</option>
        <option value="*">乘</option>
        <option value="/">除</option>
    </select>
    <input type="text" name="two" size=6/>
    <br><input type="submit" value="提交"/>
  </form>
  
     
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
   
    <p style="font-family: 宋体;font-size: 18; color:black">
    <%
    String one=request.getParameter("one");
    String two=request.getParameter("two");
    String op=request.getParameter("op");
     
    if(one==null||one.length()==0){
        response.sendRedirect("ex01.jsp");
        return;
    }
    else if(two==null||two.length()==0){
        response.sendRedirect("ex01.jsp");
        return;
    }
     
        double a=Double.parseDouble(one);
        double b=Double.parseDouble(two);
        double r=0;
        try{
        if(op.equals("+")){
            r=a+b;
        }
        else if(op.equals("-")){
            r=a-b;
        }else if(op.equals("*")){
            r=a*b;
        }else if(op.equals("/")){
            r=a/b;
         
        }
        out.print(a+op+b+"="+r);
        }
        catch(Exception e){
         out.print("输入数字字符");
        }
     
     
     %>
  </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"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
     <script type="text/javascript">
        function login(){
            if(logindo.admin.value==""){
                alert("请输入账号");
                return;
            }
            else if(logindo.pass.value==""){
                alert("请输入密码");
                return;
            }
            logindo.submit();
        }
    </script>
  <form action="ex02.jsp" name ="logindo">
    <p style="font-family: 宋体;font-size: 18; color:blue">
    账号:
    <input type="text" name="admin" size=6/>
    密码:
    <input type="password" name="pass" size=6/>
     
   
    <br><input type="button" value="登录" onclick="login()"/>
  </form>
  
  
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
  <%
    String admin=request.getParameter("admin");
    String pass=request.getParameter("pass");
    if(admin.equals(pass)){
        request.getRequestDispatcher("ok.jsp").forward(request, response);
    }
    else{
        response.sendRedirect("no.jsp");
    }
   %>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
 登录失败!!!!!!!
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
 登录成功!!!!!!!
  </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"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
     <script type="text/javascript">
        function login(){
            if(logindo.admin.value==""){
                alert("请输入账号");
                return;
            }
            else if(logindo.pass.value==""){
                alert("请输入密码");
                return;
            }
            logindo.submit();
        }
    </script>
  <form action="ex02.jsp" name ="logindo">
    <p style="font-family: 宋体;font-size: 18; color:blue">
    账号:
    <input type="text" name="admin" size=6/>
    密码:
    <input type="password" name="pass" size=6/>
    是否注册会员:
    <input type="checkbox" name="yes" value="注册"/>注册
    <input type="checkbox" name="yes" value="不注册"/>不注册
    <br><input type="button" value="登录" onclick="login()"/>
  </form>
  
  
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
  <%
    String admin=request.getParameter("admin");
    String pass=request.getParameter("pass");
     
    if(admin.equals(pass)){
        request.getRequestDispatcher("ok.jsp").forward(request, response);
         
    }
    else{
        response.sendRedirect("no.jsp");
    }
    
   %>
   
   
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
 <h1>登录失败!!!!!!!</h1>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
 <h1>登录成功!!!!!!!</h1>
 <%
    String []yes=request.getParameterValues("yes");
    for(int i=0;i<yes.length;i++){
            if(yes[i].equals("注册")){
            out.print("注册为会员");
            }
             
        } %>
   
  </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"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
     
  <form action="ex02.jsp" name ="logindo">
    <p style="font-family: 宋体;font-size: 18; color:blue">
    请输入数字
    <input type="text" name="num" size=6/>
    <br><input type="submit" value="提交"/>
  </form>
  
  
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
      <%
        String num=request.getParameter("num");
        int n=Integer.parseInt(num);
         
       for(int i=0;i<n;i++){
            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"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
     <script type="text/javascript">
        function login(){
            if(logindo.admin.value==""){
                alert("请输入账号");
                return;
            }
            else if(logindo.pass.value==""){
                alert("请输入密码");
                return;
            }
            logindo.submit();
        }
    </script>
  <form action="ex02.jsp" name ="logindo">
    <p style="font-family: 宋体;font-size: 18; color:blue">
    账号:
    <input type="text" name="admin" size=6/>
    密码:
    <input type="password" name="pass" size=6/>
 
    <br><input type="button" value="登录" onclick="login()"/>
  </form>
  
  
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
  <%
    String admin=request.getParameter("admin");
    String pass=request.getParameter("pass");
     
    if(admin.equals(pass)){
        request.getRequestDispatcher("ok.jsp").forward(request, response);
         
    }
    else{
        response.sendRedirect("no.jsp");
    }
    
   %>
   
   
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
  <%
     String admin=request.getParameter("admin");
    String uname=request.getParameter("uname");
    out.print("账号:"+admin+"</br>"+"用户名称"+uname);
     
    
   %>
   
   
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
 登录失败!!!!!!!
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body>
 登录成功!!!!!!!
 <%  String admin=request.getParameter("admin"); %>
        <form action="ex03.jsp">
            用户名:<input type="text" name="uname" />
        <input type="submit" value="提交"/>
        <input name="admin" type="hidden" value="<%= admin %>">
        </form>
   
  </body>
</html>

 

 

 

 

posted @ 2022-04-17 13:16  潘雨  阅读(6)  评论(0编辑  收藏  举报