JSP大学实用教程（第2版）代码一
2016-04-13 13:22
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由于书本上的代码直接运行会有些小问题，所以贴一些改过的代码。
十九页【例2-9】
Input.jsp
<%@pagelanguage="java"import="java.util.*"pageEncoding="gb2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPEHTMLPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<basehref="<%=basePath%>">
<title>My JSP '1.jsp' starting page</title>
<metahttp-equiv="pragma"content="no-cache">
<metahttp-equiv="cache-control"content="no-cache">
<metahttp-equiv="expires"content="0">
<metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">
<metahttp-equiv="description"content="This
is my page">
<!--
<link rel="stylesheet" type="text/css"href="styles.css">
-->
</head>
<bodybgcolor=cyan>
<fontsize=3>
<formaction="2.jsp"method="post"name="form"/>
<p>请输入下列信息：<br>
输入您的姓名:
<inputtype="text"name="name"value="张三"></BR>
<br>
选择性别:
<inputtype="radio"name="R"value="男"checked="default">男
<inputtype="radio"name="R"value="女">女
<br>
选择您喜欢的歌手:
<inputtype="checkbox"name="superstar"value="张歌手">张歌手
<inputtype="checkbox"name="superstar"value="李歌手">李歌手
<inputtype="checkbox"name="superstar"value="刘歌手">刘歌手
<inputtype="checkbox"name="superstar"value="王歌手">王歌手
<br>
<inputtype="submit"value="提交"name="submit">
</form>
</font>
</html>
receive.jsp
<%@pagelanguage="java"import="java.util.*"pageEncoding="gb2312"%>
<%
String path = request.getContextPath();
request.setCharacterEncoding("gb2312");
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPEHTMLPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<basehref="<%=basePath%>">
<title>My JSP '2.jsp' starting page</title>
<metahttp-equiv="pragma"content="no-cache">
<metahttp-equiv="cache-control"content="no-cache">
<metahttp-equiv="expires"content="0">
<metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">
<metahttp-equiv="description"content="This
is my page">
<!--
<link rel="stylesheet" type="text/css"href="styles.css">
-->
</head>
<body bgcolor=cyan>
<font size=3>
<% String yourName=request.getParameter("name"); // 获取text提交的值
String yourSex=request.getParameter("R"); //获取radio提交的值
String secretMess=request.getParameter("secret");
//获取hidden提交的值
String personName[]=request.getParameterValues("superstar"); //获取checkbox提交的值
out.println("<P> 您的姓名:"+yourName+"</P>");
out.println("<P> 您的性别:"+yourSex+"</P>");
out.println("<P> 您喜欢的歌手:");
if(personName==null){
out.print("一个都不喜欢");
}else {
for(int k=0;k<personName.length;k++){
out.println(""+personName[k]);
}
}
out.println("<P> hidden提交的值:"+secretMess);
%>
</font>
</body>
</html>
二十一页【例2-10】
example2_10.jsp
<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>
<%
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>
<base href="<%=basePath%>">
<title>My JSP 'example2-10.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This
is my page">
<!--
<link rel="stylesheet" type="text/css"
href="styles.css">
-->
</head>
<body bgcolor=yellow>
<table align="Center"border=1>
<tr width=400>
<td align="Center">welcome</td>
<td align="Right">to</td>
<td align="LEFT">Beijing</td>
</tr>
<tr>
<th valign="Top">We</th>
<td valign="Bottom">Love</td>
<td valign="Bottom"Align="Center">JSP</td>
</tr>
<tr>
<td valign="Top"> 你好</td>
<td valign="Bottom">Hello</td>
<td valign="Bottom"Aligin="Center">how
are you</td>
</tr>
</table>
</body>
</html>
三十一页【例3-4】
Example3-4.jsp
<%@pagecontentType="text/html;charset=GB2312"%>
<HTML><BODY
bgcolor=yellow>
<P>加载一个jsp文件,该文件负责计算连续整数之和：
<jsp:includepage="computer.jsp">
<jsp:paramname="item"value="100"/>
</jsp:include>
</BODY></HTML>
Computer.jsp
<%@pagecontentType="text/html;charset=GB2312"%><HTML><BODY>
<% String str=request.getParameter("item");
//获取值param标记中name属性的值
int n=Integer.parseInt(str);
int sum=0;
for(int i=1;i<=n;i++){
sum=sum+i;
}
out.println("<BR>从1到"+n+"的连续和是:</BR>"+sum);
%>
</BODY></HTML>
三十二页【例3-5】
Example3-5.jsp
<%@pagecontentType="text/html;charset=GB2312"%>
<HTML><BODY>
<%
out.println("根据不同的值转向不同的页面:<BR>");
int n=(int)(Math.random()*100)+1;
if(n>50){
%>
<jsp:forwardpage="num1.jsp">
<jsp:paramname="item"value="<%= n
%>"/>
</jsp:forward><%
} else {
%>
<jsp:forwardpage="num2.jsp">
<jsp:paramname="item"value="<%= n
%>"/>
</jsp:forward><%
}
out.println("看不见这句话");
%>
</BODY></HTML>
Num1.jsp
<%@pagecontentType="text/html;charset=GB2312"%>
<HTML><BODY
bgcolor=cyan>
<%
String str=request.getParameter("item");
//获取值param标记中name属性的值
int n=Integer.parseInt(str);
out.println("<BR>不大于"+n+"的素数:</BR>");
int i=0,j=0;
for(i=1;i<=n;i++){
for(j=2;j<i;j++){
if(i%j==0)
break;
}
if(j==i)
out.println(","+i);
}
%>
</BODY></HTML>
Num2.jsp
<%@pagecontentType="text/html;charset=GB2312"%>
<HTML><BODYbgcolor=cyan>
<%
String str=request.getParameter("item");
//获取值param标记中name属性的值
int n=Integer.parseInt(str);
out.println("<BR>不大于"+n+"奇数:</BR>");
for(int i=1;i<=n;i++) {
if(i%2!=0)
out.println(","+i);
}
%>
</BODY></HTML>
二十三页第五题
a.jsp
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%
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>
<base href="<%=basePath%>">
<title>My JSP 'a.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<br>
<form action="b.jsp" method="get">
帐号：<input type="text" name="name" value="name"><br>
密码：<input type="text" name="password" value="password"><br>
<input type="submit" value="login">
</form>
</body>
</html>
b.jsp
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%
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>
<base href="<%=basePath%>">
<title>My JSP 'b.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<font>
<br>
<%
String Name=request.getParameter("name");
String Password=request.getParameter("password");
if(Name==null){
out.print("未输入字符串");
}else{
%>
<%="你输入的字符串为："+Name+"<br>字符串长度为："+Name.length()
%><br>
<%="你输入的字符串为："+Password+"<br>字符串长度为："+Password.length()
%>
<%}
%>
</font>
</body>
</html>
二十三页第六题
InputNumber
<%@page contentType="text/html;charset=gb312" %>
<html>
<body>
<form action="getNumber.jsp" method="post" name="form">
<p>请输入一个数字：<br/>
<input type="text" name="number"><br>
<input type="submit" name="submit" value="提交">
</form>
</body>
</html>
getNumber
<%@page contentType="text/html; charset=gb2312"
%>
<html>
<body>
<br>
<%
int number=Integer.parseInt(request.getParameter("number"));
out.println(number+"的平方为："+number*number+"<br>");
out.println(number+"的立方为："+number*number*number+"<br>");
%>
</body>
</html>
十九页【例2-9】
Input.jsp
<%@pagelanguage="java"import="java.util.*"pageEncoding="gb2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPEHTMLPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<basehref="<%=basePath%>">
<title>My JSP '1.jsp' starting page</title>
<metahttp-equiv="pragma"content="no-cache">
<metahttp-equiv="cache-control"content="no-cache">
<metahttp-equiv="expires"content="0">
<metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">
<metahttp-equiv="description"content="This
is my page">
<!--
<link rel="stylesheet" type="text/css"href="styles.css">
-->
</head>
<bodybgcolor=cyan>
<fontsize=3>
<formaction="2.jsp"method="post"name="form"/>
<p>请输入下列信息：<br>
输入您的姓名:
<inputtype="text"name="name"value="张三"></BR>
<br>
选择性别:
<inputtype="radio"name="R"value="男"checked="default">男
<inputtype="radio"name="R"value="女">女
<br>
选择您喜欢的歌手:
<inputtype="checkbox"name="superstar"value="张歌手">张歌手
<inputtype="checkbox"name="superstar"value="李歌手">李歌手
<inputtype="checkbox"name="superstar"value="刘歌手">刘歌手
<inputtype="checkbox"name="superstar"value="王歌手">王歌手
<br>
<inputtype="submit"value="提交"name="submit">
</form>
</font>
</html>
receive.jsp
<%@pagelanguage="java"import="java.util.*"pageEncoding="gb2312"%>
<%
String path = request.getContextPath();
request.setCharacterEncoding("gb2312");
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPEHTMLPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<basehref="<%=basePath%>">
<title>My JSP '2.jsp' starting page</title>
<metahttp-equiv="pragma"content="no-cache">
<metahttp-equiv="cache-control"content="no-cache">
<metahttp-equiv="expires"content="0">
<metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">
<metahttp-equiv="description"content="This
is my page">
<!--
<link rel="stylesheet" type="text/css"href="styles.css">
-->
</head>
<body bgcolor=cyan>
<font size=3>
<% String yourName=request.getParameter("name"); // 获取text提交的值
String yourSex=request.getParameter("R"); //获取radio提交的值
String secretMess=request.getParameter("secret");
//获取hidden提交的值
String personName[]=request.getParameterValues("superstar"); //获取checkbox提交的值
out.println("<P> 您的姓名:"+yourName+"</P>");
out.println("<P> 您的性别:"+yourSex+"</P>");
out.println("<P> 您喜欢的歌手:");
if(personName==null){
out.print("一个都不喜欢");
}else {
for(int k=0;k<personName.length;k++){
out.println(""+personName[k]);
}
}
out.println("<P> hidden提交的值:"+secretMess);
%>
</font>
</body>
</html>
二十一页【例2-10】
example2_10.jsp
<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>
<%
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>
<base href="<%=basePath%>">
<title>My JSP 'example2-10.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This
is my page">
<!--
<link rel="stylesheet" type="text/css"
href="styles.css">
-->
</head>
<body bgcolor=yellow>
<table align="Center"border=1>
<tr width=400>
<td align="Center">welcome</td>
<td align="Right">to</td>
<td align="LEFT">Beijing</td>
</tr>
<tr>
<th valign="Top">We</th>
<td valign="Bottom">Love</td>
<td valign="Bottom"Align="Center">JSP</td>
</tr>
<tr>
<td valign="Top"> 你好</td>
<td valign="Bottom">Hello</td>
<td valign="Bottom"Aligin="Center">how
are you</td>
</tr>
</table>
</body>
</html>
三十一页【例3-4】
Example3-4.jsp
<%@pagecontentType="text/html;charset=GB2312"%>
<HTML><BODY
bgcolor=yellow>
<P>加载一个jsp文件,该文件负责计算连续整数之和：
<jsp:includepage="computer.jsp">
<jsp:paramname="item"value="100"/>
</jsp:include>
</BODY></HTML>
Computer.jsp
<%@pagecontentType="text/html;charset=GB2312"%><HTML><BODY>
<% String str=request.getParameter("item");
//获取值param标记中name属性的值
int n=Integer.parseInt(str);
int sum=0;
for(int i=1;i<=n;i++){
sum=sum+i;
}
out.println("<BR>从1到"+n+"的连续和是:</BR>"+sum);
%>
</BODY></HTML>
三十二页【例3-5】
Example3-5.jsp
<%@pagecontentType="text/html;charset=GB2312"%>
<HTML><BODY>
<%
out.println("根据不同的值转向不同的页面:<BR>");
int n=(int)(Math.random()*100)+1;
if(n>50){
%>
<jsp:forwardpage="num1.jsp">
<jsp:paramname="item"value="<%= n
%>"/>
</jsp:forward><%
} else {
%>
<jsp:forwardpage="num2.jsp">
<jsp:paramname="item"value="<%= n
%>"/>
</jsp:forward><%
}
out.println("看不见这句话");
%>
</BODY></HTML>
Num1.jsp
<%@pagecontentType="text/html;charset=GB2312"%>
<HTML><BODY
bgcolor=cyan>
<%
String str=request.getParameter("item");
//获取值param标记中name属性的值
int n=Integer.parseInt(str);
out.println("<BR>不大于"+n+"的素数:</BR>");
int i=0,j=0;
for(i=1;i<=n;i++){
for(j=2;j<i;j++){
if(i%j==0)
break;
}
if(j==i)
out.println(","+i);
}
%>
</BODY></HTML>
Num2.jsp
<%@pagecontentType="text/html;charset=GB2312"%>
<HTML><BODYbgcolor=cyan>
<%
String str=request.getParameter("item");
//获取值param标记中name属性的值
int n=Integer.parseInt(str);
out.println("<BR>不大于"+n+"奇数:</BR>");
for(int i=1;i<=n;i++) {
if(i%2!=0)
out.println(","+i);
}
%>
</BODY></HTML>
二十三页第五题
a.jsp
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%
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>
<base href="<%=basePath%>">
<title>My JSP 'a.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<br>
<form action="b.jsp" method="get">
帐号：<input type="text" name="name" value="name"><br>
密码：<input type="text" name="password" value="password"><br>
<input type="submit" value="login">
</form>
</body>
</html>
b.jsp
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%
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>
<base href="<%=basePath%>">
<title>My JSP 'b.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<font>
<br>
<%
String Name=request.getParameter("name");
String Password=request.getParameter("password");
if(Name==null){
out.print("未输入字符串");
}else{
%>
<%="你输入的字符串为："+Name+"<br>字符串长度为："+Name.length()
%><br>
<%="你输入的字符串为："+Password+"<br>字符串长度为："+Password.length()
%>
<%}
%>
</font>
</body>
</html>
二十三页第六题
InputNumber
<%@page contentType="text/html;charset=gb312" %>
<html>
<body>
<form action="getNumber.jsp" method="post" name="form">
<p>请输入一个数字：<br/>
<input type="text" name="number"><br>
<input type="submit" name="submit" value="提交">
</form>
</body>
</html>
getNumber
<%@page contentType="text/html; charset=gb2312"
%>
<html>
<body>
<br>
<%
int number=Integer.parseInt(request.getParameter("number"));
out.println(number+"的平方为："+number*number+"<br>");
out.println(number+"的立方为："+number*number*number+"<br>");
%>
</body>
</html>
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