JSP生成九九乘法表的简单实例
一 用表达式和脚本方式实现九九乘法表
<%@ page language="java" import="java.util.*" contentType="text/html; charset=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> <base href="<%=basePath%>" rel="external nofollow" > <title>My JSP 'exercise.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" rel="external nofollow" > --> </head> <body> <%! //返回九九乘法表对应的HTML代码，通过表达式来调用，在页面上显示 String printMultiTable1() { String s = ""; for(int i=1;i<=9;i++) { for(int j=1;j<=i;j++) { s+=i+"*"+j+"="+(i*j)+" "; } s+="<br>"; //追加换行标签 } return s; } //JSP内置out对象，使用脚本方式调用，打印九九乘法表 void printMultiTable2(JspWriter out) throws Exception { for(int i=1;i<=9;i++) { for(int j=1;j<=i;j++) { out.println(i+"*"+j+"="+(i*j)+" "); } out.println("<br>"); //追加换行标签 } } %> <h1>九九乘法表</h1> <hr> <%=printMultiTable1()%> <br> <% printMultiTable2(out);%> <br> </body> </html>
二 运行效果
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