zoukankan      html  css  js  c++  java
  • 一个简陋的留言板

    【效果图】


    就两个jsp文件搞定
    example2_1.jsp

    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8" import="java.util.*"%>
    <!DOCTYPE html>
    <html>
    	<head>
    		<meta charset="UTF-8">
    		<title>留言板</title>
    		<style>
    			.userinput{
    				100px;
    			}
    		</style>
    	</head>
    	<body>
    		<form action="sub.jsp" method="post">
    			Name: &nbsp; <input class="userinput" type="text" name="user" /><br>
    			Content:<br/>
    			<textarea value="" name="newwords" cols="20" rows="3">
    			</textarea>
    			<br>
    			<input type="submit" value="submit"/>
    		</form>
    		<br>
    		<a href="sub.jsp">view comments</a>
    	</body>
    </html>
    

    sub.jsp

    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8" import="java.util.*"%>
    <!DOCTYPE html>
    <html>
    	<head>
    		<meta charset="UTF-8">
    		<title>example3_1</title>
    	</head>
    	<body>
    		<%
    			request.setCharacterEncoding("utf-8");
    			if (application.getAttribute("mainboard")==null){
    				application.setAttribute("mainboard", "");
    			}
    			String cur = (String)application.getAttribute("mainboard");
    			if (!(request.getParameter("user")==null) &&
    					!(request.getParameter("newwords")==null)){
    				String user = request.getParameter("user");
    				String words = request.getParameter("newwords");
    
    				if (cur.length()!=0){
    					cur = cur + "<br>";
    				}
    				cur = cur + user+":";
    				cur = cur + words;
    				application.setAttribute("mainboard", cur);
    			}
    			out.print(cur);
    		%> 
    		<br><br>
    		<a href="example2_1.jsp">返回</a>
    	</body>
    </html>
    
  • 相关阅读:
    git 的常用命令(未完待补充)
    Mysql占用内存过高参数优化
    mysql安全基线设置
    redis安全基线设置
    centos7安全基线设置
    检查shell脚本
    redis安装和配置
    TIME_WAIT状态全是3306解决办法
    PHP message: PHP Fatal error: Allowed memory size of 134217728 bytes exhausted 错误
    tcp的三次握手和四次挥手(二)
  • 原文地址:https://www.cnblogs.com/AWCXV/p/12163341.html
Copyright © 2011-2022 走看看