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JSP中param动作的实例详解_JSP编程_

2023-05-25 132人已围观

简介 JSP中param动作的实例详解_JSP编程_

JSP中param动作的实例详解

一 语法


常常与一起使用,作为其子标签存在。 

二 代码

1、login.jsp

<%@ 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+"/"; %>My JSP 'login.jsp' starting page

系统登录


用户名:
密码:

2、dologin.jsp

<%@ 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+"/"; %>My JSP 'dologin.jsp' starting page

3、user.jsp

<%@ 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+"/"; %>My JSP 'user.jsp' starting page

用户资料


<% request.setCharacterEncoding("utf-8"); String username = ""; String password = ""; String email = ""; if(request.getParameter("username")!=null) { username = request.getParameter("username"); } if(request.getParameter("password")!=null) { password = request.getParameter("password"); } if(request.getParameter("email")!=null) { email = request.getParameter("email"); } %> 用户名:<%=username %>
密码:<%=password %>
电子邮箱:<%=email %>

三 运行结果

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