页面跳转之session
题意:设主页为index.jsp 通过session将index.jsp中的信息传送给结果页面result.jsp。(其实,session的生命周期是整个服务器开启过程,具体不做详细介绍)。这个 其实 挺简单的,就几行代码的事情。希望能帮助迷茫着的人。(感觉自己走出了迷茫了,嘿嘿)。
第一步:写index.jsp页面。设置好要传值的name。
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> </head> <body> <form method = "post" action = "login"> 用户名:<input type = "text" name = "name" > 密码:<input type = "password" name = "password"> <input type ="submit" value = "提交"> </form> </body> </html>
第二部:strut2.xml配置(action配置)在src目录下面创建(这样才能被服务器找到)
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="WEB-INF" extends="struts-default"> <action name="login" class="com.session.test.Login"> <result name="success">Result.jsp</result> </action> </package> </struts>
第三部(两种方法)
3.1.1编写Login类,用session方法获取name值,用于整个服务器开启周期内。
package com.session.test;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class login extends ActionSupport{
private String name;
private String password;
public String execute() throws Exception {
ActionContext context=ActionContext.getContext();
context.getSession().put("user",name);
context.getSession().put("password",password);
return SUCCESS;
}
}
3.1.2再编写result.jsp页面。用String name = (String) session.getAttribute("name");获取
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> </head> <body> <% String name = (String) session.getAttribute("name"); String password = (String) session.getAttribute("password"); %> 用户名:<%= name %> 密码:<%= password %> </body> </html>
3.2.1
不用配置strut2.xml文件,直接从页面中获取值。为了更好的体现,设置了一个中间页面,midContinue.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> </head> <body> <% String name = request.getParameter("name"); session.setAttribute("name",name); String password = request.getParameter("password"); session.setAttribute("password",password); %> <a href="Result.jsp">继续</a> </body> </html>
3.1.3用session传值
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> </head> <body> <% String name = (String) session.getAttribute("name"); String password = (String) session.getAttribute("password"); %> 用户名:<%= name %> 密码:<%= password %> </body> </html>
好了这是整个过程,两种方式,希望能帮助需要的人,也不枉我又是敲代码,又是自己敲字。
收工!有问题请回复,这是我自己写的第一篇,期望提些意见。