struts2中的值栈 1.2 中在LoginAction()中有request.setAttribute("nihao", "nihao"); 怎么在前面jsp里面取出

基于BS架构的校园一卡通管理系统的设计与实现
发布时间: 23:25:25
文档类型: DOC 文档
正在打开DOC文档读取内容,请稍等......
文档内容已读取完毕!全文共 73 页
资源预览需要最新版本的Flash Player支持。您尚未安装或版本过低,建议您立即安装,以便显示文档阅读器:
内容简介:&&&> 基于BS架构的校园一卡通管理系统的设计与实现 nagementsystemDesignanddevelopmentofthesystemtoachieveacertainextenttheapplicationofinformationtechnologyand二〇一五年五月十一日星期一computernetworks,andtheultimateinquickandeasyonlinemanagementstudentsthroughthecampuscardsystemSysteminaccordancewiththeobject-orienteddesignmethodsofsoftwareengineeringinthedesignprocess,throughthesystemrequirements,systemdesign,codeandothersoftwaredevelopmentprocessintroduced,adetailedanalysisofthespecificneedsofeachmoduleinthesystem,designoverallfunctionalst... nagementsystemDesignanddevelopmentofthesystemtoachieveacertainextenttheapplicationofinformationtechnologyand二〇一五年五月十一日星期一computernetworks,andtheultimateinquickandeasyonlinemanagementstudentsthroughthecampuscardsystemSysteminaccordancewiththeobject-orienteddesignmethodsofsoftwareengineeringinthedesignprocess,throughthesystemrequirements,systemdesign,codeandothersoftwaredevelopmentprocessintroduced,adetailedanalysisofthespecificneedsofeachmoduleinthesystem,designoverallfunctionalstructureoftheofficeautomationsystem,throughthecompletionofthestructureoftheSQLServerdatabaseanalysisanddesign,andfinallyeachspecificmodulesofthesysteminterfacedesign,codedesignandsystemtesting,completedthedevelopmentoftheentiresystem,tomeetthecampusachievecardmanagementsystemfunctionsCampuscardmanagementsystemismainlydividedintofrontandback-officeadministratorstomanageuserqueriestwomaincomponentsBackstagemainlyadministratorstomanageusers,includingcardmanagement,studentmanagement,bulletinmanagement,cardmanagementwhichinclude:handlingofcard,recharge,loss,cancellation,studentmanagementmainlyimportstudentinformationmanagementincludingbulletinincreaseannouncement,checkbulletinReceptionmainlystudentsfortheiruserstoqueryinformationincludesviewpersonalinformation,changepasswords,viewbalances,viewconsumerrecords,viewannouncementsThispaperfirstdescribesthesupportofinformationtechnologytoachievesignificanceandbackgroundcampuscardmanagementsystem,campuscardadvantageandconvenienceThroughtheintroductionandapplicationofrelevanttechnologies,andthenthroughthestandarddevelopmentprocess,completethecampuscardmanagementsystemanalysis,systemdesignandimplementationfunctionsKeywords:CampusCardManagementSystem,JSP,MyEclipse,SQLServer,B/Smode二〇一五年五月十一日星期一目录综述校园一卡通研究背景校园一卡通研究意义国内校园一卡通应用现状本论文的结构系统设计的相关技术基础介绍JSP相关简介系统设计模式简介面向对象开发方法操作系统及微软简介MyEclipse开发环境系统数据库数据库的连接SQLServer数据库服务器的选择浏览器/服务端(B/S)结构B/S结构与三层架构C/S结构与B/S结构比较本章小结系统分析需求分析功能需求概述系统需求应用需求分析运行需求分析其他需求分析错误!未定义书签。可行性研究经济可行性二〇一五年五月十一日星期一技术可行性运行可行性法律可行性系统性能要求错误!未定义书签。系统时间特性要求错误!未定义书签。系统灵活性错误!未定义书签。本章小结系统设计和框架设计概述项目开发计划系统实现功能系统组成功能模块数据库功能数据库的选择数据库的完整性数据库的安全性建立数据库的任务建立数据库的方法数据库设计及建立设计概述管理员表结构设计学生表结构设计一卡通表结构设计消费记录表结构设计公告表结构设计主要用例和描述一卡通办理流程图一卡通充值流程图一卡通挂失流程图一卡通注销流程图二〇一五年五月十一日星期一一卡通学生用例错误!未定义书签。web服务器环信息的查询包括查看个人信息、修改密码、查看余额、查看消费记录、查看公告。软件性能时间性能:各种操作在网络正常的情况下应在用户心理可接受的范围内响应。稳定性能:系统在各种用户、不同数量的用户和不同的用户的操作的情况下保持稳定性。软件模块的实现登陆模块实现()原理和实现代码由于考虑到登陆不同的用户所以设置了两个不同的登陆页面进行实现。通过点击登陆按钮触动StudentLoginAction然后进入Webxml找到对应的action,在后台通过request进行前台参数的接收,然后进行判断,先是对验二〇一五年五月十一日星期一证码就行判断如果验证码正确,继续从dao层进行取数据,然后进行判断是否存在此用户,如果存在进入系统登录成功,如果不存在登录失败重回登录页面。后台页面与前台页面一样当点击登录按钮时触动AdminLoginAction然后通过各个函数进行调用,前后都是用了JavaScript进行验证,通过function函数进行判断是否为空,如果为空进行相应的提示不进行登陆。验证码主要调用了javaawt中的几个包,通过设置颜色、字体就像在画布上画图一样进行随机绘画。主要代码如下:publicvoiddoPost(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{PrintWriterout=responsegetWriter();HttpSessionsession=requestgetSession();Stringadmincode=requestgetParameter();Stringimgcode=(String)sessiongetAttribute();Stringadminname=requestgetParameter();Stringadminpassword=requestgetParameter();if(adminname==||adminpassword==||!admincodeequalsIgnoreCase(imgcode)){//先判断账号和密码是否为空,验证码是否与之相匹配,如果不匹配返回登陆页面responsesendRedirect(manage/);return;}//从dao层进行调用查找,用findAll查找出所有管理员AdminDAOdao=newAdminDAO();ArrayListal=null;try{al=daofindAll();}catch(ClassNotFoundExceptione){eprintStackTrace();}catch(SQLExceptione){eprintStackTrace();二〇一五年五月十一日星期一}intadminid=-;intsize=alsize();for(inti=;size;i++){Adminad=alget(i);//查找完后,与登陆的用户进行判断,看是否存在此用户,如果存在进入管理员页面,如果不存在返回登陆页面if(adminnameequals(adgetAdminname())adminpasswordequals(adgetAdminpassword())){adminid=adgetAdminid();session=requestgetSession();sessionsetAttribute(,adminname);sessionsetAttribute(,adminid);responsesendRedirect(manage/);return;}}responsesendR...
网站备案:桂ICP备号-1 (C)copyright@
帮帮文库版权所有struts2表单标签_百度文库
两大类热门资源免费畅读
续费一年阅读会员,立省24元!
struts2表单标签
&&主要是struts2的常用标签
阅读已结束,下载文档到电脑
想免费下载本文?
定制HR最喜欢的简历
下载文档到电脑,方便使用
还剩52页未读,继续阅读
定制HR最喜欢的简历
你可能喜欢现在开始加入公司的核心项目,但由于项目开发比较早,所以使用的技术不是很新潮,前台用的还是struts1。
虽然不是什么新技术,但仍可以从中学到好多东西的。花了一个晚上的时间终于把struts1的流程跑通了。
省略了创建过程及加入jar包的过程,直接进入正题。
首页要在web.xml中添加相应的struts配置:
&servlet-name&action&/servlet-name&
&servlet-class&
org.apache.struts.action.ActionServlet
&/servlet-class&
&init-param&
&param-name&config&/param-name&
&param-value&/WEB-INF/struts-config.xml&/param-value&
&/init-param&
&init-param&
&param-name&debug&/param-name&
&param-value&2&/param-value&
&/init-param&
&init-param&
&param-name&detail&/param-name&
&param-value&2&/param-value&
&/init-param&
&load-on-startup&2&/load-on-startup&
&/servlet&
&servlet-mapping&
&servlet-name&action&/servlet-name&
&url-pattern&*.do&/url-pattern&
&/servlet-mapping&
然后在config所对应的目录下添加struts配置文件struts-config.xml
&?xml version="1.0" encoding="UTF-8" ?&&!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd"&&struts-config&&!-- ActionForm
&form-beans&
&!-- name:名称 type:类路径 --&
&form-bean name="loginForm" type="com.login.LoginForm"&
&/form-bean&
&/form-beans&&!-- 设置全局URL,必须写在Action前面,这样任何Action都可以使用 --&
&global-forwards&
&forward name="result" path="/result.jsp" /&
&/global-forwards&&!-- 注册Action --&
&action-mappings&
&!-- name:名称 type:类路径 path:客户端(JSP)提交到服务器端时指定的路径(Form表单中的action=”/login.do" --&
&action path="/login" type="com.login.LoginAction"
name="loginForm" scope="request"&
&!-- 局部URL,只有这个action可以使用 --&
&forward name="success" path="/success.jsp"&&/forward&
&forward name="error" path="/error.jsp"&&/forward&
&/action-mappings&&/struts-config&
注:Action和Form的关系是一个Action只能对应一个Form(通过Action的name属性)
而一个Form可以被多个Action调用
LoginAction.java
package com.import javax.servlet.http.HttpServletRimport javax.servlet.http.HttpServletRimport org.apache.struts.action.Aimport org.apache.struts.action.ActionFimport org.apache.struts.action.ActionFimport org.apache.struts.action.ActionMpublic class LoginAction extends Action {
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
LoginForm lf = (LoginForm)
String username = lf.getUsername();
String password = lf.getPassword();
String errorInfo = "";
String result = UserManager.getInstance().login(username, password);
if (result.equals("success")) {
request.setAttribute("username", username);
return mapping.findForward("success");
} else if (result.equals("username")) {
errorInfo = "密码错误";
errorInfo = "用户名错误";
request.setAttribute("errorInfo", errorInfo);
return mapping.findForward("error");
LoginForm.java
package com.import javax.servlet.http.HttpServletRimport org.apache.struts.action.ActionEimport org.apache.struts.action.ActionFimport org.apache.struts.action.ActionMpublic class LoginForm extends ActionForm {
public void reset(ActionMapping mapping, HttpServletRequest request) {
System.out.println("--------reset()-------------");
super.reset(mapping, request);
public ActionErrors validate(ActionMapping mapping,
HttpServletRequest request) {
System.out.println("--------validate()-------------");
return super.validate(mapping, request);
public String getUsername() {
public void setUsername(String username) {
this.username =
public String getPassword() {
public void setPassword(String password) {
this.password =
对我个人来说最重要的是前台jsp页面没有掌握,经常在页面上花费很多时间
在编写JSP页面时要用struts标签,而我经常会忘记
引入jsp标签
&%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %&
&%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %&
&%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%&
&%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %&
&%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %&
&!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"&
&title&首页&/title&
&html:form action="/login.do"&
用户名:&html:text property="username"&&/html:text&&br/&
密码: &html:password property="password"&&/html:password&&br/&
&html:submit&submit&/html:submit&
&/html:form&
展示结果(将Action的返回值展示到JSP页面上)
&%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%&
&%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%&
&%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%&
&!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"&
&title&Error&/title&
&bean:write name="errorInfo" scope="request" /&
阅读(...) 评论()struts中action中用request.setAttribute传值但是在页面获取老是为空
但是获取到的值都是为空,如果用session的话就可以成功获取,是不是用request还要做什么配置么。郁闷
回复讨论(解决方案)
由于是第一次提问所以不知道怎么弄分。。。就弄了5分,
21:11&&&[]
;是线程不安全的,多个请求一起来的话,会造成某一个request为空。
放在方法里传来传去的话OK。
不要自己在外面定义变量。
能解决你的问题的话,帮我宣传宣传博客。
确实是这样,但是在Struts&中&一般从页面到后台都这样写&private&nbsp
17:51&&&[]
后台就是:
&&&request.setAttribute(&newfile&,&newfile);&&//newfile就是新上?的文件路?
newfile的值是C:\Program&Files
-11:14&&&[]
;address&,&&request中的值&);和application.setAttribute(&address&,&&application中的值&);报空指针错误
2.我定义了一个 private&nbsp
-18:05&&&[]
;也就是说任意类型啊
我在页面写都没问题的&但是在java文件里面写就报错&我第2个值传的是double类型的&我在Jsp页面写
一点问题都没有
request.setAttribute(arg0,&arg1)中argo是String类型,arg1是
18:51&&&[]
double&result=biz.add(num1,&num2);
request.setAttribute(&result&,&result);
《The&method&setAttribute
03:35&&&[]
JAVA代码里可以实现
把request.setAttribute()放在JAVA代码里可以实现
取不到值滴&试过&不管是不是集合&传不过去的
嗯&JSP-------&JSP&,servlet----&jsp&nbsp
15:15&&&[]
同一个request
在页面一应将request.setAttribute(&a&,&aaa&)改成HttpServlet&session&=&request.getSession();
-11:17&&&[]
小弟菜鸟,看到别人有一条代码如下:
请问他这是放了什么进去?空字符吗?
这样放进去有什么作用?
request.setAttribute(&list&,&&''&);
回复讨论(解决方案)
你就直接给看一段代码,怎么判断他是干什么
-14:10&&&[]
今天突然发现servlet中不能用request.setAttribute(&message&,&message)向JSP页面传递int参数。
我的工作环境是Myeclipse6.5,创建项目时选择的J2EE&1.4&Libraries&nbsp
-19:24&&&[]
后台打印一下date的值
把你前台取值的代码贴出来
我是从前台的js中获取的:
前台jsp也面的js:
var&date=&%=request.getAttribute(&date&)%&;
alert(date);
结果跳出的是
-14:40&&&[]
在struts的formAction中request.setAttribute,转到jsp页中可以取到值,但是在jsp中request.setAttribute,在下一页中就取不到,应该怎么做才行呢?我想传的值是一个对象。
回复讨论(解决方案)
你是想在一个页面往另一个页面传值吗?
-12:41&&&[]The Jsp file struts2 default encoding is ISO-8859-1, change the code as follows: Myelipse-&window-& Preferences-&in the search box or search jsp (in myelipsex Interprise under the files and Editors) in jsp selected, will change the Encoding
1) Body to achieve the use of JS &script type=&text/javascript&& this.location.href=&/provision/login/login&; &/script& 2) use the response.sendRedirect JSP &% response.sendRedirect(&login/login&) %& 3) The
Recently encountered a problem, I get very depressed! Jsp page is as long as the label used to &s:action&, then the page referenced by the external js file on the failure of the! Basically not have any effect it! Here is the head into an external js
Java MVC框架性能比较 jsp.struts1.struts2.springmvc3 (转帖) 个人希望本帖对大家认识一些常用的MVC框架有所帮助! 现在各种MVC框架很多,各框架的优缺点网络上也有很多的参考文章,但介绍各框架性能方面差别的文章却不多,本人在项目开发中,感觉到采用了struts2框架的项目访问速度,明显不如原来采用了struts1框架的项目快,带着这些疑惑,我对各类MVC框架的做了一个简单的性能分析比较,其结果应该说是基本符合预期的,可供大家参考. 测试环境:CPU:酷睿2
First, configure the annotation information Window - Preferences - Java - Code Style - Code Templates - Note - Type /** * * The name of the project :${project_name} * The class name :${type_name} * Class description : * Created by :${user} * Creation
A, struts2 upload a single file The first step: Make sure the WEB-INF/lib in the commons-fileupload-xxxjar, commons-io-xxxjar two jar files. These two files can be downloaded from the struts2 file found in the lib, or to http://commons.apache.org/ do
struts2 ajax verify the existence of input values Today to do the struts2 ajax validate input regarding the existence of the function, and now share with everyone, I hope everyone many opinions!!! input.jsp page code: &html& &body& &s:form
Login user information will be saved to the session in the following filters to detect if the user session variable is empty will skip the login page is mandatory index.jsp import java.io.IOE import javax.servlet.F import javax.servlet
&% = Request.getContextPath ()%& relative path to solve the problem, can return to the site's root path. &A href =&&%= request.getContextPath ()%&/ XXX.jsp && / / This is the absolute path obtained &a href=&XXX.jsp&quot
5.6 Struts2 Introduction of non-form tags In addition to the form tag outside, Struts2 also provides abundant evidence of visual control of the label, and even allow developers to customize their own control tag. More difficult because the classifica
Today've done some research using fckeditor as the project is Struts2 When uploading image in FCK old reported the error last find out the reasons that: Sturtss2 interceptor was filtered out. Solution: is to struts2 the filter url-pattern to *. actio
Recently, a question is bothering me! Just do not know how to use struts2 tags to real images. &img Src=& Picture path &/& pure static, but can not find struts2 jsp page used to display the image tags. Look forward to expert help to resolv
In the struts2, jsp page, use the &s:if test=&${aaa == null}&& &/ s: if& Will report errors: According to TLD or attribute directive in tag file, attribute value does not accept any expressions. Correct is to use: &s:if test=&quot
&filter-mapping& &filter-name& struts2 &/ filter-name& &url-pattern& *. jsp &/ url-pattern& &/ Filter-mapping& Recent struts, when the use of labels, there has been such a problem. Original use of labels, reference meth
1, Struts1 and Struts2 and contrast the difference between 1 Struts1 requires Action classes inherit an abstract base class. Strut1 a common programming problem is to use abstract classes rather than interfaces. 2 Struts 2 Action class may implement
Implementation of functions: to judge whether the user is logged, logged users disable access to any page or action, automatically jump to the login page. web.xml configuration &filter& &filter-name&SecurityServlet&/filter-name& &filt
[Size = small] from: /blog/) first http://www.fckeditor.net/download download FCKeditor_2.6rc.zip and FCKeditor-2.3.zip. Will FCKeditor_2.6rc.zip extract, open the folder after decompression, in which the fckeditor w
ps:这个是spring security 2.x适用! 如何搭建struts2+hibernate+spring+spring security ,可以看我以前写的一篇文章:/BeyondBit/blog/64465 今天我们来介绍一下spring security 验证码的问题. 使用jcaptcha实现彩色验证码,这是一个被spring security 2放弃的组件,据说本来维护acegi版本的作者不见了,所以组件就放到了sandbox中,
疯狂的周末过后,今天拖着疲惫的身体.没有工作状态,于是总结几点spring3 mvc 的核心内容吧!包括不解之处能与大家讨论讨论! 虽然struts2功能强大,使得javaweb开发更加条理有序,代码整洁美观,方便维护.但是struts2的执行效率相对较低,学习难度也相对spring mvc偏高,复杂!个人认为常规的web开发spring mvc足已!下面简单总结总结: 一.在struts2中相信大家对ModelDriven&T&(数据模型驱动)不陌生吧!那么在spring3 mvc中也提供了
Scroll js effects &div& &div& &img src =&&%= request.getContextPath ()%& / Letousky / jsp / img / loading.gif && &br/& Loading ...&/ div& &! - This type of tolerance has been part of the document wrote kaij
DWR3.0 has been out .. It seems to me to be the most useful are: Reverse ajax reverse the changes Ajax. DWR2 generally be used this way: ScriptBuffer script = new ScriptBuffer (); script.appendScript ( &alert (1)&); ServerContext sctx = ServerCo
ActionForward is doing what? He is used to package forwarding path. In struts-config.xml in &forward name=&error& path=&/login.jsp&& &/ forward& the default is an forwarding address, forwarding features: the use of the same
Directory 1. To prepare ... 2 1.1. Create Project ... 2 1.2. In the project to build packages ... 3 2. Struts part of the ... 3 2.1. Add Struts capabilities to support ... 3 2.2. To create ActionForm class. 5 2.3. Creating Action Class ... 6 2.4. Cre
register.jsp Code &% @ Page language = &java& import = &java.util .*& pageEncoding = &UTF-8&%& &% String path = request.getContextPath (); String basePath = request.getScheme () + &://& + Request.getServe
4.6. LoginAction.java file &br /& modify LoginAction.java class attributes in the public IUsersBusiness usersB and defines a setUsersBusiness (IUsersBuseiness usersBusiness) method allows us to inject IUsersBusiness example, in the Action ob
Wrote a user login authentication filter, deeply practical. Can not only prevent the user does not enter a user name and password login jsp page, but also prevents the user did not enter a user name and password to log directly into servlet address d
Just finished writing the user's access filters, basically to prevent users to directly enter the URL to access resources. Please correct me if less than! Java code: package com.viano. import java.io.IOE import javax.servlet.F i
Filter (filters) Introduction Filter the basic function is to process Servlet Servlet container to intercept calls to the Servlet to respond before and after treatment to achieve some special features. In the Servlet API defines three interface class
login.jsp to add the following test code from other packages related to the introduction of class &% String command = request.getParameter (&command&); if (&login&. equals (command)) ( String userId = request.getParameter (&use
The Struts dispatcher cannot be found. This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for t
package com.dm. import java.io.IOE import java.io.PrintW import javax.servlet.ServletE import javax.servlet.http.HttpS import javax.servlet.http.HttpServletR import javax.servlet.http.HttpServletR
In MyEclipse 8.6 environment using Spring3 Struts2 Hibernate3 SSH to create a simple project Mysql test table CREATE TABLE `person` ( `id` int(11) NOT NULL AUTO_INCREMENT, `firstName` varchar(45) DEFAULT NULL, `lastName` varchar(45) DEFAULT NULL, PRI
filter filters are mainly used in the front to the back-pass data filtering operations. Not explained very simple level, a few have been written directly to the code: First, the browser does not cache the page filters Copy code to Java code import ja
1. First to write a permission filter filter class that implements the interface Filter /* First write a permission filter filter*/ import javax.servlet.F import javax.servlet.FilterC import javax.servlet.ServletE import javax.se
How to use java calls the scanner? This paper attempts to analyze how many angles java program called scanner. 1. To find out what type of program to invoke the scanner program is if the development of swing-based java application or program that can
这个是本菜鸟自己遇到在难题,用了半天才解决,所以来分享一下. 目的是实现SpringMVC 和 ExtJs 能够通过Ajax 结合起来,也就是在Ext页面实现动态刷新. 主要是用来解决Ext的Ajax回调函数无响应的情况 本次举的例子是动态验证用户名是否重复 1.额外需要的Jar包 mysoa-0.9.4.jar slf4j-api-1.6.3.jar 2.ExtJS页面 JSP 编写 &%@ page language = &java& contentType = &
index.jsp &%@ page language=&java& import=&java.util.*& pageEncoding=&utf-8&%& &% String path = request.getContextPath(); String basePath = request.getScheme()+&://&+request.getServerName()+&:&+re
一.一次性验证码的作用 防止暴力破解. 二.实现 1.创建jsp页面,在页面中添加一个img标签,指向一个生成图片的servlet,设置img宽度和高度 2.创建生成图形验证码的Servlet 该Servlet根据生成的随机码产生一个图形流并返回,可以将该图形做一些混淆操作,同时将该随机码保存到当前用户session中. 3.验证码比对 将用户提交上来的验证码和保存到当前用户session中的随机码进行比对. 4.刷新验证码. 使用javascript刷新验证码. 三.示例代码 login.js
//spring配置: &http use-expressions=&true& auto-config=&true&& &access-denied-handler ref=&accessDeniedHandler&/& &/http& //用accessDeniedHandler来处理你的逻辑 //比如区分ajax请求和页面跳转 &beans:bean id=&accessDeniedHan
1.Response和Request实际对象是什么? 虽然我们都是面向Servlet API的接口规范编程,但是还是应该了解一下web服务器是如何实现它的(以tomcat为例). Servlet规范是这样定义相关的接口: 1.ServletResponse:Defines an object to assist a servlet in sending a response to the client. The servlet container creates a ServletRespons
会话(Session)跟踪是Web程序中常用的技术,用来跟踪用户的整个会话.常用的会话跟踪技术是Cookie与Session.Cookie通过在客户端记录信息确定用户身份,Session通过在服务器端记录信息确定用户身份. 本章将系统地讲述Cookie与Session机制,并比较说明什么时候不能用Cookie,什么时候不能用Session. 1.1 Cookie机制 在程序中,会话跟踪是很重要的事情.理论上,一个用户的所有请求操作都应该属于同一个会话,而另一个用户的所有请求操作则应该属于另一个会
JavaWeb结合七牛云存储搭建个人相册 一.引言 1. 课程概述 相信很多人都知道网站一般会有很多图片,对于小型网站来说,图片放在网站服务器上不算什么,但当图片数量很大时,会造成服务器很臃肿,相应地对带宽要求也会提高,这就造成了成本的增加.其实现在已经流行云存储,我们可以把图片.大文件等放到第三方提供的云存储服务上,这会减少一部分成本.这门课程就介绍了JavaWeb结合七牛云存储来搭建个人相册服务. 2. 预备知识 掌握Servlet+JSP,能了解Bootstrap更好. 二.Just Do
会话(Session)跟踪是Web程序中常用的技术,用来跟踪用户的整个会话.常用的会话跟踪技术是Cookie与Session.Cookie通过在客户端记录信息确定用户身份,Session通过在服务器端记录信息确定用户身份. 本章将系统地讲述Cookie与Session机制,并比较说明什么时候不能用Cookie,什么时候不能用Session. Cookie机制 Cookie技术是客户端的解决方案,Cookie就是由服务器发给客户端的特殊信息,而这些信息以文本文件的方式存放在客户端,然后客户端每次向
JSP: &% @ Page language = &java& import = &java.util .*& pageEncoding = &ISO-8859-1&%& &% String path = request.getContextPath (); String basePath = request.getScheme ()+&://&+ request.getServerName ()+&quo
Spent an afternoon in the system integration dhtmlxScheduler schedule. System uses JSP + JQuery and dhtmlxScheduler, the background using a Struts2. QQ: Results shown in Figure: 1, in the /docs/products/dhtmlxScheduler/index.shtm
web.xml file &? xml version = &1.0& encoding = &GB2312&?& &web-app xmlns = &/xml/ns/j2ee& xmlns: xsi = &http://www.w3.org/2001/XMLSchema-instance& version = &2.4& xsi: schemaLoc
See background section: jsp + jquery + struts2 + hibernate + spring + dhtmlxScheduler agenda of integration (2) 1, in /docs/products/dhtmlxScheduler/index.shtml download dhtmlxScheduler. 2, in the culture: the sources into the co
Front part of the See also: jsp + jquery + struts2 + hibernate + spring + dhtmlxScheduler agenda of integration (I) Here is the background of the action of the processing, use the struts2, struts, servlet, and other principles are similar, 1, just ju
1 struts2 configuration page 2 3 4 jdbc database connection 5 tomcat The following solutions regardless of the order, we compared according to their own configuration. 1 struts2 configuration struts.properties in the configuration file struts2 with s
1.s: action tag Overview s: action tag function: the JSP page to access the data in the class action, to perform certain operations, and return th its properties and significance are as follows: Property name If necessary Default
Copyright (C) , All Rights Reserved.
版权所有 闽ICP备号
processed in 0.054 (s). 9 q(s)

我要回帖

更多关于 struts2中的action 的文章

 

随机推荐