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Description: Asp.net中实现同一用户名不能同时登陆(单点登陆)
Web项目中经常遇到的问题就是同一用户名多次登陆的问题，相应的解决办法也很多，总结起来不外乎这几种解决办法：将登陆后的用户名放到数据库表中；登陆后的用户名放到Session中；登陆后的用户名放到Application中；登陆后的用户名放到Cache中。一般的这几种方法都是登陆了之后，如果没有正常退出，第二次登陆将不被允许。这样一般都会存在一个问题：如果用户没有正常退出系统，那么他接下来继续登陆的时候，因为Session没有过期等问题，会被拒绝继续登陆系统，只能等待Session过期后才能登陆。本文介绍的方法是采用类似于MSN登陆的方法，第二次登陆时会把第一次的登陆注销掉，第一次登陆将会类似于MSN弹出：您的帐号已在别处被登陆，您被强迫下线的提示信息。
功能实现起来也比较简单：
登陆用户名密码验证通过之后输入以下代码：
-Page_Separating achieve the same user name can not landing (single-point landing) Web projects often encountered The problem is the same user name repeatedly landing problems, the corresponding solutions are many, This sum up no more than several solutions : After landing the user into database tables; After making landfall, the user into Session; After making landfall, the user into Application; After making landfall, the user into Cache. General these methods are after landing, in the absence of normal withdrawal, the second landing would not be allowed. This will usually there's a problem : If users are not withdraw from the normal system, then followed him to the landing, Session expired because no such problems will continue to be refused landing system, we can only wait until the
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Size: 1719 |
Author: 尹朕懋 |
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Description: With the information in this book, you will learn how to write not only JavaScript that can stand on its own within a Web page, but also how to write scripts that interact with applications written in other development languages.
-With the information in this book, you will learn how to write not only JavaScript t hat can stand on its own within a Web page, but also how to write scripts that interact with applications written in other development lan guages.
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Size: 5116729 |
Author: 111 |
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Description: Web项目解决方案框架，一般的讲，大型系统采用UML UserCase表达客户需求。UML建模-Web projects solution framework, in general, large-scale systems using UML UserCase expression of customer needs. UML Modeling
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Size: 8724 |
Author: 司马星空 |
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Description: http://www.amazon.com/JavaScript-jQuery-David-Sawyer-McFarland/dp/1449399029 JavaScript lets you supercharge your HTML with animation, interactivity, and visual effects—but many web designers find the language hard to learn. This jargon-free guide covers JavaScript basics and shows you how to save time and effort with the jQuery library of prewritten JavaScript code. You’ll soon be building web pages that feel and act like desktop programs, without having to do much programming. The important stuff you need to know: Make your pages interactive. Create JavaScript events that react to visitor actions. Use animations and effects. Build drop-down navigation menus, pop-ups, automated slideshows, and more. Improve your user interface. Learn how the pros make websites fun and easy to use. Collect data with web forms. Create easy-to-use forms that ensure more accurate visitor responses. Add a dash of Ajax. Enable your web pages to communicate with a web server without a page reload. Practice with living examples. Get step-by-step tutorials for web projects you can build yourself.
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Size: 12477782 |
Author: vince628 |
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Description: Web项目解决方案框架，一般的讲，大型系统采用UML UserCase表达客户需求。UML建模-Web projects solution framework, in general, large-scale systems using UML UserCase expression of customer needs. UML Modeling
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Size: 8192 |
Author: 司马星空 |
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Description: JAVA控制，生成EXCEL的视频和源码，可以用于办公自动化项目中-JAVA control, the generation of Excel and video source that can be used in office automation projects
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Size: 3902464 |
Author: 小丑鱼 |
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Description: 在实际项目中，经常会遇到这样的问题，如果我对某个目录实现filter，但该目录里偏偏有一些文件我不想做filter，该怎么办？反过来，我只想对该目录的某些文件做filter而其它文件我不想做filter，我只想对所有包含login的文件做filter，或者我不想对包含login的文件做filter!以下是我的解决方法：
在：tomcat5.0+j2sdk1.4.2下调试成功
内含两个源代码，一个是权限filter一个是Encoding filter 都可以实现我先前说的功能！
另外，我发现我的e鹰新闻发布系统居然跑到了咱们网网站来，不知道是谁代劳的：）,晕，不能上传自己的原码，滋味真是怪怪的！-in practical projects, often encountering such a problem, if I achieve a certain directory filter, However, the directory is open to some documents I do not want to filter, how do? Conversely, I just want to list some of this document do filter and other documents that I do not want to filter, I just want to login contain all the documents do filter, Perhaps I do not want to include the documents do login filter! the following is my solution : : tomcat5.0 j2sdk1.4.2 successful debug source code intron 2, competence is a filter is a filter Encoding can be achieved, I said earlier that the function ! Also, I found out that my e Eagle press release as to run a system of our web site, do not know who remarked :), the corona, unable to upload their own original code, taste is really strange!
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Size: 4096 |
Author: |
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Description: struts menu源码,STRUTS MENU是开源的JAVA项目,STRUTS MENU可为你的应用创建漂亮的菜单而不用编写复杂的代码,是网站开发人员的好帮手-struts menu source, STRUTS MENU is the open-source Java projects, MENU STRUTS for your application to create beautiful menu instead of preparing the complexity of the code, Web developers is a good helper
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Size: 218112 |
Author: simens |
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Description: 办公系统的设计与实现。该系统是基于web的开发项目，在前台采用jsp控制前台页面的显示。系统的后台数据的管理采用的是SQL SERVER.-office system design and implementation. The system is web-based development projects, the future prospects of using jsp pages control the display. The background data management using the SQL SERVER.
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Size: 109568 |
Author: 林涛 |
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Description: jwp是 JSP WebProject的简写。它是一个基于Web的应用程序。它编写的方式是JSP/Java+Mysql.主要的功能是管理项目、任务、命令、用户、报告、文档。这个程序对学生管理自己的程序非常的有好处。-jwp WebProject JSP is the abbreviation. It is a Web-based application. It prepared the way JSP/Java Mysql. The main function is to manage projects, tasks, orders, users, Report Documents. The procedures for students to manage their own procedures for the benefit.
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Size: 6097920 |
Author: 杨槐玉 |
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Description: Delphi 控件源码，web版电子病历，用delphi web Application 开发工具，开发delphi Web项目运用。-Delphi control source, web version of the electronic medical records, use delphi web Application development tools, application development delphi Web projects.
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Size: 5495808 |
Author: banweibo |
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Description: JSP七个小项目代码和笔记汇总(java+web)-JSP code and the seven small projects summary notes (java+ Web)
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Size: 842752 |
Author: hu |
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Description: web项目的sso单点登录，可以直接用的-web projects sso single sign-on, can be directly used
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Size: 50176 |
Author: 邓金燕 |
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Description: Complete steps and project for developing a server project and procedure to deploy and execute the project. This article/tutorial with code will make you to develop your own web projects. For more details and more tutorials and more projects for EJB, BMP, CMP,
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Size: 1032192 |
Author: lolo |
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Description: jsf+hibernate+spring的web工程，具体项目是网上购物系统，对于初学者是很好的学习例子。
-jsf+ hibernate+ spring of web projects, specific projects are online shopping systems, for beginners is a good example of learning.
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Size: 20350976 |
Author: yrg |
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Description: 两个Java Web项目，适合新手做练习-Two Java Web projects, suitable for novice to do exercises
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Size: 2223104 |
Author: wingmyway |
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Description: 基于Eclipse开发的一个简单实例web项目-校园BBS系统，包含了该web项目的全部代码，非常适合于学习Eclipse开发web项目的范例。-Eclipse-based development of a simple example of web projects- Campus BBS systems, the web project contains all the code, Eclipse is ideally suited to study the example of the development of web projects.
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Size: 2461696 |
Author: 李杨 |
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Description: 基于Eclipse开发的Web项目，对于学习研究大型web项目的人来说这是一个很好的选择，不仅包含了全部源代码，还有基本讲解，真是web项目开发学习的首选。-Eclipse-based development of Web projects, study and research for large-scale web projects for this is a very good choice, not only contains all the source code, there are basic explanations, web project development is the first choice for study.
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Size: 932864 |
Author: 李杨 |
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Description: TRegExpr is easy to use and powerfull tool for sophisticated search and substitutioning and for template-based text checking (especially usefull for user input validation in DBMS and web projects).
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Size: 974848 |
Author: hytrex |
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Description: Designing Next Generation Web Projects With CSS3
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Size: 4713472 |
Author: Smurf |
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