Focus work2.0

When some people are still happy for the rapid rise of the blog, the lack of effective profit model of many web2.0 sites are suffering venture capitalists; industry once known as web2.0 wiki development of straw, although wiki model Let the wisdom, knowledge, problem-solving skills to show through, but the lack of popularity, intellectual and so on to web2.0 once again pushed to an awkward situation. At this point, Waugh off (work2.0) sprout, work2.0 use of competitive bidding procurement cost savings for SMEs, to provide employment opportunities for the many roots, but also cock for cultural and creative industries to provide a new development opportunities. September 13, 2006, held at the China Science and Technology Hall, 2006 Waugh off (work2.0) Web site operators and the development of the seminar, will be the first system of work2.0, while many work2.0 site will also be a collective appearance.

"Waugh at the word" from "work" of harmonics. It means not just an ordinary job, but a new type of networking communication. It inherits the core spirit of web2.0, but with the BLOG, WIKI web2.0 applications such as existing models have very different, both web2.0 application mode is mainly to attract large number of user groups, and work2.0 attracted is the value of user groups, brings a group of enterprises, companies dominated customer base, including the advertising value and so on. If both web2.0 application model is the most open burn bigger and does not consider short-term profits, then work2.0 can be profitable from the start. Now it seems, work2.0 pattern mainly in cash incentives, competitive bidding and reward in the form of the site appears (to www.InnoCentive.com on behalf of foreign and domestic to K68 as the representative). work2.0 the typical characteristics of the work achieved to-many network-based, users can select by work2.0 platform to do better at work, so networking rapid expansion, more opportunities for their own gain. Such a way that the full integration of human resources, on the one hand, companies can develop many problems and needs of non-core business on work2.0 to reward, on the other hand a large number of universities, research institutions, professionals and staff time to rest be used effectively.

In terms of the investment business, work2.0 further business community, business community will become a part of the industrial chain, with good market prospects. Give a simple example in terms of: customer work2.0 on the website task, a task may have 20 people bid the same time, there will be 20 items to the customer information, and customers only to pay the most satisfactory one can be, investors benefit from, customers earn big. Also, some say work2.0 the value is subversive, it is the Internet's ultimate dream. But as a core value for the new Internet service model, the auction transaction, payment, intellectual property issues and trust issues also plagued the parties are dealing. In addition, work2.0 venture investors are able to generate revenue? It can promote the development of China's cultural and creative industries? By "in September 2006 Waugh off (work2.0) site operators and Development", the industry will woek2.0 current situation and development trend of in-depth discussion, but also with relevant government departments of policy . Web2.0 websites in the future still unclear circumstances, work2.0 will lead the field of industry and media attention.






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JSF will not repeat the mistakes EJB

1.Sun the only technology on the ruined EJB

Sun introduced its own technology, has always been very self-confident, even a little conceited to the extent of self-confidence. Because of ego, Sun does not always willing to promote the technology, and planning a little ingenuity, blindly look to the attractiveness of the technology itself, as if the Expert Group pedantic they shouted, they will arise from those clouds of sensation. This is a commercial society, the emperor's daughter is still unhappy marriage, not to mention you are a liquor, but also superstition what sell themselves?

EJB's fate has dealt a blow to Sun, do not know if Sun has not woken up. Why such a great server-side EJB component architecture, will lose even Hibernate and his ilk? EJB really is too complicated? Perhaps, but not the EJB living to the point of the root causes of this predicament. Only technical theory, ignore the user needs, turned a deaf ear to the voice of the programmer, is Sun's biggest weakness, this weakness affected the release of all Sun technologies to their business plan is always tepid EJB source.

EJB's rich content, I am afraid that only Java "cattle people" who can appreciate. I have heard more than one Java "cow" and praise of the EJB. High level of abstraction, reasonable structure, stable performance and adaptability omnipotent, large-scale enterprise applications using EJB development is the "cow man" who is the only choice.

Unfortunately, EJB complex concepts, esoteric terminology and heavyweight framework, so that large numbers of patience and love "technology fast" discouraged programmers. On the contrary, publicity-seeking Hibernate, its simple configuration, easy to understand the rules and so-called "lightweight" object encapsulation, because the programmer likes to vote in the Java arena was able to quickly became popular, as doing my part of the star. Things change, so EJB shake their heads, do nothing.

Hibernate EJB's advantages and shortcomings will not go into here, if given the chance, I will also discuss the author and readers. The disrespect of the Hibernate, Hibernate's supporters do not want angry angry. As a tremendously popular Java ORM technology, Hibernate Java programmers have long been widely accepted, its founder Gavin King is now the fame and fortune, to the points of criticism, or be able to afford one? Moreover, as Gaving King joined the EJB group to standardize the development of EJB ORM, EJB and Hibernate turn hostility into friendship, now a person. As a family, and I complained about something, right when everyone is "contradictions among the people" to handle it, huh, huh!

2. Strikingly similar history, it will repeat itself

The reason that Hibernate and EJB, not to deliberately no judgments of a pass, but to explain the technology to promote Sun's planning on how lightly. Carefully JSF technology, then take a look at JSF Java Web community complaints, you will find that today's JSF and then EJB, exactly the same situation.

First of all, and, like EJB, JSF is an advanced technology. Trying to build a Java Web's UI framework, Fuzzy programming and Web programming Java Desktop line, so that a large number of programmers on the desktop programming experience, can be applied to Web programming intact, this is any other Java Web frameworks have thought of;

Second, and, like EJB, JSF also has a very complex concept. In the JSF "simplify Java Web development" goal behind, is unprecedented technical complexity of JSF. Connectionless nature of HTTP protocol, and respond to the request processing mode, determines the complexity of Web programming, especially Form processing and complicated, is inevitable. Since the JSF, the programmers do not have the face of these complex and cumbersome, then the framework must face. This is the JSF complicated reasons. Of course, the basic JSF programming quite simple, but deep into the JSF's internal, you need to know including the JSF request processing lifecycle, including many complex concepts;

Again, and, like EJB, JSF is also a lack of tools. When we use all kinds of IDE to easily write the desktop program, expected to be difficult to imagine, the lack of these tools support, back 20 years ago, the big picture of how the program will be. The importance of tools can not be overemphasized. JSF is designed for the tool, but, JSF is launched, the tools available meager, even now, visual JSF page editor is also rare;

Finally, and, like EJB, JSF is also a victim of bad business promotion plan. Not timely introduction, then introduced the relationship between untreated well and JSP, but also no large-scale business promotion, JSF only by its own technical advantages, and competitors deal with.

EJB Hibernate then have to contend with, today's JSF Struts and so there next to sneer at. History is strikingly similar, and strikingly similar history, they often continue to repeat itself. Bear to recall the fate of EJB, JSF to repeat it? Sun, please tell us the answer!







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Desktop and notebook computers to connect with online IR

A home computer with a friend, on Windows may be very familiar with it! You are not often seen in the control panel has a set of icons infrared, but I have never in-depth study? Does he want to try it hands? But the desktop computer does not have infrared adapter Yeah, but it does not matter Do not give with one. With this infrared adapter, desktop and notebook computers can have the same infrared communication. Infrared adapter in the past is hard to see, now you can find in the market, there are several brands, communication effects are plausible. Buy a bar, a cost of 200 yuan, the city can buy a computer.

In the infrared data between two computers each transfer, there are two methods: the first one is an infrared connection, the second is the infrared-line, following these two methods were described.

An infrared connection

First of all, the correct installation of desktop and notebook computers infrared driver. In the WIN98 system in infrared devices are Plug and Play devices, generally open in the BIOS, the system automatically infrared feature complete and infrared applications infrared driver installation. If you can not automatically install, check the infrared adapter using the manual or Help files WIN98 systems. After installation, double-click the taskbar icon to open the infrared communication, "Infrared Monitor" program, by changing the settings to activate it, so search for other infrared devices in the state.

If all goes well, it can be connected. Open the two computers were the "Infrared Monitor" window, the desktop window aligned infrared adapter infrared port laptops, two "infrared monitor" will quickly respond to and report found that the effective area each other, and list the name of the other communications. This indicates that the connection has been established, data transmission can be had.



WIN98 system comes with an infrared data transmission applications, called "infrared" (shown in Figure 2), you can double-click "My Computer" in the "infrared receiver" to open it. This program can use the data transfer routine, click the "Send File" option to send files to each other, click the "received files" to see the other side sent me something simple to use, very convenient.



The above approach has been to meet basic data each transfer needs, but it can only send data, or passively receive data Buneng Qu initiative to seek for Bing Huoqu what they want, so there are some limitations. Here the infrared line can do this in order to achieve real Internet.

Second, infrared line

Infrared line to use "direct cable connection" program, if your computer does not have to install a "direct cable connection", please control panel "Add / Remove Programs" to install it. Also, if the machine is not installed network protocol, go to Control Panel in the "Network" item to add clients and protocols, I suggest you add "Microsoft Internet user", "TCP / IP" and "File and printer sharing" the three, it will give the infrared line and conventional on-line to achieve the same function.

Then the following steps to execute on both machines, "Direct Cable Connection" program.

1, open the Start menu, select "Programs", "attachment", "communication" open "Direct Cable Connection" program.

2, the program will first ask you to run this computer is selected as the host or client, you must be a computer set to host another set to the client.

3, the next step, the program requires you to "Select the port you want to use" (Figure 3). Note that the Department's most critical: WIN98 systems usually infrared communication device as a serial and parallel port to deal with, of course, this is not a physical serial port or parallel port, but a virtual out, which is in the infrared driver in Device Manager after the installation is complete infrared device in the new virtual serial port or parallel port. WIN98 system for these virtual ports are assigned port number, the specific port number in "Infrared Monitor" in the "Options" column found. So, when the "Direct Cable Connection" program requires you to select the port, you have to choose distribution system for the infrared device virtual serial port or parallel port. (WIN98 general set of virtual infrared port COM4 or COM5, infrared parallel set of virtual LPT2 or LPT3)



4, Click "Next", the program prompts have set up the host or client. Click Finish, set success. Set after the completion of the online. The infrared port on both computers as opposed to the host, click "listen" and then click on the client, "Connection", if all is well, "Direct Cable Connection" program will display a successful connection. (Figure 4)



After a successful connection, the host to set a number of shared files or folders. Clients can access these shared content on the host computer, you can also upload files on the client to the host's shared folder, you can also try the network game.






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