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I originally translated this article only for the individual's curiosity of this technology. I didn't expect everyone to discuss the fierce discussion. As for the prospects and development evolution of WAP technology, I will continue to translate better articles for everyone. My second article about WAP article "WAP FAQ24" has been published, where maybe you will eliminate your doubts about some questions. Technical issues related to this article You can write to me: Webmaster@chinahai.com. Translator: ChinaHai) Many programmers are discussing Wireless technology, that is, often said WAP. But what WAP is? What does he represent? Why is such a weird name? We will answer these questions! First, let's take a look at its background information.
Where did all these WAP discussions come? Currently, users who use mobile phones in the world are constantly increasing. Mobile phone users around the world are more than users of desktop PCs. In a global scale, 380 million mobile phone users are now 380 million mobile phones. By 2003, users of mobile phones will reach 1 billion, which is 1/6 of the Earth population. The mobile phone has a huge user foundation, and the development of mobile phones has also provided a huge exchange communication platform, and this platform is mature every day.
Now let's imagine a new technology - it allows all mobile phone users to access the Internet. A mobile Internet, along with its growth, M-Commerce mode will be thrown behind.
Now, this mobile Internet already exists. This new technology makes the wireless device access to the Internet. This technology is WAP.
Accurately, what WAP is "something"? WAP is Wireless Application Protocol (wireless application protocol), which is said that WAP is a possible technique that enables wireless devices to become possible, which converts information on the Internet into information displayed on your mobile phone screen and other mobile devices.
How does the mobile phone access to the Internet? Think about how the Internet is usually working. Simply put, the Internet is implemented using two computers: servers and clients. The server is stored in the server, and the client is our PC or is the computer we browse to the web. WAP technology work is a bit similar. Different is that we use mobile phones to access the Internet instead of PC to access the Internet, the mobile phone is our client. This is a bit too simplified. In order to access the mobile network to the Internet, it is necessary to have a WAP gateway, and the mobile phone we use as a client must support WAP, and the website must also provide a web page in WAP format.
What is a WAP gateway? A WAP gateway is a middleware located on the Internet and mobile network. When we send a request to the Internet, it translates our "WAP" request to "Web" request. Correspondingly, when receiving the response of the Internet, the WAP gateway also converts the "Web" request from the Internet to "WAP" request.
"The website must also provide a web page for WAP format"? Today's web page is written in HTML, but it is too complicated to the mobile phone, and the speed is slow. The web page that the mobile phone can access is written in WML (Wireless Markup Language). WML significantly simplifies the number of downloads and expressions, so we say that "Website must provide WAP format" means that the source HTML language of existing websites must be converted to WML.
About WML WML is a quite concise design language, which has no excessive functionality, and is also very new (first release in 1999). WML allows programmers to specify the layout and appearance of the text, the level, links of the page. In the hierarchy, these web pages are called "decks"; separate web pages are called "cards". WML generates a static page. The static page only displays text, allowing users to jump from one page to another link page. So is interesting as a moving web page! Is it saying that the static page is the only web page that can be displayed in the mobile phone? No, the truth is not this! WML has its own JavaScript version called WML Script. WML Script allows programmers to create additional functions for WML web pages. The current WML file and WML script file must also be saved independently, so there is a large string file to associate a WAP format page.
Have you changed the existing website into a WAP format? In fact, there are many such conversion software in the market. Some conversion software declares that they can convert the entire website into WML, just a time to run the conversion, once the conversion, any change or new web pages will directly behave directly as the WML format. But some people are suspicious of these conversion procedures and think that they will be better directly to create a WAP page. On the other hand, there are more than 1 billion web pages on the Internet. If you use artificial conversion formats, it will be unrealistic. So a lot of things are often contradictory.
Where can I learn about WAP, WML and other more content? Some large mobile phone manufacturers, such as Ai Lixin (http://www.ericsson.com/), Nokia (http://www.nokia.com/), Motorola (http://www.motorola.com/) Have a wonderful information about WAP.
