Shulou(Shulou.com)06/01 Report--

Today, I will talk to you about how to carry out Web development analysis of Java and Python. Many people may not know much about it. In order to make you understand better, the editor has summarized the following contents for you. I hope you can get something according to this article.

In Java, there is a server-side software component technology called Servlet, which is actually positioned as a lightweight gadget, such as applet in Java. Servlet can dynamically expand the function of the web server, to put it simply, it provides an extended interface on the Http server, which is an interface label.

According to the JavaEE specification, any servlet needs to directly or indirectly implement the Servlet interface, that is, javax.servlet.Servlet. There are only five methods defined in this interface, but because servlet is protocol-independent, it is very difficult to implement it directly, so the sun used to be a javax.servlet.GenericServlet class in addition to the class that implements the Servlet interface. Obviously, this general class can only be an abstract class, and the core method in it is service (), so we can see that it is still protocol-independent and still protocol-independent, so there is a new implementation class HttpServlet. When we write web applications, we only need to focus on how to rewrite get and post methods. Originally, it is more inclined to the post method in terms of security and extensibility, but at present, the get method is more popular.

When you get to the Python stack, things change a little bit. To put it simply, if we don't use any web framework, we can completely use socket to implement it, which is the essence of Python web applications. The popular web frameworks are all supplemented and improved on this basis.

The web development of Python makes us more focused on generating HTML documents. Because we don't want to be exposed to TCP connections, HTTP raw request and response formats, we need a unified interface that allows us to concentrate on writing Web business in Python, which is WSGI (web server gateway interface), which feels similar to servlet. Unlike service () in servlet in Java, the WSGI interface definition is very simple, requiring only Web developers to implement a function to respond to HTTP requests. For example, login,index method and so on. Therefore, the screening of url is also a top priority.

From the perspective of architectural pattern, Java focuses more on MVC, while in Python it is MTV (not the mtv of music).

To put it simply, MVC and MTV are similar, but belong to different development directories. Are decoupled from the existing implementation, through configuration and expansion to achieve complex requirements.

After reading the above, do you have any further understanding of how to analyze the Web development of Java and Python? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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