(After the client connects to the web server, if you want to obtain a certain web resource in the web server, you need to adhere to a certain communication format. The HTTP protocol defines the communication format between the client and the web server. HTTP is the abbreviation of hypertext transfer protocol. It is a usage layer protocol of TCP/IP protocol. It is about defining the process of exchanging data between WEB browser and WEB server. HTTP protocol is the cornerstone of learning Java Web development. Without a thorough understanding of HTTP protocol, you can't say that you have mastered Web development, nor can you manage and maintain some messy Web sites. HTTP uses the request response mode for transmission. One request corresponds to one response, and requests can only be suggested by the client. Use Telnet to demonstrate the request and response process to install the IE browser plug-in HttpWatch, and detect that the IE browser obtains a page through the HTTP protocol. HTTP protocol version: HTTP/1.0 and HTTP/1.1 can't solve the problem. Come to our Love Open Source and see if there are any materials or software, tutorials, patches, source code, etc. you need)
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