This article systematically organizes the status codes in the HTTP protocol, categorizing and analyzing their meanings and applicable scenarios, which can help developers quickly locate request issues and optimize interaction logic. It also designs a standard based on the combination of HTTP methods and status codes. Detailed Explanation of HTTP Status Codes: Uses and Meanings … Read more
HTTP status codes are the core feedback mechanism in client-server communication, appearing as three-digit numbers in the HTTP response headers, revealing the result of the request processing. Understanding these status codes is crucial for developers during debugging, operations troubleshooting, or API design. This article systematically analyzes common HTTP status codes and their application scenarios, helping … Read more
In the vast world of the internet, when you enter a URL in the browser’s address bar and press Enter, a grand “drama” of data exchange quietly unfolds. The Hypertext Transfer Protocol (HTTP) serves as a bridge for communication between the client (such as a browser) and the server, enabling web browsing, data exchange, and … Read more
Click the blue text to follow! Quick Troubleshooting Design Patterns for Function Block Diagrams in PLC Process Control A few days ago, Xiao Zhang rushed over from the workshop, sweating profusely: “Old Li, the production line 3 has stopped again, and the system is indicating a function block error. The management is pushing hard, what … Read more
Status Code Meaning Scenario 400 Syntax Error Invalid request structure, such as incorrect JSON format, etc. 403 Insufficient Permissions User does not have permission to perform the operation 404 Resource Not Found Requested data does not exist, etc. 422 The server understands the type of the request entity and the syntax is correct, but it … Read more
Click the blue “Programmer DD” above and select “Add to Favorites” Reply with “Resources” to get exclusive learning materials! Source | 8rr.co/4zhkWhether in backend or frontend development, we all encounter different HTTP status codes. Some common status codes include: 200 – The server successfully returned the webpage 404 – The requested webpage does not exist … Read more