Django Request Lifecycle Flow Explained

This is my old resume 😊 : Personal Information Name: Weiqing Liu Email: liuweiqing147@gmail.com GitHub: 14790897 Technical Stack: Vue, JavaScript, Python, Java, Docker, Linux, PyQt5 Project Experience Project One (Open Source): CookiesClerk(https://lnkd.in/ga2RpQuu) Time: August 2023 - November 2023 Description: This is a Google browser plugin for logging into multiple accounts on the same website simultaneously. Skills Used: Built the plugin interface with Vue, used Javascript and Google browser plugin API to complete cookies switching and saving functions, implemented cookies saving, loading, deleting, opening multiple website accounts simultaneously, and smartly matching domain names to switch cookies. Project Two (Open Source): Handwriting-Web(https://lnkd.in/gEVK6C-U) Time: June 2023 - December 2023 Description: A web version that converts text into simulated handwriting. Skills Used: Built the web interface with Vue, used Python's Flask as the backend processing, implemented multiple APIs such as generating handwriting, extracting text from Word/pdf documents, getting all file fonts on the server, recognizing the style of user-uploaded images, deployed using Docker Compose, and used Nginx in Docker to handle frontend page returns and backend API request forwarding. Project Three (Open Source): Nighttime-Wisdom-Star(https://lnkd.in/eK92mf5B) Time: May 2023 - June 2023 Description: This is an application that uses the idle quota of GPT-4 to process user questions at night. Skills Used: Built dialogue, login and registration pages with Vue, used WebSocket to handle backend real-time completed dialogue requests, implemented server push messages, saved user input requests during the day to the database, then used a special API to request the chatgpt webpage at night to get processing results, saved to the database, and when the user visited the next day, the program could read the processing results from the database. Demo account 123 password 123. Project Five: Java Community Forum Development Time: October 2023 - December 2024 Description: Second development of the symphony community forum Skills Used: Used freemaker frontend and java backend to reconstruct the article list page, used a timer to update mysql database data from a specific API every day, added invitation data writing to mysql database and generating invitation QR code function on the original invitation code function.

Hi Followers , Django <-> MySQL Integration flow Runtime Flow: 1. User sends request (Browser/API) 2. URL dispatcher routes request 3. View handles logic 4. ORM converts query → SQL 5. MySQL executes query 6. Result → Django → Response (HTML/JSON) #Django #Python #FullStackDevelopment #WebDevelopment #Database #SoftwareEngineering #Learning #StudentProjects #PlacementPreparation #PythonFullStack #ArtificialIntelligence #APIIntegration #FullStackDevelopment #InternshipTraining #Workshop #StudentProjects #Innovation #CareerDevelopment #FutureDevelopers #TechTraining #SriLankaStudents #SriLankanStudents #SriLankaFaculty #ColomboStudents #NepalStudents #NepaliStudents #NepalFaculty #KathmanduStudents #NepalEducation #BhutanStudents #BhutanFaculty #BhutanEducation #TaiwanStudents #TaiwanFaculty #TaipeiStudents #TaiwanEducation #MacauStudents #MacauFaculty #MongoliaStudents #MongolianStudents #MongoliaFaculty #VietnamStudents #VietnamJobs #VietnamCareers #WorkInVietnam #JobsInVietnam #VietnamHiring #VietnamOpportunities #VietnamTech #VietnamITJobs #AIJobsVietnam #PythonJobsVietnam #SoftwareJobsVietnam #TechCareersVietnam #VietnamFreshers #GraduateJobsVietnam #FreshersHiring #CampusToCorporate #StudentCareers #FirstJobVietnam #PlacementOfficers #UniversityPlacements #CampusRecruitment #CollegePlacements #UniversityHiring #CareerServices #HiringVietnam #RecruitmentVietnam #HRVietnam #TalentAcquisitionVietnam #HiringNowVietnam #GlobalCareers #InternationalJobs #StudyAndWorkVietnam #TrainingAndPlacement #SkillDevelopment #Employability #InternationalStudents #InternationalFaculty #GlobalStudents #GlobalFaculty #InternationalEducation #GlobalLearning #AcademicNetworking #StudentCommunity #FacultyDevelopment #EducationLeadership

Hi Followers, its very useful for the Django developer. Django ORM Process and Database Integration Explained I would like to share a structured understanding of how the Object Relational Mapping (ORM) process works in a Django full stack application. ORM (Object Relational Mapping) is a powerful concept that allows developers to interact with databases using Python objects instead of writing raw SQL queries. This improves development speed, code readability, and security. Django ORM Workflow The ORM process in Django follows a clear pipeline: Models (Python Classes) → Django ORM Layer → SQL Queries (Auto Generated) → Database Execution (SQLite, MySQL, PostgreSQL) → Results Returned as Python Objects Process Explanation Define models in models.py using Python classes Django ORM converts Python queries into SQL statements SQL queries are executed in the configured database Results are returned as QuerySets or Python objects Example Operations Using ORM Create Student.objects.create(name="Lakshman", age=21) Read Student.objects.all() Student.objects.filter(age__gt=18) Update student = Student.objects.get(id=1) student.name = "Ram" student.save() Delete student.delete() Advantages of Django ORM No need to write complex SQL queries Database independent (SQLite, MySQL, PostgreSQL supported) Protection against SQL injection Faster development with clean and maintainable code Object-oriented approach to database interaction #Django #Python #ORM #FullStackDevelopment #WebDevelopment #Database #SoftwareEngineering #PlacementPreparation #PythonFullStack #ArtificialIntelligence #APIIntegration #FullStackDevelopment #InternshipTraining #Workshop #StudentProjects #Innovation #CareerDevelopment #SonaCollegeOfTechnology #FutureDevelopers #TechTraining #SriLankaStudents #SriLankanStudents #SriLankaFaculty #ColomboStudents #NepalStudents #NepaliStudents #NepalFaculty #KathmanduStudents #NepalEducation #BhutanStudents #BhutanFaculty #BhutanEducation #TaiwanStudents #TaiwanFaculty #TaipeiStudents #TaiwanEducation #MacauStudents #MacauFaculty #MongoliaStudents #MongolianStudents #MongoliaFaculty #VietnamStudents #VietnamJobs #VietnamCareers #WorkInVietnam #JobsInVietnam #VietnamHiring #VietnamOpportunities #VietnamTech #VietnamITJobs #AIJobsVietnam #PythonJobsVietnam #SoftwareJobsVietnam #TechCareersVietnam #VietnamFreshers #GraduateJobsVietnam #FreshersHiring #CampusToCorporate #StudentCareers #FirstJobVietnam #PlacementOfficers #UniversityPlacements #CampusRecruitment #CollegePlacements #UniversityHiring #CareerServices #HiringVietnam #RecruitmentVietnam #HRVietnam #TalentAcquisitionVietnam #HiringNowVietnam #GlobalCareers #InternationalJobs #StudyAndWorkVietnam #TrainingAndPlacement #SkillDevelopment #Employability #InternationalStudents #InternationalFaculty #GlobalStudents #GlobalFaculty #InternationalEducation #GlobalLearning #AcademicNetworking #StudentCommunity #FacultyDevelopment #EducationLeadership

Hi Followers, Roadmap of Django Development Process and Database Tools This roadmap is designed to help students and developers understand how a real-world Django project is structured and executed step by step. Key Stages Covered in the Roadmap Requirement Analysis Understanding the problem statement, gathering requirements, and defining the project scope. Project Setup Installing Python and Django, creating a virtual environment, initializing the project, and configuring settings. Database Setup Selecting the appropriate database and configuring database connections. App Creation Creating Django apps and registering them within the project. Model Design Defining database models, relationships, and running migrations. URL Configuration Mapping URLs to views for handling requests. Views Development Implementing business logic using function-based or class-based views. Templates and Frontend Designing UI using HTML, CSS, JavaScript, and integrating with Django templates. Forms and Validation Handling user input and implementing server-side validation. Authentication and Authorization Managing user registration, login, permissions, and access control. Testing Performing unit testing, integration testing, and validating application functionality. Deployment Preparing the project for production and deploying to cloud platforms. Maintenance Monitoring performance, handling errors, and updating the system. #Django #Python #FullStackDevelopment #WebDevelopment #Database #SoftwareEngineering #Learning #StudentProjects #PlacementPreparation #PythonFullStack #ArtificialIntelligence #APIIntegration #FullStackDevelopment #InternshipTraining #Workshop #StudentProjects #Innovation #CareerDevelopment #FutureDevelopers #TechTraining #SriLankaStudents #SriLankanStudents #SriLankaFaculty #ColomboStudents #NepalStudents #NepaliStudents #NepalFaculty #KathmanduStudents #NepalEducation #BhutanStudents #BhutanFaculty #BhutanEducation #TaiwanStudents #TaiwanFaculty #TaipeiStudents #TaiwanEducation #MacauStudents #MacauFaculty #MongoliaStudents #MongolianStudents #MongoliaFaculty #VietnamStudents #VietnamJobs #VietnamCareers #WorkInVietnam #JobsInVietnam #VietnamHiring #VietnamOpportunities #VietnamTech #VietnamITJobs #AIJobsVietnam #PythonJobsVietnam #SoftwareJobsVietnam #TechCareersVietnam #VietnamFreshers #GraduateJobsVietnam #FreshersHiring #CampusToCorporate #StudentCareers #FirstJobVietnam #PlacementOfficers #UniversityPlacements #CampusRecruitment #CollegePlacements #UniversityHiring #CareerServices #HiringVietnam #RecruitmentVietnam #HRVietnam #TalentAcquisitionVietnam #HiringNowVietnam #GlobalCareers #InternationalJobs #StudyAndWorkVietnam #TrainingAndPlacement #SkillDevelopment #Employability #InternationalStudents #InternationalFaculty #GlobalStudents #GlobalFaculty #InternationalEducation #GlobalLearning #AcademicNetworking #StudentCommunity #FacultyDevelopment #EducationLeadership

🚀 Day 87 | My Learning Journey in Java Full Stack Development! Hello LinkedIn Network, I’m happy to share that I have developed a Full Stack Web Application – “My Diary App” as part of my Java Full Stack learning journey, where I gained hands-on experience in frontend, backend, and database integration. 📌 Project Overview: My Diary App is a full stack web application designed to help users securely manage their personal diary entries in a simple and organized way. The application allows users to register, log in, and maintain their daily thoughts or records digitally. 💻 Tech Stack & Tools Used: ● Backend: Java, Spring Framework (Spring MVC) ● Persistence Layer: Hibernate ORM (with HibernateTemplate) ● Frontend: JSP, HTML5, CSS3, JSTL ● Database: MySQL ● Architecture: MVC Design Pattern ● Server: Apache Tomcat ● IDE: Eclipse 📋 Key Features Implemented: ✔️ User Registration & Login Authentication ✔️ Session Management using HttpSession ✔️ Secure Access to User-Specific Data ✔️ CRUD Operations (Create, Read, Update, Delete) for Diary Entries ✔️ Dynamic Data Rendering using JSTL ✔️ Clean UI Design with responsive styling 🌟 Key Concepts I Gained Hands-On Experience With: ✔️ Understanding of MVC Architecture (Controller → Service → DAO → Database) ✔️ Handling HTTP Requests & Responses using Spring Controllers ✔️ Implementing Business Logic Layer with interfaces and implementations ✔️ Working with HibernateTemplate for database operations ✔️ Writing efficient queries using Hibernate Criteria API ✔️ Utilizing ModelAndView to pass data between Controller and View ✔️ Managing transactions and dependency injection with Spring ✔️ Designing user-friendly UI with JSP & CSS 👉 End-to-end flow: UI → Controller → Business → DAO → Database 💻 GitHub Repository: https://lnkd.in/gcHsUf5y This project helped me move beyond theory and truly understand how enterprise-level applications work. I now feel confident in building full stack applications, debugging issues, and designing structured systems. 🔜 What’s Next: Spring Boot, REST APIs, JWT Authentication, ReactJS. I’m actively looking for opportunities as a Java Full Stack Developer where I can apply my skills, learn from experienced professionals, and contribute to meaningful projects. Let’s connect and grow together! 🤝 #Java #SpringMVC #Hibernate #FullStackDevelopment #WebDevelopment #MySQL #JSP #LearningJourney #Projects #OpenToWork #DailyLearning #SoftwareDevelopment

🧠 If you develop with Node.js, Python, PHP, Java, Go, or .NET, make sure your dependencies are up to date — new CVEs have been reported this week affecting key open-source packages. (04/14/2026) 🐍 PYTHON (pip) Stats: 🛡️ CVEs: 4 | 📦 Packages: 4 | 🚨 Critical: 1 | 🔥 High: 1 | ⚠️ Medium: 2     🚨 N/A — excel-mcp-server (<= 0.1.7)     🔥 CVE-2026-40192 — pillow (>= 10.3.0, < 12.2.0)     ⚠️ N/A — gdown (<= 5.2.1) 🟦 NODE.JS (npm) Stats: 🛡️ CVEs: 3 | 📦 Packages: 3  | 🔥 High: 2 | ⚠️ Medium: 1     🔥 N/A — @nestjs/microservices (<= 11.1.18)     🔥 N/A — @aiondadotcom/mcp-ssh (< 1.3.5)     ⚠️ N/A — follow-redirects (<= 1.15.11) ☕ JAVA (Maven) Stats: 🛡️ CVEs: 2 | 📦 Packages: 2  | 🔥 High: 1 | ⚠️ Medium: 1     🔥 CVE-2026-5795 — org.eclipse.jetty.ee11:jetty-ee11-jaspi (>= 12.1.0, <= 12.1.7)     ⚠️ N/A — org.asynchttpclient:async-http-client (< 3.0.9) 💎 RUBYGEMS Stats: 🛡️ CVEs: 1 | 📦 Packages: 1  | 🟡 Low: 1     🟡 N/A — fat_free_crm (< 0.26.0) 🐘 PHP (Composer) Stats: 🛡️ CVEs: 4 | 📦 Packages: 4  | ⚠️ Medium: 1 | 🟡 Low: 3     ⚠️ N/A — webonyx/graphql-php (<= 15.31.4)     🟡 N/A — kimai/kimai (<= 2.52.0)     🟡 N/A — kimai/kimai (<= 2.52.0) 🦀 RUST Stats: 🛡️ CVEs: 2 | 📦 Packages: 2  | 🔥 High: 1 | 🟡 Low: 1     🔥 CVE-2026-40323 — sp1_sdk (<= 6.0.2)     🟡 N/A — rand (>= 0.7.0, < 0.9.3) 🐹 GO Stats: 🛡️ CVEs: 4 | 📦 Packages: 4  | 🔥 High: 2 | ⚠️ Medium: 2     🔥 N/A — github.com/minio/minio (>= 0.0.0-20230506025312-76913a9fd5c6, <= 0.0.0-20260212201848-7aac2a2c5b7c)     🔥 N/A — github.com/monetr/monetr (<= 1.12.3)     ⚠️ CVE-2026-39984 — https://lnkd.in/eFgqw4WZ (<= 2.0.5) ⚙️ .NET (NuGet) Stats: 🛡️ CVEs: 4 | 📦 Packages: 4  | 🔥 High: 2 | ⚠️ Medium: 2     🔥 CVE-2026-33901 — Magick.NET-Q16-AnyCPU (< 14.12.0)     🔥 CVE-2026-33908 — Magick.NET-Q16-AnyCPU (< 14.12.0)     ⚠️ CVE-2026-33899 — Magick.NET-Q16-AnyCPU (< 14.12.0) 🔐 Powered by https://www.vulnmatter.com #cybersecurity #security #cve #python #nodejs #java #ruby #php #rust #golang #dotnet CVE-2026-40192 CVE-2026-5795 CVE-2026-40323 CVE-2026-39984 CVE-2026-33901 CVE-2026-33908 CVE-2026-33899

🧠 If you develop with Node.js, Python, PHP, Java, Go, or .NET, make sure your dependencies are up to date — new CVEs have been reported this week affecting key open-source packages. (04/14/2026) #cybersecurity #security #cve #python #nodejs #java #ruby #php #rust #golang #dotnet CVE-2026-40192 CVE-2026-5795 CVE-2026-40323 CVE-2026-39984 CVE-2026-33901 CVE-2026-33908 CVE-2026-33899

As part of my journey in learning Java backend development, I recently worked on a project using **Spring JDBC**, and it gave me a solid understanding of how real-world database operations are handled. 💡 In this project, I built a simple **Item Management System** where I implemented: ✔️ Insert new item into database ✔️ Display all items ✔️ Update item details ✔️ Delete item records 🔹 I used **Spring’s JdbcTemplate** to interact with the database, which made SQL operations much cleaner and easier compared to traditional JDBC. 🔹 I also explored **Dependency Injection using XML configuration**, where I configured beans like DataSource and JdbcTemplate in `jdbc.xml`. ⚙️ Technologies & Concepts Used: ✔️ Spring Core (Dependency Injection) ✔️ Spring JDBC (`JdbcTemplate`) ✔️ MySQL Database ✔️ Maven Project Structure ✔️ XML-based Configuration (`jdbc.xml`) 🧠 What I learned: 👉 How `JdbcTemplate` simplifies database operations compared to traditional JDBC 👉 Writing clean DAO layer with proper separation of concerns 👉 Managing database connections using Spring 👉 Implementing CRUD operations in a structured way 💬 One thing I really liked about this project is how Spring reduces boilerplate code and makes database interaction much cleaner and more readable. This project helped me strengthen my backend fundamentals and gave me more confidence in working with real-time database operations. 📌 Looking forward to building more projects using Spring Boot next! I am going to share my GitHub link, so you can connect with me through that 🔗 https://lnkd.in/gFhdXmZs #Java #SpringFramework #SpringJDBC #BackendDevelopment #MySQL #LearningJourney #Freshers #OpenToWork #GlobalQuestTechnologies

Quick challenge before the explanation: Input: Hello World Java What should Java print? Think first. Answer below. . . Answer: Hello / World / Java All three print.  opens and closes — they match. None only appears when the opening and closing tag names differ. Like  text  — that prints None. HackerRank — Tag Content Extractor. Solved today. The regex that handles everything: <(.+)>([^<]+)<\/\1> Breaking it down: <(.+)> Matches the opening tag. Captures the tag name into group 1. ([^<]+) Captures the content between tags. [^<] means no < character allowed inside. This prevents false matches with nested content. <\/\1> The closing tag must match group 1 exactly. \1 is a backreference — same concept from the duplicate words problem.  opened means   must close it. Mismatch = no match = print None. The Java scanning logic: Pattern pattern = Pattern.compile("<(.+)>([^<]+)<\\/\\1>"); Matcher matcher = pattern.matcher(line); boolean found = false; while (matcher.find()) {   System.out.println(matcher.group(2));   found = true; } if (!found) System.out.println("None"); The concept that clicked today: Pattern = the compiled rule Matcher = the object that searches your string matcher.find() = moves to next valid match matcher.group(2) = extracts group 2 content The same \1 backreference from duplicate words appeared here in a completely different context. Concepts are connecting now. April 21. Posting daily until I'm hired. 🎥 Watch today's log: https://lnkd.in/d5xTUmi4 Open to opportunities in: Web Development | Java | Data Analytics | Cloud Computing Were you right on the first guess? And — what does [^<]+ actually prevent here? Drop your answer below, I reply to everyone 👇 #OpenToWork #Java #Regex #HackerRank #BuildInPublic #100DaysOfCode

In Django, sessions are a way to store user-specific data on the server across multiple requests. What sessions do Keep data for a user between pages. Track a browser using a session ID in a cookie. Store things like login status, cart items, or user preferences. How Django sessions work The browser gets a session ID cookie. Django stores the actual session data server-side. On later requests, Django reads the session ID and restores the data. Common storage backends Database-backed sessions. Cache-backed sessions. File-based sessions. #Python #Django #Testing #JUnitConcept #SoftwareDevelopment #FullStack #CodeQuality #Automation #Learning #TechTraininglik #WebDevelopment #Database #SoftwareEngineering #Learning #StudentProjects #PlacementPreparation #PythonFullStack #ArtificialIntelligence #APIIntegration #FullStackDevelopment #InternshipTraining #Workshop #StudentProjects #Innovation #CareerDevelopment #FutureDevelopers #TechTraining #SriLankaStudents #SriLankanStudents #SriLankaFaculty #ColomboStudents #NepalStudents #NepaliStudents #NepalFaculty #KathmanduStudents #NepalEducation #BhutanStudents #BhutanFaculty #BhutanEducation #TaiwanStudents #TaiwanFaculty #TaipeiStudents #TaiwanEducation #MacauStudents #MacauFaculty #MongoliaStudents #MongolianStudents #MongoliaFaculty #VietnamStudents #VietnamJobs #VietnamCareers #WorkInVietnam #JobsInVietnam #VietnamHiring #VietnamOpportunities #VietnamTech #VietnamITJobs #AIJobsVietnam #PythonJobsVietnam #SoftwareJobsVietnam #TechCareersVietnam #VietnamFreshers #GraduateJobsVietnam #FreshersHiring #CampusToCorporate #StudentCareers #FirstJobVietnam #PlacementOfficers #UniversityPlacements #CampusRecruitment #CollegePlacements #UniversityHiring #CareerServices #HiringVietnam #RecruitmentVietnam #HRVietnam #TalentAcquisitionVietnam #HiringNowVietnam #GlobalCareers #InternationalJobs #StudyAndWorkVietnam #TrainingAndPlacement #SkillDevelopment #Employability #InternationalStudents #InternationalFaculty #GlobalStudents #GlobalFaculty #InternationalEducation #GlobalLearning #AcademicNetworking #StudentCommunity #FacultyDevelopment #EducationLeadership