Category Archives: Без рубрики

In Java servlets, if you want to call another servlet from within your current servlet, you have a few options depending on what exactly you mean by “call”: 1. Forward the request (internal call, no redirect visible to the client) … Continue reading →

The RequestDispatcher is a Servlet API tool that lets you forward or include one web resource (like a servlet, JSP, or static file) from another servlet. 📦 What is RequestDispatcher? It’s an interface in the javax.servlet package that allows one … Continue reading →

The ServletRequest interface is your main gateway to reading incoming data from a client (browser, mobile app, etc.) in a Java web application. It lets you extract everything about the request — like parameters, headers, body, input streams, and metadata. … Continue reading →

The ServletResponse interface is used to build and send the response from a servlet back to the client (usually a browser or an HTTP client). 📦 What Is ServletResponse? It’s a core part of the Servlet API: It represents the … Continue reading →

If you have two servlets, the servlet container will create two separate ServletConfig instances — one for each servlet. 🧠 Why? Because ServletConfig is meant to hold configuration specific to one servlet, such as: Init parameters defined in <servlet> tag … Continue reading →

Both ServletContext and ServletConfig are part of the Servlet API, but they serve different scopes and purposes. Let’s break them down side by side 👇 🧠 Core Difference Feature ServletConfig ServletContext Scope One servlet only Entire web application Purpose Passes … Continue reading →

If ServletConfig is like a servlet’s private config, then ServletContext is like a global shared workspace for the entire web application. 🌍 What Is ServletContext? ServletContext is an object provided by the servlet container that: ✅ Represents the web application’s … Continue reading →

ServletConfig is a special interface in the Servlet API that allows the servlet container to pass configuration information to a servlet at initialization time. You can think of it as the servlet’s own private config object, defined in web.xml (or … Continue reading →

Handling exceptions thrown by other servlets is crucial for building robust, user-friendly web applications. There are multiple ways to handle exceptions in a Java servlet-based application, and it all depends on how centralized and graceful you want the handling to … Continue reading →

The 1 in loadOnStartup = 1 (or <load-on-startup>1</load-on-startup>) is an integer priority that tells the servlet container: 👉 “Load this servlet when the application starts — and do it in this order relative to other servlets.” 🔢 What Does the … Continue reading →