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Tag Archives: servlets

Java Servlet File Download and File Upload Example

Hello readers, in this tutorial, we will show you how to set up the File Upload and Download functionality in a Servlet based Java web application.                     Table Of Contents 1. Introduction 1.1 What is Servlet? 1.2 Servlet File Upload 1.3 Servlet File Download 2. Java Servlet File Download and File ...

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Java Servlet Exception Handling Example

When a servlet generates an error developers can handle those exceptions in various ways, let’s say a user tries a URL that does not map to a servlet the user typically gets a 404 page. With the error listing in the deployment descriptor, we can handle those exceptions. In this tutorial, we will see how to tackle these exception handling ...

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Java Servlet ServletConfig vs ServletContext Example

Servlets are modules of the Java code that run in a server application to answer the client requests. ServletContext and ServletConfig are two important interfaces of the Servlet API which is used by Java J2EE programmer during the web application development. In this tutorial, we will see how the ServletContext and ServletConfig are different from each other. 1. Introduction The ...

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Java Servlet Session Management Example

We all know that HTTP is a stateless protocol i.e. all requests and responses are independent. But sometimes developers need to keep track of the client’s activity across the multiple requests. In this tutorial, we will see how to achieve the Session Management in Servlet Java programming. 1. Introduction Session tracking or Session management is an important feature of the ...

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Java Servlet Database Connectivity Example

Servlets are modules of the Java code that run in a server application to answer the client requests. In this tutorial, we will explain and show you how to connect the servlet to the database. 1. Introduction Servlet is a Java program which exists and executes in the J2EE servers and is used to receive the HTTP protocol request, process ...

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Java Servlet Cookie Methods Example

Servlets are modules of the Java code that run in a server application to answer the client requests. In this tutorial, we will show you how to store the user information in the cookie object and access it in the Servlet. 1. Introduction Servlet is a Java program which exists and executes in the J2EE servers and is used to ...

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Java Servlet HTTP Response Headers Example

Servlets are modules of the Java code that run in a server application to answer the client requests. In this tutorial, we will explain and show you how to use the HTTP response headers in the Servlet page. 1. Introduction Servlet is a Java program which exists and executes in the J2EE servers and is used to receive the HTTP ...

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Java Servlet HTTP Request Headers Example

Servlets are modules of the Java code that run in a server application to answer the client requests. In this tutorial, we will explain and show you how to display the HTTP header information of a request in the Servlet page. 1. Introduction Servlet is a Java program which exists and executes in the J2EE servers and is used to ...

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Java Servlet Hidden Field Example

A hidden form field is a technique used to store the session information for a particular client and is one of an important Session Tracking Technique. In this tutorial, we will explain and show you how to handle the hidden fields in a Servlet. 1. Introduction Session Tracking is a technique to maintain the requests of the same user for a ...

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Java Servlet onclick Example

Servlets are modules of the Java code that run in a server application to answer the client requests. They are not tied to a specific client-server protocol but are most commonly used with HTTP. The word “Servlet” is often used in the meaning of “HTTP Servlet“. In this tutorial, we will explain and show you how to call a Servlet ...

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