What is the difference between doGet() and doPost() methods in a Java Servlet?

Understanding the Difference Between doGet() and doPost() Methods in a Java Servlet

When working with Java Servlets, it is important to understand the distinction between the doGet() and doPost() methods. These methods are used to handle HTTP GET and POST requests, respectively, and play a crucial role in processing client requests.

doGet() Method: The doGet() method is used to handle HTTP GET requests sent by a client. It is typically used for requests that do not require sensitive data or modifications on the server-side. The data is sent as URL parameters which can be accessed by the servlet to process the request.

doPost() Method: On the other hand, the doPost() method is used to handle HTTP POST requests in a more secure manner. POST requests are commonly used when submitting form data or sensitive information that should not be displayed in the URL. The data is sent in the request body, making it more secure compared to GET requests.

In summary, the main difference between doGet() and doPost() methods in a Java Servlet lies in the type of HTTP request they handle (GET vs POST) and the way data is transferred. Understanding when to use each method is essential for efficiently handling client requests in a Java web application.