What is the difference between doget and dopost methods in servlets?

2. • protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // Your implementation here }

3. Parameter Passing:

   • doGet(): In a GET request, data is typically sent as part of the URL, either through query parameters or path parameters. The doGet() method can retrieve this data using the HttpServletRequest object.
   • doPost(): In a POST request, data is sent as part of the request body. The doPost() method retrieves this data from the HttpServletRequest object.

4. When to Use Each:

   • doGet():

     • Use doGet() when the operation is idempotent, meaning it doesn't change the state of the server.
     • Use it for safe and read-only operations.
     • It is commonly used for retrieving data, displaying information, or performing search operations.

   • doPost():

     • Use doPost() when the operation modifies the state on the server, such as updating a database or creating new records.
     • It is commonly used for form submissions and other operations that involve data modification on the server.

5. Request Parameters:

   • doGet(): Parameters are typically included in the URL as query parameters (?param1=value1&param2=value2) and can be accessed using the request.getParameter() method.
   • doPost(): Parameters are often included in the request body, especially when dealing with forms, and can be accessed similarly using the request.getParameter() method.

In practice, it's common for servlets to implement both doGet() and doPost() methods to handle both GET and POST requests, providing a unified processing logic for a particular resource. This is often done by calling the appropriate method from within the other to reuse code when the same logic applies to both HTTP methods.