What is the difference between doGet() and doPost() methods in Servlets and when would you use each one?

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Answered by suresh

Difference between doGet() and doPost() methods in Servlets

Difference between doGet() and doPost() methods in Servlets

In Servlets, the main difference between the doGet() and doPost() methods is in the way they handle HTTP requests:

  • doGet(): This method is used to retrieve data from the server. It is suitable for handling HTTP GET requests, which are typically used for requesting data from the server without modifying it. Use doGet() when you want to fetch information from the server without changing any server-side resources.
  • doPost(): This method is used to send data to the server. It is suitable for handling HTTP POST requests, which are commonly used for submitting form data or updating server-side resources. Use doPost() when you need to send data to the server for processing or updating the server-side resources.

It is important to choose the appropriate method based on the nature of the request being made. Using doGet() for operations that modify server-side resources can expose security vulnerabilities, while using doPost() for simple data retrieval can lead to inefficient practices.

Overall, understanding the difference between doGet() and doPost() methods in Servlets is crucial for developing secure and efficient web applications.

Answer for Question: What is the difference between doGet() and doPost() methods in Servlets and when would you use each one?