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javaservletsservlet-container

doGet or doPost method invocation

How does the servlet container know whether to call doGet or doPost method.

When I make a get request doGet is called, When I make a post request doPost is called , but where is the logic to decide this .

Solution

  • You never really call doGet() or doPost() (the service() method will, and it is called by the Web container as you read in the lifecycle).

    The service() method detects the HTTP method used and delegates to doGet(), doPost() and other methods which process HTTP requests in a HTTPServlet. It also encapsulates the ServletRequest and ServletResponse objects in HttpServletRequest and HttpServletResponse objects which contain additional context data from the HTTP headers.

    Tahnks to @helderdarocha.

    For more;