Can we override doGet method?

Can we override doGet method?

Since the routing takes place in service(), there is no need to generally override service() in an HTTP servlet. Instead, override doGet(), doPost(), and so on, depending on the expected request type. Yes, it helped. Thank you for the documentation.

Can we override doGet method in servlet?

Unlike Generic Servlet, the HTTP Servlet doesn’t override the service() method. Instead it overrides the doGet() method or doPost() method or both.

What will happen if you override the service () in your servlet say Myservlet )?

In a Sun Java System Web Server, request data is already preprocessed into a name-value list by the time the servlet sees the data, so simply overriding the service() method in an HTTP servlet does not lose any functionality.

Which of the following are HTTP methods of a HttpServlet which can be overridden?

A subclass of HttpServlet must override at least one method, usually one of these:

• doGet , if the servlet supports HTTP GET requests.
• doPost , for HTTP POST requests.
• doPut , for HTTP PUT requests.
• doDelete , for HTTP DELETE requests.
• init and destroy , to manage resources that are held for the life of the servlet.

What is doGet method in servlet?

the doGet() method is called by the server (via the service method) to allow a servlet to handle a GET request. Generally, we use the doGet() method for getting the information from the server.

What is service method in servlet?

service() method: The service() method of the Servlet is invoked to inform the Servlet about the client requests. This method uses ServletRequest object to collect the data requested by the client. This method uses ServletResponse object to generate the output content.

What is difference between doGet () and doPost () methods?

doGet() shall be used when small amount of data and insensitive data like a query has to be sent as a request. doPost() shall be used when comparatively large amount of sensitive data has to be sent. Examples are sending data after filling up a form or sending login id and password.

What does doGet method do in servlet?

doGet. Called by the server (via the service method) to allow a servlet to handle a GET request. Overriding this method to support a GET request also automatically supports an HTTP HEAD request. A HEAD request is a GET request that returns no body in the response, only the request header fields.

What is HttpServlet in Java?

HttpServlet is an abstract class given under the servlet-api present. It is present in javax. servlet. It extends GenericServlet class. When the servlet container uses HTTP protocol to send request, then it creates HttpServletRequest and HttpServletResponse objects.

What will happen if we will call doGet () inside doPost () and doPost () inside doGet ()?

4 Answers. The example mean all the request whether it is GET or POST it will be going to be handle by the single method. You can move the doPost code to doGet and call doGet method from doPost ,thr will be no issue.

What type of servlet use these methods doGet () doPost () doHead () doDelete () doTrace ()?

HttpServlets – doGet(), doPost(),doHead, doDelete(), doTrace() – Servlets.

What is the use of Doget in HTTPServlet?

1. protected void doGet (HttpServletRequest req, HttpServletResponse resp): This method is called by servlet service method to handle the HTTP GET request from client. When overriding this method, read the request data, write the response headers, get the response’s writer or output stream object, and finally, write the response data.

What methods must a subclass of a HTTPServlet override?

A subclass of HttpServlet must override at least one method, usually one of these: doGet, if the servlet supports HTTP GET requests init and destroy, to manage resources that are held for the life of the servlet getServletInfo, which the servlet uses to provide information about itself

What is HTTPServlet in servlet?

HttpServlet is a base class to be extended to create an HTTP servlet suitable for handling HTTP request and providing responses. We usually override methods like doGet (..), doPost (..) etc. Accessing exceptions information in Servlet.

Should I override the dooptions and DoTrace methods in servlets?

Likewise, there’s almost no reason to override the doOptions and doTrace methods. Servlets typically run on multithreaded servers, so be aware that a servlet must handle concurrent requests and be careful to synchronize access to shared resources.