What does Response sendError do?
With HttpServletResponse#sendError you specifically set the HTTP status code, and also an optional message that client will receive. When throwing an exception, if there is no handler to catch the exception, servlet container will send 500 status message to the client.
Which response types can a servlet return?
It returns the name of the MIME charset that was used in the body of the client response. It returns the response content type. e.g. text, HTML etc.
How do I change the response status code in Java?
To set a different HTTP status code from your Servlet, call the following method on the HttpServletResponse object passed in to your server: res. setStatus(nnn); where nnn is a valid HTTP status code.
What is HTTP request and response in Java?
HTTP works as a request-response protocol between a client and server. Example: A client (browser) sends an HTTP request to the server; then the server returns a response to the client. The response contains status information about the request and may also contain the requested content.
How do I change my status code in response?
To set a different HTTP Status Code in the Response, do the following:
- Go to Manage Dependencies… and add the SetStatusCode action of the HTTPRequestHandler extension.
- Use the SetStatusCode action in your REST API Method or callback flow right before the end node.
What is status code in servlet?
public void setStatus ( int statusCode ) This method sets an arbitrary status code. The setStatus method takes an int (the status code) as an argument. If your response includes a special status code and a document, be sure to call setStatus before actually returning any of the content with the PrintWriter.
Which class is used for to print output in Servlet page?
The ServletOutputStream class provides print() and println() methods that are overloaded.
What is difference between HTTP request and HTTP response?
HTTP messages are how data is exchanged between a server and a client. There are two types of messages: requests sent by the client to trigger an action on the server, and responses, the answer from the server.
What is the difference between request getParameter () and request getAttribute ()?
getParameter() returns http request parameters. Those passed from the client to the server. getAttribute() is for server-side usage only – you fill the request with attributes that you can use within the same request.
How do I find my API response status code?
To get the status code of an HTTP request made with the fetch method, access the status property on the response object. The response. status property contains the HTTP status code of the response, e.g. 200 for a successful response or 500 for a server error. Copied!