I have a web application in Java which does data exchange using XML. I have written a servlet and it uses HTTP Post to upload the XML file from a particular client. Once the Post method is completed successfully, it sends 200 OK message to the client (using the default web server HTTP status). Now I need to include some HTTP status code in my application so that the client gets some HTTP status message (eg. 400 Bad request, 502 bad gateway) when there is an issue with the upload. How should I add the HTTP status codes in my web application? Please help me with suggestion.Thanks
HTTP Status code in Java server based web application
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You can use
HttpServletResponse#setStatus()
orHttpServletResponse#sendError()
.The methods differ in what they cause the servlet container to do, so choose the one most appropriate for your situation.
setStatus()
sendError()
The list of status code constants is available in the Field Summary of the javadoc. For the codes in your question:
HttpServletResponse.SC_BAD_REQUEST
HttpServletResponse.SC_BAD_GATEWAY