How to remove charset from Content-type when using HttpServletResponse in Struts

Question

I'm trying to send a response with "application/json" content-type. The server only accepts this content-type.

But when I try to set the content-type, it automatically adds "charset=ISO-8859-1" and this is causing problems. Is there a way to remove it?

I've added the code of how I'm setting the content-type and getting the writer in HttpServletResponse.

response.setContentType("application/json");
response.getWriter().println(json);

I need the content-type to be just "application/json".

Answer 1

try this:

response.setContentType(MediaType.APPLICATION_JSON_VALUE);
ServletOutputStream outputStream = response.getOutputStream();
outputStream.write(res.getBytes(StandardCharsets.UTF_8));
outputStream.flush();