import org.eclipse.jetty.util.ByteArrayISO8859Writer; //导入依赖的package包/类
@Override
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException {
  baseRequest.setHandled(true);
  String method = request.getMethod();
  if (!method.equals(HttpMethods.GET) && !method.equals(HttpMethods.POST) && !method.equals(HttpMethods.HEAD)) {
    return;
  }
  response.setContentType(MimeTypes.TEXT_PLAIN_8859_1);
  response.setHeader(HttpHeaders.CACHE_CONTROL, "must-revalidate,no-cache,no-store");
  ByteArrayISO8859Writer writer = new ByteArrayISO8859Writer(4096);
  handleErrorPage(request, writer, baseRequest.getResponse().getStatus(), baseRequest.getResponse().getReason());
  writer.flush();
  response.setContentLength(writer.size());
  writer.writeTo(response.getOutputStream());
  writer.destroy();
}
 

import org.eclipse.jetty.util.ByteArrayISO8859Writer; //导入依赖的package包/类
@Override
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException {
    AbstractHttpConnection connection = AbstractHttpConnection.getCurrentConnection();
    connection.getRequest().setHandled(true);
    response.setContentType(MimeTypes.TEXT_PLAIN_8859_1);
    ByteArrayISO8859Writer writer= new ByteArrayISO8859Writer(4096);
    writer.write(request.getAttribute(Dispatcher.ERROR_STATUS_CODE) + " " +
                 request.getAttribute(Dispatcher.ERROR_MESSAGE) + " " +
                 request.getAttribute(Dispatcher.ERROR_REQUEST_URI));
    writer.flush();
    response.setContentLength(writer.size());
    writer.writeTo(response.getOutputStream());
    writer.destroy();
}
 

import org.eclipse.jetty.util.ByteArrayISO8859Writer; //导入依赖的package包/类
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
  OutputStream out = response.getOutputStream();
  ByteArrayISO8859Writer writer = new ByteArrayISO8859Writer();
  writer.write("hello world");
  writer.flush();
  response.setContentLength(writer.size());
  writer.writeTo(out);
  out.flush();

  baseRequest.setHandled(true);

}
 

import org.eclipse.jetty.util.ByteArrayISO8859Writer; //导入依赖的package包/类
@Override
public void handle(
		final String target,
		final Request baseRequest,
		final HttpServletRequest request,
		final HttpServletResponse response) throws IOException {
	// note: handle needs to be overridden instead of something more specific like handleErrorPage
	// because we need to set the content type to application/json and this is the only way to do that.
	// the rest of the implementation comes from the reflected base class.

	final String method = request.getMethod();
	if (!HttpMethod.GET.is(method) && !HttpMethod.POST.is(method) && !HttpMethod.HEAD.is(method)) {
		baseRequest.setHandled(true);
		return;
	}

	baseRequest.setHandled(true);
	response.setContentType(MimeTypes.Type.APPLICATION_JSON.asString());
	if (null != this.getCacheControl()) {
		response.setHeader(HttpHeader.CACHE_CONTROL.asString(), this.getCacheControl());
	}

	try (final ByteArrayISO8859Writer writer = new ByteArrayISO8859Writer(4096)) {
		final String reason = (response instanceof Response) ? ((Response)response).getReason() : null;
		this.handleErrorPage(request, writer, response.getStatus(), reason);
		writer.flush();
		response.setContentLength(writer.size());
		writer.writeTo(response.getOutputStream());
	}
}