HttpUploadServerHandler.java 文件源码

private void writeResponse(final Channel channel, final HttpResponseStatus statusCode) {
    // Convert the response content to a ChannelBuffer.
    final ByteBuf buf = copiedBuffer(responseContent.toString(), CharsetUtil.UTF_8);
    responseContent.setLength(0);
    // Decide whether to close the connection or not.
    final boolean close = HttpHeaders.Values.CLOSE.equalsIgnoreCase(request.headers().get(CONNECTION)) ||
            request.getProtocolVersion().equals(HttpVersion.HTTP_1_0) && !HttpHeaders.Values.KEEP_ALIVE.equalsIgnoreCase(request.headers().get(CONNECTION));
    // Build the response object.
    final FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, statusCode, buf);
    response.headers().set(CONTENT_TYPE, "text/plain; charset=UTF-8");
    if (!close) {
        // There's no need to add 'Content-Length' header if this is the last response.
        response.headers().set(CONTENT_LENGTH, buf.readableBytes());
    }
    // Write the response.
    final ChannelFuture future = channel.writeAndFlush(response);
    // Close the connection after the write operation is done if necessary.
    if (close) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}