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[HttpGet]
public async Task<IActionResult> SseExample()
{// 请求头Response.Headers.Add("Content-Type", "text/event-stream");Response.Headers.Add("Cache-Control", "no-cache");Response.Headers.Add("Connection", "keep-alive");// 假设不断得到新数据for (int i = 0; i < 10; i++){// 每个数据参照 SSE 返回数据格式进行组装var content = "event: message\n"+ "data: {\"color\":\"66ccff\"}\n\n";// 立刻写入响应await Response.WriteAsync(content);await Response.Body.FlushAsync();}// 结束return new EmptyResult();
}