小编May*_*ore的帖子

我是 OpenTelemetry 这个词的新手。我已分别为我的服务创建了跨度，但是当我尝试使用上下文传播组合两个不同服务的跨度时，我无法成功完成此操作。我使用了以下代码：

 // at client side:
  public static void sendContext(String resource) {

TextMapSetter<HttpURLConnection> setter =
    new TextMapSetter<HttpURLConnection>() {
      @Override
      public void set(HttpURLConnection carrier, String key, String value) {
        carrier.setRequestProperty(key, value);
      }
    };
HttpURLConnection transportLayer = null;
String urlString = "http://127.0.0.1:8080" + resource;
try {
  URL url = new URL(urlString);
  transportLayer = (HttpURLConnection) url.openConnection();
} catch (MalformedURLException ex) {
  System.out.println(ex.getMessage());
} catch (IOException e) {
  System.out.println(e.getMessage());
}
GlobalOpenTelemetry.getPropagators()
    .getTextMapPropagator()
    .inject(Context.current(), transportLayer, setter);
}



// at server side:
public static Context …