javafx 接口请求

要进行接口请求，你可以使用JavaFX中的HttpURLConnection类或OkHttp库。以下是使用HttpURLConnection类进行接口请求的示例代码：

URL url = new URL("http://example.com/api/endpoint");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setRequestProperty("Content-Type", "application/json");

int responseCode = connection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
    BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    String inputLine;
    StringBuilder response = new StringBuilder();

    while ((inputLine = in.readLine()) != null) {
        response.append(inputLine);
    }

    in.close();
    System.out.println(response.toString());
} else {
    System.out.println("Error: " + responseCode);
}

这里是一个使用OkHttp库的示例代码：

OkHttpClient client = new OkHttpClient();

String url = "http://example.com/api/endpoint";
Request request = new Request.Builder()
    .url(url)
    .build();

Response response = client.newCall(request).execute();
if (response.isSuccessful()) {
    String responseBody = response.body().string();
    System.out.println(responseBody);
} else {
    System.out.println("Error: " + response.code());
}

无论使用哪种方法，都需要将请求方法、请求头和请求体设置为合适的值。另外，由于网络请求是一个耗时的操作，建议在JavaFX应用程序中使用多线程来执行网络请求，以免阻塞用户界面。