活体检测API
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import okhttp3.*;
import java.io.File;

public class LiveCheck {
    public static void main(String[] args) {
        // 接口地址
        String url = "https://api.253.com/open/i/htjc/lifecheck";
        
        // 构建表单
        RequestBody body = new MultipartBody.Builder()
                .setType(MultipartBody.FORM)
                .addFormDataPart("appId", "你的appId")
                .addFormDataPart("appKey", "你的appKey")
                .addFormDataPart("motions", "BLINK")
                // .addFormDataPart("url", "https://xxx/xxx.mp4") // 网络地址
                .addFormDataPart("file", "test.mp4", // 本地文件
                        RequestBody.create(MediaType.parse("video/mp4"), new File("test.mp4")))
                .build();

        // 发送请求
        Request request = new Request.Builder().url(url).post(body).build();
        try (Response response = new OkHttpClient().newCall(request).execute()) {
            System.out.println(response.body().string());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}