代码示例

// 使用 OkHttp 进行调用
Map<String, Object> data = new HashMap<>();
data.put("appId", "AB00000004");
data.put("appKey", "3d58bcfbf47e05fc593ac2fe0508d213");

Gson gson = new Gson();
RequestBody body = RequestBody.create(gson.toJson(data), MediaType.parse("application/json; charset=utf-8"));
Request request = new Request.Builder()
    .url("https://ecom-api.ottpay.com/api/v1/auth/token")
    .post(body)
    .build();

final OkHttpClient httpClient = new OkHttpClient();
try (Response response = httpClient.newCall(request).execute()) {
    if (!response.isSuccessful()){
        throw new IOException("请求失败 " + response);
    }

    // 得到响应结果
    System.out.println(response.body().string());
} catch (IOException e) {
    throw new RuntimeException(e);
}