问okhttp3 - 413请求实体太大

EN

public static String post(String url, String json) throws IOException {
    OkHttpClient client = new OkHttpClient().newBuilder()
            .readTimeout(1, TimeUnit.MINUTES)
            .build();
    RequestBody body = RequestBody.create(JSON, json);
    Request request = new Request.Builder()
    .header("Authorization", authKey)
    .url(url)
    .post(body)
    .build();
    try (Response response = client.newCall(request).execute()) {
        if(response.code() != 200) {
            return "request error";
        }
        return response.body().string();
    }
}