相关疑难解决方法(0)

我没有找到任何有关如何替换弃用方法的示例。okhttp3主页上的示例很旧。这是其中之一：

public static final MediaType JSON = MediaType.get("application/json; charset=utf-8");

OkHttpClient client = new OkHttpClient();

String post(String url, String json) throws IOException {
    RequestBody body = RequestBody.create(JSON, json);
      Request request = new Request.Builder()
          .url(url)
          .post(body)
          .build();
  try (Response response = client.newCall(request).execute()) {
    return response.body().string();
  }
}

如果有人可以解决，请多多帮助。

更新：我正在使用'com.squareup.okhttp3：okhttp：4.0.1'

我想发送这样的请求正文：

我该如何发送？我将其作为课程发送吗？

"email":{
    "emailto":"foo@bar.com",
    "emailfrom":"foo@bar.com",
    "emailcc":"foo@bar.com",
    "emailbcc":"foo@bar.com",
    "emailsubject":"Subject",
    "emailtag":"Information",
    "emailtextbody":"---",
    "attachments":[]
}

val formBody = FormBody.Builder()
    .add("email", "Your message")
    .build()

val request = Request.Builder()
    .url(url)
    .post(formBody)
    .addHeader("_Token","")
    .addHeader("Content-Type","application/json")
    .build()