（OkHttp3.x，FormEncodingBuilder已被FormBody取代）

（OkHttp3.x，FormEncodingBuilder已被FormBody取代）

OkHttpClient client = new OkHttpClient();

FormBody body = new FormBody.Builder()

     .add("param1", "value1")

     .add("param2", "value2")

     .build();

Request request = new Request.Builder()

     .url("http://my.wonderfull.url/to/post")

     .post(body)

     .build();

Response response = client.newCall(request).execute();