如何将body传递给OKHttp消息？

OkHttpClient client = new OkHttpClient();

MediaType JSON = MediaType.parse("application/json; charset=utf-8");
String jsonBody = "{\"key\":\"value\"}";
RequestBody requestBody = RequestBody.create(JSON, jsonBody);

RequestBody requestBody = new FormBody.Builder()
    .add("key1", "value1")
    .add("key2", "value2")
    .build();

Request request = new Request.Builder()
    .url("http://example.com/api")
    .post(requestBody) // 使用POST方法发送请求体数据
    .build();

try {
    Response response = client.newCall(request).execute();
    // 处理响应
} catch (IOException e) {
    e.printStackTrace();
}