OKHTTP解析json資料

先上代碼例子：

public class OKHTTPdemo {
    public static void main(String[] args) throws IOException {
    //聯網擷取資料，傳回值為String型的
        OKHTTPdemo example = new OKHTTPdemo();
        ObjectMapper mapper = new ObjectMapper();
        String response = example.run("https://api.douban.com/v2/movie/subject/1764796");
        //json資料的解析
        JsonNode jsonNode = mapper.readTree(response);
        String  max = jsonNode.path("rating").path("average").asText();
        System.out.println(max);
      }
    private  String run(String url) throws IOException {
        OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
            .url(url)
            .build();
        Response response = client.newCall(request).execute();
        return response.body().string();
      } 
    }
           

注意的是：需要build path添加開源架構OKHTTP.jar和okio.jar