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Accepted
Anton Buketov
Asked:2022-06-19 17:35:36 +0000 UTC2022-06-19 17:35:36 +0000 UTC

如何在Java中将接收到的字符串转换为hasmap或arrayList？

  • 772

有GET一个请求，在所有的阴谋之后，我得到了所有信息的一条大线。我怎样才能将它转换成更结构化的东西，比如hasmapor arrayList？

package ghibli;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;

public class Main {

    public static void main(String[] args) {

        try {
            String url = "https://ghibliapi.herokuapp.com/films";
            URL obj = new URL(url);

            HttpURLConnection connection = (HttpURLConnection) obj.openConnection();
            connection.setRequestMethod("GET");

            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String inputLine;

            StringBuffer response = new StringBuffer();
            while ((inputLine = in.readLine()) != null) {
                response.append(inputLine);
//                response.append("\n");
            }

            in.close();

//            System.out.println(response.toString().replaceAll("^.|.$", ""));
            
            
            String stringValuses = response.toString().replaceAll("^.|.$", "");
            System.out.println(stringValuses);


            Object objJson = JSONValue.parse(stringValuses);
//            System.out.println(stringValuses);

            JSONObject jsonObject = (JSONObject) objJson;
            System.out.println(jsonObject);

            String name = (String) jsonObject.get("title");
//            System.out.println(name);

//            Ghibli ghibli = new Ghibli();
//            ghibli.startApp();

        } catch (IOException ex) {
            Logger.getLogger(Ghibli.class.getName()).log(Level.SEVERE, null, ex);
        }

//     ghibli.getData("https://ghibliapi.herokuapp.com/films");
    }

}
java

1 个回答

  1. Best Answer

    我们使用 okhttp、gson、lombok，这将简化一切。我们得到这样的东西：

    public class Main {
    
    private final static OkHttpClient HTTP_CLIENT = new OkHttpClient();
    private final static Gson GSON = new Gson();

    public static void main(String[] args) throws Exception {
        
        Request request = new Request.Builder()
                .url("https://ghibliapi.herokuapp.com/films")
                .get()
                .build();
        
        Response result = HTTP_CLIENT.newCall(request).execute();
        List<Model> models = GSON.fromJson(result.body().charStream(), List.class);
        System.out.println(models);
    }

}

@Data
class Model{
    public String id;
    public String title;
    public String original_title;
    public String original_title_romanised;
    public String description;
    public String director;
    public String producer;
    public String release_date;
    public String running_time;
    public String rt_score;
    public List<String> people;
    public List<String> species;
    public List<String> locations;
    public List<String> vehicles;
    public String url;
}
    • 1

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