Question

我是一名新的Java学习者。我正在尝试使用Intellij IDEA将Json文件解析为Java。但是，它没有显示正确的结果。

我总共使用了三个文件。 Main.java，parse.java和sample.json文件。

//Main.java
import com.google.gson.Gson;

import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.math.BigDecimal;
import java.util.*;

public class Main {
    public static void main(String[] args) throws IOException{

        Gson gson = new Gson();

        parse.basicInfo info = gson.fromJson(new FileReader("C:\\Users\\" +
                "Danniel\\Desktop\\UIUC\\gsonexample\\src\\test\\resources\\" +
                "sample.json"), parse.basicInfo.class);



        System.out.println(info.articles.get(0));

    }
}

。

//prase.java
import java.util.*;


public class parse {



    public class basicInfo{
        String status;
        String source;
        String sortBy;
        List<Article> articles = new ArrayList<Article>();
    }

    public class Article{
        private String author;
        private String title;
        private String description;
        private String url;
        private String urlToImage;
        private String publisedAt;
    }

}

。

//sample.json
{
  "status":"ok",
  "source":"associated-press",
  "sortBy":"top",
  "articles":[
    {
      "author":"ALAN FRAM and DARLENE SUPERVILLE",
      "title":"House vote condemning Trump's tweets draws some GOP support",
      "description":"WASHINGTON (AP) — In a remarkable political repudiation, the Democratic-led U.S. House voted to condemn President Donald Trump's \"racist comments\" against four congresswomen of color, despite...",
      "url":"https://apnews.com/36f5e67a145c4f0eb7661f2ca453b0a9",
      "urlToImage":"https://storage.googleapis.com/afs-prod/media/00565d4c42fc43809d74a093acbd4108/3000.jpeg",
      "publishedAt":"2019-07-17T13:36:08Z"
    },
    {
      "author":"SCOTT BAUER",
      "title":"Trump voters cringe and shrug at tweets while Democrats rage",
      "description":"HELENVILLE, Wis. (AP) — Bill Brasch greeted President Donald Trump's latest tweet controversy with a shrug.He doesn't believe Trump was being racist for telling four congresswomen, all...",
      "url":"https://apnews.com/dc5b20480ec14d1ea79e3c38ce78b1ff",
      "urlToImage":"https://storage.googleapis.com/afs-prod/media/36c40d48417f4c3f8df11da735bad4b0/3000.jpeg",
      "publishedAt":"2019-07-17T04:39:01Z"
    }
  ]
}

通过表演

info.articles.get(0)

在Main.java中，我以为可以得到作者，标题，描述等的列表。但是，我得到了一些奇怪的输出，例如

parse$Article@5d3411d

当我执行“ info.status”或“ source”时，它对我来说很好用。谁能帮我吗？

使用Gson解析错误的输出

0 个答案: