GSONの不正なURL例外

Question

jsonオブジェクトをjavaオブジェクトに変換していますが、エラーが発生しています com.google.gson.JsonSyntaxException：com.google.gson.stream.MalformedJsonException：行1の列20のパスで終了していないオブジェクト$ [0ここで.urlToImage

が私のコードである

public void onResponse(JSONObject response) { 
      JSONArray recArticles = new JSONArray(); 
      try { 
       recArticles = response.getJSONArray("articles"); 
       for (int i=0;i<recArticles.length();i++) { 
        JSONObject jsonObject = recArticles.getJSONObject(i);; 

        String author = jsonObject.getString("author"); 
        String title = jsonObject.getString("title"); 
        String description = jsonObject.getString("description"); 
        String url = jsonObject.getString("url"); 
        String urlToImage = jsonObject.getString("urlToImage"); 
        HashMap<String, String> singleArticle = new HashMap<String, String>(); 
        singleArticle.put("author", author); 
        singleArticle.put("title", title); 
        singleArticle.put("description", description); 
        singleArticle.put("url", url); 
        singleArticle.put("urlToImage", urlToImage); 
        mArticleList.add(String.valueOf(singleArticle)); 
       } 
      } catch (JSONException e) { 
       e.printStackTrace(); 
      } 
      Gson gson = new Gson(); 
      Type articleListType = new TypeToken<Collection<RecArticle>>() {}.getType(); 
      Log.d(TAG, "onResponse: " + mArticleList); 
      Log.d(TAG, "onResponse: " + String.valueOf(mArticleList)); 
      mArticles = gson.fromJson(String.valueOf(mArticleList), articleListType); 
      mArticleAdapter = new RecommenderAdapter(getContext(), mArticles); 
      mRecyclerView.setAdapter(mArticleAdapter); 

      mAviLib.hide(); 
      mRefreshLayout.setRefreshing(false); 
     } 

Answer 1

あなたのJSONレスポンスが正しいように思えます。

なぜあなたはgsonとその半分を手動で解析していますか？論理は全くありません。

そのようにそれを使用します。

Article.java

package com.example; 

import com.google.gson.annotations.Expose; 
import com.google.gson.annotations.SerializedName; 

public class Article { 

@SerializedName("author") 
@Expose 
private String author; 
@SerializedName("title") 
@Expose 
private String title; 
@SerializedName("description") 
@Expose 
private String description; 
@SerializedName("url") 
@Expose 
private String url; 
@SerializedName("urlToImage") 
@Expose 
private String urlToImage; 
@SerializedName("publishedAt") 
@Expose 
private String publishedAt; 

public String getAuthor() { 
return author; 
} 

public void setAuthor(String author) { 
this.author = author; 
} 

public String getTitle() { 
return title; 
} 

public void setTitle(String title) { 
this.title = title; 
} 

public String getDescription() { 
return description; 
} 

public void setDescription(String description) { 
this.description = description; 
} 

public String getUrl() { 
return url; 
} 

public void setUrl(String url) { 
this.url = url; 
} 

public String getUrlToImage() { 
return urlToImage; 
} 

public void setUrlToImage(String urlToImage) { 
this.urlToImage = urlToImage; 
} 

public String getPublishedAt() { 
return publishedAt; 
} 

public void setPublishedAt(String publishedAt) { 
this.publishedAt = publishedAt; 
} 

} 

ResponseModel.java

package com.example; 

import java.util.List; 
import com.google.gson.annotations.Expose; 
import com.google.gson.annotations.SerializedName; 

public class ResponseModel { 

@SerializedName("status") 
@Expose 
private String status; 
@SerializedName("source") 
@Expose 
private String source; 
@SerializedName("sortBy") 
@Expose 
private String sortBy; 
@SerializedName("articles") 
@Expose 
private List<Article> articles = null; 

public String getStatus() { 
return status; 
} 

public void setStatus(String status) { 
this.status = status; 
} 

public String getSource() { 
return source; 
} 

public void setSource(String source) { 
this.source = source; 
} 

public String getSortBy() { 
return sortBy; 
} 

public void setSortBy(String sortBy) { 
this.sortBy = sortBy; 
} 

public List<Article> getArticles() { 
return articles; 
} 

public void setArticles(List<Article> articles) { 
this.articles = articles; 
} 

} 

そして、このように解析：

public void onResponse(JSONObject response) { 

      Gson gson = new Gson(); 
      ResponseModel responseModel = gson.fromJson(response.toString(), ResponseModel.class); 
      List<Article> articles = responseModel.getArticles(); 
      mArticleAdapter = new RecommenderAdapter(getContext(), articles); 
      mRecyclerView.setAdapter(mArticleAdapter); 

      mAviLib.hide(); 
      mRefreshLayout.setRefreshing(false); 
     }