Question

我收到的回复包含两种类型的对象：Pagination和ArtistSearch列表。我用于反序列化的模型是：

public class ArtistSearchResults {
List<ArtistSearch> artistSearchList;
Pagination pagination;

// getters and setters...

}

我在这里反序列化：

            Gson gson = new Gson();
            ArtistSearchResults results = gson.fromJson(response.toString(), ArtistSearchResults.class);
            List<ArtistSearch> artistSearchList = results.getArtistSearchList();
            Pagination pagination = results.getPagination();

            Log.i(TAG, "onSuccess Pagination size == " + pagination.getItems() );
            Log.i(TAG, "onSuccess RESULTS size == " + artistSearchList.get(0).getTitle() );

虽然我得到了Pagination对象的响应，但我总是为artistSearchList获取null。

我没有收到任何错误消息，所以我不确定错误在哪里。我得到的结果看起来像这样：

07-10 06:11:06.726 6954-6954/jb.ti.discogsball I/SEARCHHANDLER: onSuccess Search-Artist response = {"pagination":{"per_page":5,"pages":3,"page":1,"urls":{"last":"https:\/\/api.discogs.com\/database\/search?q=savage+republic&per_page=5&type=artist&page=3","next":"https:\/\/api.discogs.com\/database\/search?q=savage+republic&per_page=5&type=artist&page=2"},"items":14},"results": [{"thumb":"https:\/\/api-img.discogs.com\/RAHE1vqHWb1xwPUv5y2Q1v5g4Yo=\/150x150\/smart\/filters:strip_icc():format(jpeg):mode_rgb():quality(40)\/discogs-images\/A-121133-1262786660.jpeg.jpg","title":"Savage Republic","uri":"\/artist\/121133-Savage-Republic","resource_url":"https:\/\/api.discogs.com\/artists\/121133","type":"artist","id":121133},{"thumb":"https:\/\/api-img.discogs.com\/GYkPyAYZEcFM0bzyjnBple7P3Yw=\/150x150\/smart\/filters:strip_icc():format(jpeg):mode_rgb():quality(40)\/discogs-images\/A-307086-1160815350.jpeg.jpg","title":"Bruce Licher","uri":"\/artist\/307086-Bruce-Licher","resource_url":"https:\/\/api.discogs.com\/artists\/307086","type":"artist","id":307086},{"thumb":"https:\/\/api-img.discogs.com\/XHvbh885CZ2uTcq7WT3ph0n0gMs=\/150x150\/smart\/filters:strip_icc():format(jpeg):mode_rgb():quality(40)\/discogs-images\/A-71224-1334785233.jpeg.jpg","title":"Medicine (2)","uri":"\/artist\/71224-Medicine-2","resource_url":"https:\/\/api.discogs.com\/artists\/71224","type":"artist","id":71224},{"thumb":"","title":"Val Haller","uri":"\/artist\/492425-Val-Haller","resource_url":"https:\/\/api.discogs.com\/artists\/492425","type":"artist","id":492425},{"thumb":"","title":"Ramona Clarke","uri":"\/artist\/1957827-Ramona-Clarke","resource_url":"https:\/\/api.discogs.com\/artists\/1957827","type":"artist","id":1957827}]}
07-10 06:11:06.732 6954-6954/jb.ti.discogsball I/SEARCHHANDLER: onSuccess Pagination size == 14

正如您所见，我得到了Pagination对象的值，但我得到了artistSearchList的NPE。

我用于ArtistSearch的模型是：

public class ArtistSearch {
int id;
String title;
String type;
String resource_url;
String uri;
String thumb;

// getters and setters ...

这是解析为null的响应中的文本：

＆＃34;结果＆＃34 ;: [{＆＃34;拇指＆＃34;：＆＃34; HTTPS：//api-img.discogs.com/RAHE1vqHWb1xwPUv5y2Q1v5g4Yo=/150x150/smart/filters：strip_icc（）：格式（JPEG）：mode_rgb（）：质量（40）/discogs-images/A-121133-1262786660.jpeg.jpg"，＆＃34;标题＆＃34;：＆＃34;野蛮共和国＆＃34;＆＃34; URI＆＃34;：＆＃34; /艺术家/ 121133-野蛮-共和国＆＃34;＆＃34; resource_url＆＃34;：＆＃34; HTTPS：//api.discogs的.com /艺术家/ 121133＆＃34;＆＃34;类型＆＃34;：＆＃34;艺术家＆＃34;＆＃34; ID＆＃34;：121133}，{＆＃34;拇指＆＃34 ;: ＆＃34; HTTPS：//api-img.discogs.com/GYkPyAYZEcFM0bzyjnBple7P3Yw=/150x150/smart/filters：strip_icc（）：格式（JPEG）：mode_rgb（）：质量（40）/ discogs图像/ A-307086 -1160815350.jpeg.jpg＆＃34;＆＃34;标题＆＃34;：＆＃34;布鲁斯 Licher＆＃34;＆＃34; URI＆＃34;：＆＃34; /艺术家/ 307086-布鲁斯Licher＆＃34;＆＃34; resource_url＆＃34;：＆＃34; HTTPS：//api.discogs的.com /艺术家/ 307086＆＃34;＆＃34;类型＆＃34;：＆＃34;艺术家＆＃34;＆＃34; ID＆＃34;：307086}，{＆＃34;拇指＆＃34 ;: ＆＃34; HTTPS：//api-img.discogs.com/XHvbh885CZ2uTcq7WT3ph0n0gMs=/150x150/smart/filters：strip_icc（）：格式（JPEG）：mode_rgb（）：质量（40）/ discogs图像/ A-71224 -1334785233.jpeg.jpg＆＃34;＆＃34;标题＆＃34;：＆＃34;医药（2）＆＃34;＆＃34; URI＆＃34;：＆＃34; /艺术家/ 71224-医药-2＆＃34;＆＃34; resource_url＆＃34;：＆＃34; https：//开头api.discogs.com/artists/71224","type":"artist","id":71224},{"thumb&# 34;：＆＃34;＆＃34;＆＃34;标题＆＃34;：＆＃34;缬氨酸哈勒＆＃34;＆＃34; URI＆＃34;：＆＃34; /艺术家/ 492425-VAL-哈勒＆＃34;＆＃34; resource_url＆＃34;：＆＃34; HTTPS：//api.discogs的.com /艺术家/ 492425＆＃34;＆＃34;类型＆＃34;：＆＃34;艺术家＆＃34;＆＃34; ID＆＃34;：492425}，{＆＃34;拇指＆＃34 ;: ＆＃34;＆＃34;＆＃34;标题＆＃34;：＆＃34;拉马纳克拉克＆＃34;＆＃34; URI＆＃34;：＆＃34; /艺术家/ 1957827-拉马纳 - 克拉克＆＃34;＆＃34; resource_url＆＃34;：＆＃34; HTTPS：//api.discogs的.com /艺术家/ 1957827＆＃34;＆＃34;类型＆＃34;：＆＃34;艺术家＆＃34;＆＃34; ID＆＃34;：1957827}]

Answer 1

请您在ArtistSearchResults.java中替换以下变量声明：

private List<ArtistSearch> artistSearchList;

由此：

@SerializedName("results")
private List<ArtistSearch> artistSearchList;

并查看结果？

对于一种类型

1 个答案: