实施后改造 2（在 Android 中），我的 JSON 元素在哪里？
Retrofit 2 (in Android) after implementation, Where are my JSON elements?
我正在实施改造 2 接口来解析 JSON 元素（视频 url、缩略图、标题等）
JSONschema2Pojo 产生了 4 个 pojo classes，但是 main/root 一个是 VideoInfo（没关系实现 Parcelable，我还没有用它做任何事情）
缺少 @SerializedName("....") 会影响什么，知道这是由 jsonschema2pojo 自动生成的吗？更新：生成了新的 pojo classes，这次带有 Gson 注释 (@SerializedName("") and @Expose) 但仍然有同样的问题。
import android.os.Parcel;
import android.os.Parcelable;
import java.util.ArrayList;
import java.util.List;
public class VideoInfo implements Parcelable {
private List<Item> items = new ArrayList<Item>();
private int pageNumber;
private int pageSize;
private int totalCount;
/**
* No args constructor for use in serialization
*
*/
public VideoInfo() {
}
/**
*
* @param totalCount
* @param items
* @param pageSize
* @param pageNumber
*/
public VideoInfo(List<Item> items, int pageNumber, int pageSize, int totalCount) {
this.items = items;
this.pageNumber = pageNumber;
this.pageSize = pageSize;
this.totalCount = totalCount;
}
/**
*
* @return
* The items
*/
public List<Item> getItems() {
return items;
}
/**
*
* @param items
* The items
*/
public void setItems(List<Item> items) {
this.items = items;
}
/**
*
* @return
* The pageNumber
*/
public int getPageNumber() {
return pageNumber;
}
/**
*
* @param pageNumber
* The page_number
*/
public void setPageNumber(int pageNumber) {
this.pageNumber = pageNumber;
}
/**
*
* @return
* The pageSize
*/
public int getPageSize() {
return pageSize;
}
/**
*
* @param pageSize
* The page_size
*/
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
/**
*
* @return
* The totalCount
*/
public int getTotalCount() {
return totalCount;
}
/**
*
* @param totalCount
* The total_count
*/
public void setTotalCount(int totalCount) {
this.totalCount = totalCount;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
}
}
UPDATE：在上面的 class VideoInfo 中你可以看到 private List<Item> items = new ArrayList<Item>(); 这是因为还有另一个 pojo class 有一个列表时间，如下：
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
import java.util.ArrayList;
import java.util.List;
public class Item {
@SerializedName("id")
@Expose
private int id;
@SerializedName("name")
@Expose
private String name;
@SerializedName("shortDescription")
@Expose
private String shortDescription;
@SerializedName("creationDate")
@Expose
private String creationDate;
@SerializedName("publishedDate")
@Expose
private String publishedDate;
@SerializedName("linkURL")
@Expose
private String linkURL;
@SerializedName("linkText")
@Expose
private String linkText;
@SerializedName("tags")
@Expose
private List<String> tags = new ArrayList<String>();
@SerializedName("videoStillURL")
@Expose
private String videoStillURL;
@SerializedName("thumbnailURL")
@Expose
private String thumbnailURL;
@SerializedName("length")
@Expose
private int length;
@SerializedName("renditions")
@Expose
private List<Rendition> renditions = new ArrayList<Rendition>();
@SerializedName("IOSRenditions")
@Expose
private List<IOSRendition> IOSRenditions = new ArrayList<IOSRendition>();
@SerializedName("HDSRenditions")
@Expose
private List<Object> HDSRenditions = new ArrayList<Object>();
/**
* No args constructor for use in serialization
*
*/
public Item() {
}
/**
*
* @param tags
* @param videoStillURL
* @param HDSRenditions
* @param id
* @param creationDate
* @param IOSRenditions
* @param linkText
* @param shortDescription
* @param renditions
* @param name
* @param linkURL
* @param length
* @param publishedDate
* @param thumbnailURL
*/
public Item(int id, String name, String shortDescription, String creationDate, String publishedDate, String linkURL, String linkText, List<String> tags, String videoStillURL, String thumbnailURL, int length, List<Rendition> renditions, List<IOSRendition> IOSRenditions, List<Object> HDSRenditions) {
this.id = id;
this.name = name;
this.shortDescription = shortDescription;
this.creationDate = creationDate;
this.publishedDate = publishedDate;
this.linkURL = linkURL;
this.linkText = linkText;
this.tags = tags;
this.videoStillURL = videoStillURL;
this.thumbnailURL = thumbnailURL;
this.length = length;
this.renditions = renditions;
this.IOSRenditions = IOSRenditions;
this.HDSRenditions = HDSRenditions;
}
/**
*
* @return
* The id
*/
public int getId() {
return id;
}
/**
*
* @param id
* The id
*/
public void setId(int id) {
this.id = id;
}
/**
*
* @return
* The name
*/
public String getName() {
return name;
}
/**
*
* @param name
* The name
*/
public void setName(String name) {
this.name = name;
}
/**
*
* @return
* The shortDescription
*/
public String getShortDescription() {
return shortDescription;
}
/**
*
* @param shortDescription
* The shortDescription
*/
public void setShortDescription(String shortDescription) {
this.shortDescription = shortDescription;
}
/**
*
* @return
* The creationDate
*/
public String getCreationDate() {
return creationDate;
}
/**
*
* @param creationDate
* The creationDate
*/
public void setCreationDate(String creationDate) {
this.creationDate = creationDate;
}
/**
*
* @return
* The publishedDate
*/
public String getPublishedDate() {
return publishedDate;
}
/**
*
* @param publishedDate
* The publishedDate
*/
public void setPublishedDate(String publishedDate) {
this.publishedDate = publishedDate;
}
/**
*
* @return
* The linkURL
*/
public String getLinkURL() {
return linkURL;
}
/**
*
* @param linkURL
* The linkURL
*/
public void setLinkURL(String linkURL) {
this.linkURL = linkURL;
}
/**
*
* @return
* The linkText
*/
public String getLinkText() {
return linkText;
}
/**
*
* @param linkText
* The linkText
*/
public void setLinkText(String linkText) {
this.linkText = linkText;
}
/**
*
* @return
* The tags
*/
public List<String> getTags() {
return tags;
}
/**
*
* @param tags
* The tags
*/
public void setTags(List<String> tags) {
this.tags = tags;
}
/**
*
* @return
* The videoStillURL
*/
public String getVideoStillURL() {
return videoStillURL;
}
/**
*
* @param videoStillURL
* The videoStillURL
*/
public void setVideoStillURL(String videoStillURL) {
this.videoStillURL = videoStillURL;
}
/**
*
* @return
* The thumbnailURL
*/
public String getThumbnailURL() {
return thumbnailURL;
}
/**
*
* @param thumbnailURL
* The thumbnailURL
*/
public void setThumbnailURL(String thumbnailURL) {
this.thumbnailURL = thumbnailURL;
}
/**
*
* @return
* The length
*/
public int getLength() {
return length;
}
/**
*
* @param length
* The length
*/
public void setLength(int length) {
this.length = length;
}
/**
*
* @return
* The renditions
*/
public List<Rendition> getRenditions() {
return renditions;
}
/**
*
* @param renditions
* The renditions
*/
public void setRenditions(List<Rendition> renditions) {
this.renditions = renditions;
}
/**
*
* @return
* The IOSRenditions
*/
public List<IOSRendition> getIOSRenditions() {
return IOSRenditions;
}
/**
*
* @param IOSRenditions
* The IOSRenditions
*/
public void setIOSRenditions(List<IOSRendition> IOSRenditions) {
this.IOSRenditions = IOSRenditions;
}
/**
*
* @return
* The HDSRenditions
*/
public List<Object> getHDSRenditions() {
return HDSRenditions;
}
/**
*
* @param HDSRenditions
* The HDSRenditions
*/
public void setHDSRenditions(List<Object> HDSRenditions) {
this.HDSRenditions = HDSRenditions;
}
}
UPDATE: 所以上面你可以看到我们已经定义了 private List<Rendition> renditions = new ArrayList<Rendition>(); 在另一个 pojo classes Rendition.class:
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
public class Rendition {
@SerializedName("audioOnly")
@Expose
private boolean audioOnly;
@SerializedName("controllerType")
@Expose
private String controllerType;
@SerializedName("displayName")
@Expose
private String displayName;
@SerializedName("encodingRate")
@Expose
private int encodingRate;
@SerializedName("frameHeight")
@Expose
private int frameHeight;
@SerializedName("frameWidth")
@Expose
private int frameWidth;
@SerializedName("id")
@Expose
private int id;
@SerializedName("referenceId")
@Expose
private Object referenceId;
@SerializedName("remoteStreamName")
@Expose
private Object remoteStreamName;
@SerializedName("remoteUrl")
@Expose
private Object remoteUrl;
@SerializedName("size")
@Expose
private int size;
@SerializedName("uploadTimestampMillis")
@Expose
private int uploadTimestampMillis;
@SerializedName("url")
@Expose
private String url;
@SerializedName("videoCodec")
@Expose
private String videoCodec;
@SerializedName("videoContainer")
@Expose
private String videoContainer;
@SerializedName("videoDuration")
@Expose
private int videoDuration;
/**
* No args constructor for use in serialization
*
*/
public Rendition() {
}
/**
*
* @param controllerType
* @param encodingRate
* @param referenceId
* @param url
* @param size
* @param id
* @param uploadTimestampMillis
* @param frameWidth
* @param remoteUrl
* @param videoContainer
* @param remoteStreamName
* @param displayName
* @param videoCodec
* @param videoDuration
* @param audioOnly
* @param frameHeight
*/
public Rendition(boolean audioOnly, String controllerType, String displayName, int encodingRate, int frameHeight, int frameWidth, int id, Object referenceId, Object remoteStreamName, Object remoteUrl, int size, int uploadTimestampMillis, String url, String videoCodec, String videoContainer, int videoDuration) {
this.audioOnly = audioOnly;
this.controllerType = controllerType;
this.displayName = displayName;
this.encodingRate = encodingRate;
this.frameHeight = frameHeight;
this.frameWidth = frameWidth;
this.id = id;
this.referenceId = referenceId;
this.remoteStreamName = remoteStreamName;
this.remoteUrl = remoteUrl;
this.size = size;
this.uploadTimestampMillis = uploadTimestampMillis;
this.url = url;
this.videoCodec = videoCodec;
this.videoContainer = videoContainer;
this.videoDuration = videoDuration;
}
/**
*
* @return
* The audioOnly
*/
public boolean isAudioOnly() {
return audioOnly;
}
/**
*
* @param audioOnly
* The audioOnly
*/
public void setAudioOnly(boolean audioOnly) {
this.audioOnly = audioOnly;
}
/**
*
* @return
* The controllerType
*/
public String getControllerType() {
return controllerType;
}
/**
*
* @param controllerType
* The controllerType
*/
public void setControllerType(String controllerType) {
this.controllerType = controllerType;
}
/**
*
* @return
* The displayName
*/
public String getDisplayName() {
return displayName;
}
/**
*
* @param displayName
* The displayName
*/
public void setDisplayName(String displayName) {
this.displayName = displayName;
}
/**
*
* @return
* The encodingRate
*/
public int getEncodingRate() {
return encodingRate;
}
/**
*
* @param encodingRate
* The encodingRate
*/
public void setEncodingRate(int encodingRate) {
this.encodingRate = encodingRate;
}
/**
*
* @return
* The frameHeight
*/
public int getFrameHeight() {
return frameHeight;
}
/**
*
* @param frameHeight
* The frameHeight
*/
public void setFrameHeight(int frameHeight) {
this.frameHeight = frameHeight;
}
/**
*
* @return
* The frameWidth
*/
public int getFrameWidth() {
return frameWidth;
}
/**
*
* @param frameWidth
* The frameWidth
*/
public void setFrameWidth(int frameWidth) {
this.frameWidth = frameWidth;
}
/**
*
* @return
* The id
*/
public int getId() {
return id;
}
/**
*
* @param id
* The id
*/
public void setId(int id) {
this.id = id;
}
/**
*
* @return
* The referenceId
*/
public Object getReferenceId() {
return referenceId;
}
/**
*
* @param referenceId
* The referenceId
*/
public void setReferenceId(Object referenceId) {
this.referenceId = referenceId;
}
/**
*
* @return
* The remoteStreamName
*/
public Object getRemoteStreamName() {
return remoteStreamName;
}
/**
*
* @param remoteStreamName
* The remoteStreamName
*/
public void setRemoteStreamName(Object remoteStreamName) {
this.remoteStreamName = remoteStreamName;
}
/**
*
* @return
* The remoteUrl
*/
public Object getRemoteUrl() {
return remoteUrl;
}
/**
*
* @param remoteUrl
* The remoteUrl
*/
public void setRemoteUrl(Object remoteUrl) {
this.remoteUrl = remoteUrl;
}
/**
*
* @return
* The size
*/
public int getSize() {
return size;
}
/**
*
* @param size
* The size
*/
public void setSize(int size) {
this.size = size;
}
/**
*
* @return
* The uploadTimestampMillis
*/
public int getUploadTimestampMillis() {
return uploadTimestampMillis;
}
/**
*
* @param uploadTimestampMillis
* The uploadTimestampMillis
*/
public void setUploadTimestampMillis(int uploadTimestampMillis) {
this.uploadTimestampMillis = uploadTimestampMillis;
}
/**
*
* @return
* The url
*/
public String getUrl() {
return url;
}
/**
*
* @param url
* The url
*/
public void setUrl(String url) {
this.url = url;
}
/**
*
* @return
* The videoCodec
*/
public String getVideoCodec() {
return videoCodec;
}
/**
*
* @param videoCodec
* The videoCodec
*/
public void setVideoCodec(String videoCodec) {
this.videoCodec = videoCodec;
}
/**
*
* @return
* The videoContainer
*/
public String getVideoContainer() {
return videoContainer;
}
/**
*
* @param videoContainer
* The videoContainer
*/
public void setVideoContainer(String videoContainer) {
this.videoContainer = videoContainer;
}
/**
*
* @return
* The videoDuration
*/
public int getVideoDuration() {
return videoDuration;
}
/**
*
* @param videoDuration
* The videoDuration
*/
public void setVideoDuration(int videoDuration) {
this.videoDuration = videoDuration;
}
}
我创建了一个改装界面VideoInterface.class
进口retrofit2.Call；
导入 retrofit2.http.GET;
/**
* retrofit 2 interface
*/
public interface VideoInterface {
String apiURL = ".....";
@GET(apiURL)
public Call<VideosResponse> listVideos();
}
我创建了一个response/parseclassVideosResponse.java
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import java.util.ArrayList;
import java.util.List;
/**
*/
public class VideosResponse {
//initalizing the collection
List<VideoInfo> videos;
public VideosResponse() {
videos = new ArrayList<VideoInfo>();
}
//parsing the response
public static VideosResponse parseJSON(String response) {
Gson gson = new GsonBuilder().create();
VideosResponse videosResponse = gson.fromJson(response, VideosResponse.class);
return videosResponse;
}
}
UPDATED ：最后我调用了 API ，但无法获取单个元素
我知道我应该能够做一些像 response.body().getItem().getID().getRendition().getUrl() 这样的事情，但是我在自动完成中看不到它，如果我写它我会出错。
这段代码在我的 onResume() 方法中，我在下面注释掉 public static 的原因是因为它在 onResume()
中是不允许的
// Creating a simple REST adapter which points the API
// public static
final String BASE_URL = "http://api......";
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
// Creating an instance of our API interface.
VideoInterface service = retrofit.create(VideoInterface.class);
Call<VideosResponse> call = service.listVideos();
call.enqueue(new Callback<VideosResponse>() {
@Override
public void onResponse(Call<VideosResponse> call, Response<VideosResponse> response) {
VideosResponse videoResponse = response.body();
}
@Override
public void onFailure(Call<VideosResponse> call, Throwable t) {
}});
到最后一步似乎一切正常（没有错误），以下日志给我：
Log.d("Videos ", response.message()); //OK
Log.d("Videos ", String.valueOf(response.isSuccess())); //TRUE
Log.d("Videos ", String.valueOf(response.code())); //200
但我仍然无法获得我需要的字符串。当我打印响应日志时显示响应 VideosResponse videoResponse = response.body(); 我得到：VideosResponse@3b8bfaa4，这正常吗？我该如何使用它？
是否建议使用 parcelable？它会改变什么吗？
将 toString() 添加到您的 VideoInfo class 然后在 onResponse 中，您可以使用类似
的内容记录返回列表的单个对象
for (VideoInfo videoInfo : videoResponses)
Log.d(LOG_TAG, "VideoInfo: " + videoInfo.toString());
I know I should be able to do something like response.body().item.getID() for example
嗯，不，不是基于我理解的代码。
response 这里看起来是 Response<VideosResponse> responseresponse.body() 因此会是 VideosResponseresponse.body().item 将失败，因为 VideosResponse 没有 item 字段
When I print the log for the response show the response VideosResponse videoResponse = response.body(); I get : VideosResponse@3b8bfaa4 , is this normal?
是的。这是未覆盖 toString() 的 Java 对象的默认 toString() 输出。这表明 response.body() 是一个 VideosResponse.
I have created a response/parse class VideosResponse.java
那么你就知道 VideosResponse 没有任何名为 item 的东西。 Gson 不会向您的 类 添加方法；它仅根据解析一些 JSON.
填充那些 类 的实例
如果您希望 VideosResponse 具有 item 字段，请确保该字段存在于您的 JSON 中，然后编辑 VideosResponse 以具有 [=16] =] 字段.
您需要向我们展示 json 回复，或者您也可以自行计算。基本上 对象属性名称必须匹配 json 属性 ，您可以 debug 查看元素是否正在接收值，如果它们不是，则向其添加 SerializedName 注释。从那里开始，有两种可能性，要么你有 一个对象，要么有一个数组 。您可以为其进一步创建 POJO 或创建 List 类型的属性。
我正在实施改造 2 接口来解析 JSON 元素（视频 url、缩略图、标题等）
JSONschema2Pojo 产生了 4 个 pojo classes，但是 main/root 一个是 VideoInfo（没关系实现 Parcelable，我还没有用它做任何事情）
缺少 @SerializedName("....") 会影响什么，知道这是由 jsonschema2pojo 自动生成的吗？更新：生成了新的 pojo classes，这次带有 Gson 注释 (@SerializedName("") and @Expose) 但仍然有同样的问题。
import android.os.Parcel;
import android.os.Parcelable;
import java.util.ArrayList;
import java.util.List;
public class VideoInfo implements Parcelable {
private List<Item> items = new ArrayList<Item>();
private int pageNumber;
private int pageSize;
private int totalCount;
/**
* No args constructor for use in serialization
*
*/
public VideoInfo() {
}
/**
*
* @param totalCount
* @param items
* @param pageSize
* @param pageNumber
*/
public VideoInfo(List<Item> items, int pageNumber, int pageSize, int totalCount) {
this.items = items;
this.pageNumber = pageNumber;
this.pageSize = pageSize;
this.totalCount = totalCount;
}
/**
*
* @return
* The items
*/
public List<Item> getItems() {
return items;
}
/**
*
* @param items
* The items
*/
public void setItems(List<Item> items) {
this.items = items;
}
/**
*
* @return
* The pageNumber
*/
public int getPageNumber() {
return pageNumber;
}
/**
*
* @param pageNumber
* The page_number
*/
public void setPageNumber(int pageNumber) {
this.pageNumber = pageNumber;
}
/**
*
* @return
* The pageSize
*/
public int getPageSize() {
return pageSize;
}
/**
*
* @param pageSize
* The page_size
*/
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
/**
*
* @return
* The totalCount
*/
public int getTotalCount() {
return totalCount;
}
/**
*
* @param totalCount
* The total_count
*/
public void setTotalCount(int totalCount) {
this.totalCount = totalCount;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
}
}
UPDATE：在上面的 class VideoInfo 中你可以看到 private List<Item> items = new ArrayList<Item>(); 这是因为还有另一个 pojo class 有一个列表时间，如下：
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
import java.util.ArrayList;
import java.util.List;
public class Item {
@SerializedName("id")
@Expose
private int id;
@SerializedName("name")
@Expose
private String name;
@SerializedName("shortDescription")
@Expose
private String shortDescription;
@SerializedName("creationDate")
@Expose
private String creationDate;
@SerializedName("publishedDate")
@Expose
private String publishedDate;
@SerializedName("linkURL")
@Expose
private String linkURL;
@SerializedName("linkText")
@Expose
private String linkText;
@SerializedName("tags")
@Expose
private List<String> tags = new ArrayList<String>();
@SerializedName("videoStillURL")
@Expose
private String videoStillURL;
@SerializedName("thumbnailURL")
@Expose
private String thumbnailURL;
@SerializedName("length")
@Expose
private int length;
@SerializedName("renditions")
@Expose
private List<Rendition> renditions = new ArrayList<Rendition>();
@SerializedName("IOSRenditions")
@Expose
private List<IOSRendition> IOSRenditions = new ArrayList<IOSRendition>();
@SerializedName("HDSRenditions")
@Expose
private List<Object> HDSRenditions = new ArrayList<Object>();
/**
* No args constructor for use in serialization
*
*/
public Item() {
}
/**
*
* @param tags
* @param videoStillURL
* @param HDSRenditions
* @param id
* @param creationDate
* @param IOSRenditions
* @param linkText
* @param shortDescription
* @param renditions
* @param name
* @param linkURL
* @param length
* @param publishedDate
* @param thumbnailURL
*/
public Item(int id, String name, String shortDescription, String creationDate, String publishedDate, String linkURL, String linkText, List<String> tags, String videoStillURL, String thumbnailURL, int length, List<Rendition> renditions, List<IOSRendition> IOSRenditions, List<Object> HDSRenditions) {
this.id = id;
this.name = name;
this.shortDescription = shortDescription;
this.creationDate = creationDate;
this.publishedDate = publishedDate;
this.linkURL = linkURL;
this.linkText = linkText;
this.tags = tags;
this.videoStillURL = videoStillURL;
this.thumbnailURL = thumbnailURL;
this.length = length;
this.renditions = renditions;
this.IOSRenditions = IOSRenditions;
this.HDSRenditions = HDSRenditions;
}
/**
*
* @return
* The id
*/
public int getId() {
return id;
}
/**
*
* @param id
* The id
*/
public void setId(int id) {
this.id = id;
}
/**
*
* @return
* The name
*/
public String getName() {
return name;
}
/**
*
* @param name
* The name
*/
public void setName(String name) {
this.name = name;
}
/**
*
* @return
* The shortDescription
*/
public String getShortDescription() {
return shortDescription;
}
/**
*
* @param shortDescription
* The shortDescription
*/
public void setShortDescription(String shortDescription) {
this.shortDescription = shortDescription;
}
/**
*
* @return
* The creationDate
*/
public String getCreationDate() {
return creationDate;
}
/**
*
* @param creationDate
* The creationDate
*/
public void setCreationDate(String creationDate) {
this.creationDate = creationDate;
}
/**
*
* @return
* The publishedDate
*/
public String getPublishedDate() {
return publishedDate;
}
/**
*
* @param publishedDate
* The publishedDate
*/
public void setPublishedDate(String publishedDate) {
this.publishedDate = publishedDate;
}
/**
*
* @return
* The linkURL
*/
public String getLinkURL() {
return linkURL;
}
/**
*
* @param linkURL
* The linkURL
*/
public void setLinkURL(String linkURL) {
this.linkURL = linkURL;
}
/**
*
* @return
* The linkText
*/
public String getLinkText() {
return linkText;
}
/**
*
* @param linkText
* The linkText
*/
public void setLinkText(String linkText) {
this.linkText = linkText;
}
/**
*
* @return
* The tags
*/
public List<String> getTags() {
return tags;
}
/**
*
* @param tags
* The tags
*/
public void setTags(List<String> tags) {
this.tags = tags;
}
/**
*
* @return
* The videoStillURL
*/
public String getVideoStillURL() {
return videoStillURL;
}
/**
*
* @param videoStillURL
* The videoStillURL
*/
public void setVideoStillURL(String videoStillURL) {
this.videoStillURL = videoStillURL;
}
/**
*
* @return
* The thumbnailURL
*/
public String getThumbnailURL() {
return thumbnailURL;
}
/**
*
* @param thumbnailURL
* The thumbnailURL
*/
public void setThumbnailURL(String thumbnailURL) {
this.thumbnailURL = thumbnailURL;
}
/**
*
* @return
* The length
*/
public int getLength() {
return length;
}
/**
*
* @param length
* The length
*/
public void setLength(int length) {
this.length = length;
}
/**
*
* @return
* The renditions
*/
public List<Rendition> getRenditions() {
return renditions;
}
/**
*
* @param renditions
* The renditions
*/
public void setRenditions(List<Rendition> renditions) {
this.renditions = renditions;
}
/**
*
* @return
* The IOSRenditions
*/
public List<IOSRendition> getIOSRenditions() {
return IOSRenditions;
}
/**
*
* @param IOSRenditions
* The IOSRenditions
*/
public void setIOSRenditions(List<IOSRendition> IOSRenditions) {
this.IOSRenditions = IOSRenditions;
}
/**
*
* @return
* The HDSRenditions
*/
public List<Object> getHDSRenditions() {
return HDSRenditions;
}
/**
*
* @param HDSRenditions
* The HDSRenditions
*/
public void setHDSRenditions(List<Object> HDSRenditions) {
this.HDSRenditions = HDSRenditions;
}
}
UPDATE: 所以上面你可以看到我们已经定义了 private List<Rendition> renditions = new ArrayList<Rendition>(); 在另一个 pojo classes Rendition.class:
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
public class Rendition {
@SerializedName("audioOnly")
@Expose
private boolean audioOnly;
@SerializedName("controllerType")
@Expose
private String controllerType;
@SerializedName("displayName")
@Expose
private String displayName;
@SerializedName("encodingRate")
@Expose
private int encodingRate;
@SerializedName("frameHeight")
@Expose
private int frameHeight;
@SerializedName("frameWidth")
@Expose
private int frameWidth;
@SerializedName("id")
@Expose
private int id;
@SerializedName("referenceId")
@Expose
private Object referenceId;
@SerializedName("remoteStreamName")
@Expose
private Object remoteStreamName;
@SerializedName("remoteUrl")
@Expose
private Object remoteUrl;
@SerializedName("size")
@Expose
private int size;
@SerializedName("uploadTimestampMillis")
@Expose
private int uploadTimestampMillis;
@SerializedName("url")
@Expose
private String url;
@SerializedName("videoCodec")
@Expose
private String videoCodec;
@SerializedName("videoContainer")
@Expose
private String videoContainer;
@SerializedName("videoDuration")
@Expose
private int videoDuration;
/**
* No args constructor for use in serialization
*
*/
public Rendition() {
}
/**
*
* @param controllerType
* @param encodingRate
* @param referenceId
* @param url
* @param size
* @param id
* @param uploadTimestampMillis
* @param frameWidth
* @param remoteUrl
* @param videoContainer
* @param remoteStreamName
* @param displayName
* @param videoCodec
* @param videoDuration
* @param audioOnly
* @param frameHeight
*/
public Rendition(boolean audioOnly, String controllerType, String displayName, int encodingRate, int frameHeight, int frameWidth, int id, Object referenceId, Object remoteStreamName, Object remoteUrl, int size, int uploadTimestampMillis, String url, String videoCodec, String videoContainer, int videoDuration) {
this.audioOnly = audioOnly;
this.controllerType = controllerType;
this.displayName = displayName;
this.encodingRate = encodingRate;
this.frameHeight = frameHeight;
this.frameWidth = frameWidth;
this.id = id;
this.referenceId = referenceId;
this.remoteStreamName = remoteStreamName;
this.remoteUrl = remoteUrl;
this.size = size;
this.uploadTimestampMillis = uploadTimestampMillis;
this.url = url;
this.videoCodec = videoCodec;
this.videoContainer = videoContainer;
this.videoDuration = videoDuration;
}
/**
*
* @return
* The audioOnly
*/
public boolean isAudioOnly() {
return audioOnly;
}
/**
*
* @param audioOnly
* The audioOnly
*/
public void setAudioOnly(boolean audioOnly) {
this.audioOnly = audioOnly;
}
/**
*
* @return
* The controllerType
*/
public String getControllerType() {
return controllerType;
}
/**
*
* @param controllerType
* The controllerType
*/
public void setControllerType(String controllerType) {
this.controllerType = controllerType;
}
/**
*
* @return
* The displayName
*/
public String getDisplayName() {
return displayName;
}
/**
*
* @param displayName
* The displayName
*/
public void setDisplayName(String displayName) {
this.displayName = displayName;
}
/**
*
* @return
* The encodingRate
*/
public int getEncodingRate() {
return encodingRate;
}
/**
*
* @param encodingRate
* The encodingRate
*/
public void setEncodingRate(int encodingRate) {
this.encodingRate = encodingRate;
}
/**
*
* @return
* The frameHeight
*/
public int getFrameHeight() {
return frameHeight;
}
/**
*
* @param frameHeight
* The frameHeight
*/
public void setFrameHeight(int frameHeight) {
this.frameHeight = frameHeight;
}
/**
*
* @return
* The frameWidth
*/
public int getFrameWidth() {
return frameWidth;
}
/**
*
* @param frameWidth
* The frameWidth
*/
public void setFrameWidth(int frameWidth) {
this.frameWidth = frameWidth;
}
/**
*
* @return
* The id
*/
public int getId() {
return id;
}
/**
*
* @param id
* The id
*/
public void setId(int id) {
this.id = id;
}
/**
*
* @return
* The referenceId
*/
public Object getReferenceId() {
return referenceId;
}
/**
*
* @param referenceId
* The referenceId
*/
public void setReferenceId(Object referenceId) {
this.referenceId = referenceId;
}
/**
*
* @return
* The remoteStreamName
*/
public Object getRemoteStreamName() {
return remoteStreamName;
}
/**
*
* @param remoteStreamName
* The remoteStreamName
*/
public void setRemoteStreamName(Object remoteStreamName) {
this.remoteStreamName = remoteStreamName;
}
/**
*
* @return
* The remoteUrl
*/
public Object getRemoteUrl() {
return remoteUrl;
}
/**
*
* @param remoteUrl
* The remoteUrl
*/
public void setRemoteUrl(Object remoteUrl) {
this.remoteUrl = remoteUrl;
}
/**
*
* @return
* The size
*/
public int getSize() {
return size;
}
/**
*
* @param size
* The size
*/
public void setSize(int size) {
this.size = size;
}
/**
*
* @return
* The uploadTimestampMillis
*/
public int getUploadTimestampMillis() {
return uploadTimestampMillis;
}
/**
*
* @param uploadTimestampMillis
* The uploadTimestampMillis
*/
public void setUploadTimestampMillis(int uploadTimestampMillis) {
this.uploadTimestampMillis = uploadTimestampMillis;
}
/**
*
* @return
* The url
*/
public String getUrl() {
return url;
}
/**
*
* @param url
* The url
*/
public void setUrl(String url) {
this.url = url;
}
/**
*
* @return
* The videoCodec
*/
public String getVideoCodec() {
return videoCodec;
}
/**
*
* @param videoCodec
* The videoCodec
*/
public void setVideoCodec(String videoCodec) {
this.videoCodec = videoCodec;
}
/**
*
* @return
* The videoContainer
*/
public String getVideoContainer() {
return videoContainer;
}
/**
*
* @param videoContainer
* The videoContainer
*/
public void setVideoContainer(String videoContainer) {
this.videoContainer = videoContainer;
}
/**
*
* @return
* The videoDuration
*/
public int getVideoDuration() {
return videoDuration;
}
/**
*
* @param videoDuration
* The videoDuration
*/
public void setVideoDuration(int videoDuration) {
this.videoDuration = videoDuration;
}
}
我创建了一个改装界面VideoInterface.class
进口retrofit2.Call； 导入 retrofit2.http.GET;
/**
* retrofit 2 interface
*/
public interface VideoInterface {
String apiURL = ".....";
@GET(apiURL)
public Call<VideosResponse> listVideos();
}
我创建了一个response/parseclassVideosResponse.java
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import java.util.ArrayList;
import java.util.List;
/**
*/
public class VideosResponse {
//initalizing the collection
List<VideoInfo> videos;
public VideosResponse() {
videos = new ArrayList<VideoInfo>();
}
//parsing the response
public static VideosResponse parseJSON(String response) {
Gson gson = new GsonBuilder().create();
VideosResponse videosResponse = gson.fromJson(response, VideosResponse.class);
return videosResponse;
}
}
UPDATED ：最后我调用了 API ，但无法获取单个元素
我知道我应该能够做一些像 response.body().getItem().getID().getRendition().getUrl() 这样的事情，但是我在自动完成中看不到它，如果我写它我会出错。
这段代码在我的 onResume() 方法中，我在下面注释掉 public static 的原因是因为它在 onResume()
// Creating a simple REST adapter which points the API
// public static
final String BASE_URL = "http://api......";
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
// Creating an instance of our API interface.
VideoInterface service = retrofit.create(VideoInterface.class);
Call<VideosResponse> call = service.listVideos();
call.enqueue(new Callback<VideosResponse>() {
@Override
public void onResponse(Call<VideosResponse> call, Response<VideosResponse> response) {
VideosResponse videoResponse = response.body();
}
@Override
public void onFailure(Call<VideosResponse> call, Throwable t) {
}});
到最后一步似乎一切正常（没有错误），以下日志给我：
Log.d("Videos ", response.message()); //OK
Log.d("Videos ", String.valueOf(response.isSuccess())); //TRUE
Log.d("Videos ", String.valueOf(response.code())); //200
但我仍然无法获得我需要的字符串。当我打印响应日志时显示响应 VideosResponse videoResponse = response.body(); 我得到：VideosResponse@3b8bfaa4，这正常吗？我该如何使用它？
是否建议使用 parcelable？它会改变什么吗？
将 toString() 添加到您的 VideoInfo class 然后在 onResponse 中，您可以使用类似
的内容记录返回列表的单个对象for (VideoInfo videoInfo : videoResponses) Log.d(LOG_TAG, "VideoInfo: " + videoInfo.toString());
I know I should be able to do something like response.body().item.getID() for example
嗯，不，不是基于我理解的代码。
response这里看起来是Response<VideosResponse> responseresponse.body()因此会是VideosResponseresponse.body().item将失败，因为VideosResponse没有item字段
When I print the log for the response show the response VideosResponse videoResponse = response.body(); I get : VideosResponse@3b8bfaa4 , is this normal?
是的。这是未覆盖 toString() 的 Java 对象的默认 toString() 输出。这表明 response.body() 是一个 VideosResponse.
I have created a response/parse class VideosResponse.java
那么你就知道 VideosResponse 没有任何名为 item 的东西。 Gson 不会向您的 类 添加方法；它仅根据解析一些 JSON.
如果您希望 VideosResponse 具有 item 字段，请确保该字段存在于您的 JSON 中，然后编辑 VideosResponse 以具有 [=16] =] 字段.
您需要向我们展示 json 回复，或者您也可以自行计算。基本上 对象属性名称必须匹配 json 属性 ，您可以 debug 查看元素是否正在接收值，如果它们不是，则向其添加 SerializedName 注释。从那里开始，有两种可能性，要么你有 一个对象，要么有一个数组 。您可以为其进一步创建 POJO 或创建 List 类型的属性。