测试新的Google Firebase，我在显示firebase实时数据库中的数据时遇到此错误。见下面的错误。
06-09 22:23:05.335 28373-28373/appsng.com.pappaz V/BitmapFactory: DecodeImagePath(decodeResourceStream3) : res/mipmap-mdpi-v4/avatar.jpg
06-09 22:23:05.375 28373-28373/appsng.com.pappaz V/BitmapFactory: DecodeImagePath(decodeResourceStream3) : res/mipmap-mdpi-v4/thumb_up.png
06-09 22:23:05.380 28373-28373/appsng.com.pappaz V/BitmapFactory: DecodeImagePath(decodeResourceStream3) : res/mipmap-mdpi-v4/message.png
06-09 22:23:05.390 28373-28373/appsng.com.pappaz W/ClassMapper: No setter/field for photo_url found on class models.Post$Photo
06-09 22:23:05.390 28373-28373/appsng.com.pappaz W/ClassMapper: No setter/field for photo_url found on class models.Post$Photo
06-09 22:23:05.390 28373-28373/appsng.com.pappaz W/ClassMapper: No setter/field for photo_url found on class models.Post$Photo
06-09 22:23:05.390 28373-28373/appsng.com.pappaz W/ClassMapper: No setter/field for photo_url found on class models.Post$Photo
06-09 22:23:05.395 28373-28373/appsng.com.pappaz V/BitmapFactory: DecodeImagePath(decodeResourceStream3) : res/mipmap-mdpi-v4/clear.png
06-09 22:23:05.400 28373-28373/appsng.com.pappaz D/data: null
06-09 22:23:05.400 28373-28373/appsng.com.pappaz V/BitmapFactory: DecodeImagePath(decodeResourceStream3) : res/mipmap-hdpi-v4/no_image_square.png
06-09 22:23:05.415 28373-28373/appsng.com.pappaz D/data: null
06-09 22:23:05.415 28373-28373/appsng.com.pappaz D/data: null
06-09 22:23:05.420 28373-28373/appsng.com.pappaz D/data: null
06-09 22:23:05.450 28373-28540/appsng.com.pappaz I/System.out: (HTTPLog)-Static: isSBSettingEnabled false
06-09 22:23:05.450 28373-28540/appsng.com.pappaz I/System.out: (HTTPLog)-Static: isShipBuild true
06-09 22:23:05.450 28373-28540/appsng.com.pappaz I/System.out: (HTTPLog)-Thread-12056-119902642: SmartBonding Enabling is false, SHIP_BUILD is true, log to file is false, DBG is false
06-09 22:23:05.450 28373-28540/appsng.com.pappaz I/System.out: (HTTPLog)-Static: isSBSettingEnabled false
06-09 22:23:05.465 28373-28373/appsng.com.pappaz W/ClassMapper: No setter/field for photo_url found on class models.Post$Photo
06-09 22:23:05.470 28373-28540/appsng.com.pappaz I/System.out: KnoxVpnUidStorageknoxVpnSupported API value returned is false
06-09 22:23:05.470 28373-28373/appsng.com.pappaz D/data: null
06-09 22:23:05.590 28373-28373/appsng.com.pappaz I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@1cf1f8b7 time:10585179
06-09 22:23:10.090 28373-28413/appsng.com.pappaz V/FA: Inactivity, disconnecting from AppMeasurementService
它似乎来自我的模特课。请参阅下面的模型Post class
package models;
import com.google.firebase.database.Exclude;
import com.google.firebase.database.IgnoreExtraProperties;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
public class Post implements Serializable{
public String id,user_id,user_name,content,created,likes,user_photo;
ArrayList<Photo> photos = new ArrayList<>();
ArrayList<Comment> comments = new ArrayList<>();
public Post(){
}
public Post(String id,String user_id,String user_name,String content,String created,String likes,String user_photo){
this.id = id;
this.user_id = user_id;
this.user_name = user_name;
this.content = content;
this.created = created;
this.likes = likes;
this.user_photo = user_photo;
}
@Exclude
public Map<String, Object> toMap() {
HashMap<String, Object> result = new HashMap<>();
result.put("user_id", user_id);
result.put("user_name", user_name);
result.put("content", content);
result.put("created", created);
result.put("likes", likes);
result.put("user_photo", user_photo);
return result;
}
public ArrayList<Comment> getComments() {
return comments;
}
public ArrayList<Photo> getPhotos() {
return photos;
}
//// getters ////
public String getId(){
return this.id;
}
public String getUser_id(){
return this.user_id;
}
public String getUser_name(){
return this.user_name;
}
public String getUser_photo(){
return this.user_photo;
}
public String getContent(){
return this.content;
}
public String getCreated(){
return this.created;
}
public String getLikes(){
return this.likes;
}
//// setters ////
public void setComments(ArrayList<Comment> value){
this.comments = value;
}
public void setPhotos(ArrayList<Photo> value){
this.photos = value;
}
public void setId(String value){
this.id = value;
}
public void setUser_id(String value){
this.user_id = value;
}
public void setUser_name(String value){
this.user_name = value;
}
public void setUser_photo(String value){
this.user_photo = value;
}
public void setContent(String value){
this.content = value;
}
public void setCreated(String value){
this.created = value;
}
public void setLikes(String value){
this.likes = value;
}
public String toString(){
return this.user_id;
}
public static class Photo implements Serializable{
String photo_url;
public Photo(){
}
public Photo(String photo_url){
this.photo_url = photo_url;
}
public String getPhotoUrl(){
return photo_url;
}
public void setPhotoUrl(String photo_url){
this.photo_url = photo_url;
}
public String toString(){
return this.photo_url;
}
}
public static class Comment implements Serializable{
public String id,user_id,user_name,user_photo,timestamp,content;
public Comment(){
}
public Comment(String id,String user_id,String user_name,String user_photo,String timestamp,String content){
this.id = id;
this.user_id = user_id;
this.user_name = user_name;
this.user_photo = user_photo;
this.timestamp = timestamp;
this.content = content;
}
@Exclude
public Map<String, Object> toMap() {
HashMap<String, Object> result = new HashMap<>();
result.put("id", id);
result.put("user_id", user_id);
result.put("user_name", user_name);
result.put("user_photo", user_photo);
result.put("timestamp", timestamp);
result.put("content", content);
return result;
}
//// getters ////
public String getId(){
return this.id;
}
public String getUser_id(){
return this.user_id;
}
public String getUser_name(){
return this.user_name;
}
public String getUser_photo(){
return this.user_photo;
}
public String getTimestamp(){
return this.timestamp;
}
public String getContent(){
return this.content;
}
//// setters ////
public void setId(String value){
this.id = value;
}
public void setUser_id(String value){
this.user_id = value;
}
public void setUser_name(String value){
this.user_name = value;
}
public void setUser_photo(String value){
this.user_photo = value;
}
public void setTimestamp(String value){
this.timestamp = value;
}
public void setContent(String value){
this.content = value;
}
public String toString(){
return this.id;
}
}