无法将新数据保存在Firebase中 [英] Unable to save new data in firebase
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问题描述
我试图在节点 Visitors 下的Firebase中保存新数据。
Visitor：{
$ userId：{
.write：auth！= null&& $ userId === auth.uid，
.read：auth.uid！= null
} $
$ p
在我的应用程序中， pre> FirebaseAuth mFirebaseAuth = FirebaseAuth.getInstance（）;
FirebaseUser mFirebaseUser = mFirebaseAuth.getCurrentUser（）;
FirebaseDatabase mDatabase = FirebaseDatabase.getInstance（）;
if（mFirebaseUser == null）{
} else {
String mUserId = mFirebaseUser.getUid（）;
DatabaseReference vRef = mDatabase.getReference（MyFirebaseConstants.DATABASE_Visitor）;
DatabaseReference newVisitorRef = vRef.child（mUserId）.push（）;
字符串visitorKey = newVisitorRef.getKey（）;
访客访客=新访客（）// POJO
//其他几位设定员
visitor.setId（visitorKey）;
newVisitorRef.setValue（property）;
我的访客pojo扩展了RealmObject并实现了Parcelable
但是得到以下错误：
java.lang.StackOverflowError
at java .lang.reflect.Method.invokeNative（Native方法）$ b $在java.lang.reflect.Method.invoke（Method.java:525）
在com.google.android.gms.internal.zzamy $ zza.zzci（未知来源）
在com.google.android.gms.internal.zzamy.zzca（未知来源）
在com.google.android.gms.internal.zz
/ /和更多像这样
我的访客pojo
public class Visitor extends RealmObject implements Parcelable {
@PrimaryKey
private long timeStamp;
私人字符串visitorId;
private String phoneNumber =;
private String profileUri =;
public Visitor（）{
}
保护访客（包裹在）{
timeStamp = in.readLong（）;
visitorId = in.readString（）;
phoneNumber = in.readString（）;
profileUri = in.readString（）;
}
public static final Creator< Visitor> CREATOR = new Creator< Visitor>（）{
@Override
public Visitor createFromParcel（Parcel in）{
return new Visitor（in）;
$ b @Override
public Visitor [] newArray（int size）{
return new Visitor [size];
}
};
@Override
public int describeContents（）{
return 0;
$ b @Override
public void writeToParcel（Parcel dest，int flags）{
dest.writeLong（timeStamp）;
dest.writeString（visitorId）;
dest.writeString（phoneNumber）;
dest.writeString（profileUri）;
}
public void setTimeStamp（long timeStamp）{
this.timeStamp = timeStamp;
}
public long getTimeStamp（）{
return this.timeStamp;
}
public void setVisitorId（String visitorId）{
this.visitorId = visitorId;
}
public void setPhoneNumber（String phoneNumber）{
this.phoneNumber = phoneNumber;
}
public Uri getProfileUri（）{
return Uri.parse（profileUri）;
public void setProfileUri（Uri profileUri）{
this.profileUri = profileUri.toString（）;
$ b
解决方案
我知道问题在哪里pojo
public Uri getProfileUri（）{
return Uri .parse（profileUri）;
public void setProfileUri（Uri profileUri）{
this.profileUri = profileUri.toString（）;
区域支持 Uri Uri 作为参数，但firebase数据库不是。
<所以在我的pojo，我改成了 public String getProfileUri（）{
return profileUri;
}
public void setProfileUri（String profileUri）{
this.profileUri = profileUri;
}
I am trying to save new data in firebase under a node Visitors. i have already set some rules on that node.
"Visitor":{
"$userId":{
".write": "auth != null && $userId === auth.uid",
".read": " auth.uid != null"
}
},
In my app
FirebaseAuth mFirebaseAuth = FirebaseAuth.getInstance();
FirebaseUser mFirebaseUser = mFirebaseAuth.getCurrentUser();
FirebaseDatabase mDatabase = FirebaseDatabase.getInstance();
if(mFirebaseUser == null){
}else{
String mUserId = mFirebaseUser.getUid();
DatabaseReference vRef = mDatabase.getReference(MyFirebaseConstants.DATABASE_Visitor);
DatabaseReference newVisitorRef = vRef.child(mUserId).push();
String visitorKey = newVisitorRef.getKey();
Visitor visitor = new Visitor()//POJO
// other few setters
visitor.setId(visitorKey);
newVisitorRef.setValue(property);
my visitor pojo extends RealmObject and implements Parcelable
But am getting the following error
java.lang.StackOverflowError
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.google.android.gms.internal.zzamy$zza.zzci(Unknown Source)
at com.google.android.gms.internal.zzamy.zzca(Unknown Source)
at com.google.android.gms.internal.zz
//and many more like this
My visitor pojo
public class Visitor extends RealmObject implements Parcelable{
@PrimaryKey
private long timeStamp;
private String visitorId;
private String phoneNumber="";
private String profileUri="";
public Visitor(){
}
protected Visitor(Parcel in) {
timeStamp = in.readLong();
visitorId = in.readString();
phoneNumber = in.readString();
profileUri = in.readString();
}
public static final Creator<Visitor> CREATOR = new Creator<Visitor>() {
@Override
public Visitor createFromParcel(Parcel in) {
return new Visitor(in);
}
@Override
public Visitor[] newArray(int size) {
return new Visitor[size];
}
};
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeLong(timeStamp);
dest.writeString(visitorId);
dest.writeString(phoneNumber);
dest.writeString(profileUri);
}
public void setTimeStamp(long timeStamp){
this.timeStamp = timeStamp;
}
public long getTimeStamp(){
return this.timeStamp;
}
public void setVisitorId(String visitorId){
this.visitorId = visitorId;
}
public void setPhoneNumber(String phoneNumber){
this.phoneNumber = phoneNumber;
}
public Uri getProfileUri() {
return Uri.parse(profileUri);
}
public void setProfileUri(Uri profileUri) {
this.profileUri = profileUri.toString();
}
}
解决方案 I got to know where the problem is in my pojo
public Uri getProfileUri() {
return Uri.parse(profileUri);
}
public void setProfileUri(Uri profileUri) {
this.profileUri = profileUri.toString();
}
Realm is supporting getters of type Uri and setters with type Uri as parameter but firebase database does not.
so in my pojo, i changed to
public String getProfileUri() {
return profileUri;
}
public void setProfileUri(String profileUri) {
this.profileUri = profileUri;
}
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