作者:bale999_816 | 来源:互联网 | 2023-02-10 11:16
我正在使用此代码更新Firebase上的数据,但它会生成新的代码.我尝试了很多代码,除了最后一个字符之外,它使用相同的密钥制作新代码.
我使用此作为Firebase网站推荐,但它不起作用.我创建了一个新的,并在下次更新时:
Map childUpdate = new HashMap<>();
childUpdate.put("/masjeds/" + masjed.getId(), masjed.toMap());
reference.updateChildren(childUpdate);
这段代码完成了同样的事情
final FirebaseDatabase database = FirebaseDatabase.getInstance();
masjeds = database.getReference("masjeds");
reference.child(masjed.getId()).setValue(masjed, new DatabaseReference.CompletionListener() {
@Override
public void onComplete(DatabaseError databaseError, DatabaseReference databaseReference) {
// Toast.makeText(MyMasjedsActivity.this, databaseError.getMessage(), Toast.LENGTH_SHORT).show();
}
});
Masjed Class是普通的java对象
public class Masjed {
private String userID;
private String id;
private String name;
private String address;
private String phone;
private boolean matloopEmam;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getUserID() {
return userID;
}
public void setUserID(String userID) {
this.userID = userID;
}
public boolean isMatloopEmam() {
return matloopEmam;
}
public void setMatloopEmam(boolean matloopEmam) {
this.matloopEmam = matloopEmam;
}
public Masjed(String name, String address, String phone) {
this.name = name;
this.address = address;
this.phOne= phone;
}
public Masjed() {
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phOne= phone;
}
public Map toMap() {
Map map = new HashMap<>();
map.put("name", name);
map.put("address", address);
map.put("phone", phone);
map.put("id", id);
map.put("userID", userID);
return map;
}
}
id是我假设的那个问题我假设push.getkey并把它作为ID然后使用push.setValue(masjed)将使用相同的密钥它结果是它并不总是Case当我使用它时密钥更改dosnt存在所以它创造了新的答案,帮助我切斯特答案