我得到的错误日志(部分):
mClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)`2019-01-03 11:48:45.070 28064-28064/com.example.xandi.whib E/AndroidRuntime: at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.serialize(com.google.firebase:firebase-database@@16.0.5:167)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.access$200(com.google.firebase:firebase-database@@16.0.5:47)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.serialize(com.google.firebase:firebase-database@@16.0.5:663)
read: unexpected EOF!
`
这是我正在尝试做的代码:
private void createNewGroup(int i) {
List<String> userUIDList = new ArrayList<String>();
userUIDList.add(Util.getUser().getUserUID());
List<User> users = new ArrayList<>();
users.add(Util.getUser());
GroupTempInfo groupTempInfo = new GroupTempInfo(users, false);
Group group = new Group(UUID.randomUUID().toString(), comment.getSubject().getSubjectUID(), i, Util.getServer().getTempInfo().getNumber(),
groupTempInfo, "text", new ArrayList<Question>(), userUIDList,
new ArrayList<Participation>(), false, comment);
comment.setCommentGroup(group);
Util.mServerDatabaseRef.child(Util.getServer().getType()).child(Util.getServer().getServerUID()).child("timeline").child("commentList").child(comment.getCommentUID()).child("commentGroup").setValue(group);
sendNotification();
}
这是我在 db firebase 上的结构。我只是想将一个对象添加到“commmentList” db structure
我在编译时没有收到任何错误，只是在 logcat 上 任何人都知道问题出在哪里？
最佳答案
当我试图将 Uri 对象放入我的数据库时，这个错误发生在我身上。我通过放置 Uri 的 String 表示来解决它。
关于java - 将对象保存到 firebase db 时出现意外错误？ (mClassMapper.access$200(com.google.firebase :firebase-database@@16. 0.5:47))，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/54024472/
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