打印Firebase中的每个值

// 导入Firebase SDK模块
import com.google.firebase.database.*;

public class FirebaseExample {
    public static void main(String[] args) {
        // 连接到Firebase数据库
        FirebaseDatabase database = FirebaseDatabase.getInstance();
        DatabaseReference ref = database.getReference("path/to/data");

        // 获取数据并添加监听器
        ref.addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {
                // 遍历数据并打印每个值
                for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
                    Object value = snapshot.getValue();
                    System.out.println(value);
                }
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {
                System.out.println("读取数据失败：" + databaseError.getMessage());
            }
        });
    }
}