我正在我的应用程序中设置 Firebase 电话身份验证。我在 firebase auth 部分白名单中设置了一个测试电话号码和一个验证码。当我用这个数字和代码进行测试时,它工作正常。但是当我使用另一个号码进行测试时,出现以下错误:
onVerificationFailed com.google.firebase.auth.FirebaseAuthInvalidCredentialsException:
The request contains malformed or mismatching credentials [ App ID does not match the requested project.
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旁注:我也在这个 android 应用程序中使用了 facebook 帐户工具包,并且进展顺利。
有什么建议?
我使用 Zabbix 作为我的 Linux 监控解决方案。
\n显示MySQL - The buffer pool utilization is less than\xc2\xa050% in the last 5 minutes. This means that there is a lot of unused RAM allocated for the buffer pool, which you can easily reallocate at the moment为警告。
我应该担心这个吗?
\n如何解决这个问题?
我试图了解PreparedStatements&CallableStatements与我之间的区别。因此,任何人都可以将以下sql查询转换为CallableStatement。我知道如何将Statement转换为,PreparedStatement但存在问题CallableStatements。
作为一个 java.sql.Statement
SELECT * FROM Customer WHERE customerId = 'C001'
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作为一个 java.sql.PreparedStatement
SELECT * FROM Customer WHERE customerId = ? //set customerId using preparedStatement.setString(1,"C001")
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如何在中编写相同的查询 CallableStatements
提前致谢!
我正在尝试Either根据选项值返回值。我的目标是如果该选项存在则返回Either.right(),否则代码应返回Either.left()。我使用 Java 8 和 vavr 0.9.2
我想避免有条件的叠瓦
public Either<String, Integer> doSomething() {
Optional<Integer> optionalInteger = Optional.of(Integer.MIN_VALUE);
Option<Integer> integerOption = Option.ofOptional(optionalInteger);
return integerOption.map(value -> {
//some other actions here
return Either.right(value);
}).orElse(() -> {
//some other checks her also
return Either.left("Error message");
});
}
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编译器失败并显示此消息
Error:(58, 7) java: no suitable method found for orElse(()->Either[...]age"))
method io.vavr.control.Option.orElse(io.vavr.control.Option<? extends io.vavr.control.Either<java.lang.Object,java.lang.Integer>>) is not applicable
(argument mismatch; io.vavr.control.Option is not a functional interface
multiple non-overriding abstract methods found in interface io.vavr.control.Option)
method io.vavr.control.Option.orElse(java.util.function.Supplier<? …Run Code Online (Sandbox Code Playgroud) 从那以后我一直遇到这个错误,我检查了 Django 文档并通过谷歌搜索了许多网站,但仍然没有得到这个错误的解决方案,在此先感谢。每当我想运行服务器时都会出现此错误
from datetime import timedelta
from django.core.cache import cache
from django.utils import translation, timezone
from django.conf import settings as global_settings
import pytz
from djangobb_forum import settings as forum_settings
class TimezoneMiddleware(object):
def process_request(self, request):
if request.user.is_authenticated():
profile = request.user.forum_profile
try:
timezone.activate(profile.time_zone)
except pytz.UnknownTimeZoneError:
profile.time_zone = global_settings.TIME_ZONE
profile.save()
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这是我在 settings.py 中的中间件,我使用的是 python 3.7 和 Django 2.2
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
#DjangoBB_Forum part
'django.middleware.cache.UpdateCacheMiddleware',
'django.middleware.locale.LocaleMiddleware',
'pagination.middleware.PaginationMiddleware',
'django.middleware.cache.FetchFromCacheMiddleware',
'djangobb_forum.middleware.LastLoginMiddleware',
'djangobb_forum.middleware.UsersOnline',
'djangobb_forum.middleware.TimezoneMiddleware',
]
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这是我得到的错误
System check identified …Run Code Online (Sandbox Code Playgroud) 我想创建一个能够在所有API中运行的GridLayout.
问题是,当我使用GridLayout而不是android.support.v7.widget.GridLayout时,该应用程序在Android 7.1.1中正常运行,但在旧版本中它崩溃了.
但是,如果我使用android.support.v7.widget.GridLayout而不是GridLayout(如下面的代码),它总是崩溃.
activity_main
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#FFF"
tools:context="devector.dom.gridtest.MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="wrap_content">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textGrid"
android:text="Grid test"
android:textColor="#000"
android:layout_centerInParent="true"
android:textSize="34sp"
/>
</RelativeLayout>
<android.support.v7.widget.GridLayout
android:textAlignment="center"
android:id="@+id/mainGrid"
android:padding="25dp"
android:layout_marginLeft="8dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:columnCount="2"
app:rowCount="3"
app:alignmentMode="alignMargins"
app:columnOrderPreserved="false">
<!-- Row 1 -->
<!-- Column 1-->
<android.support.v7.widget.CardView
android:layout_width="150dp"
android:layout_height="125dp"
android:layout_marginBottom="16dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
app:cardElevation="8dp"
app:cardCornerRadius="8dp"
>
<LinearLayout
android:layout_gravity="center_horizontal|center_vertical"
android:layout_margin="16dp"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<ImageView
android:src="@drawable/zerotwo"
android:layout_gravity="center_horizontal" …Run Code Online (Sandbox Code Playgroud)