我是表达和node.js的新手,我无法弄清楚app.use和app.get之间的区别.看起来你可以使用它们来发送信息.例如:
app.use('/',function(req, res,next) {
res.send('Hello');
next();
});
似乎与此相同:
app.get('/', function (req,res) {
res.send('Hello');
});
我需要将两个字段从整数更改为外键.如何构建我的迁移呢？
Schema::create('messages', function($table)
{
$table->increments('id');
$table->integer('sender');
$table->integer('recipient');
$table->string('title');
$table->longtext('body');
$table->timestamps();
$table->softDeletes();
$table->integer('regarding');
});
我会改sender到sender_id,recipient到recipient_id和regarding到regarding_id.
谁能帮助我理解"收益自我"和"收益率"之间的区别？
class YieldFirstLast
attr_accessor :first, :last
def initialize(first = nil, last = nil)
@first = first
@last = last
yield self if block_given?
end
def hello
puts "#{@first} #{@last} says hello!"
end
end
我是离子框架新手.我的数据来自sqlite结果.我可以先得到数据,这是我的数据结果,例如:
{title: "Test Title", content: "<p>Test hello</p>"}
这是我的控制器
.controller('TestDetailCtrl', function($scope, $sce, $stateParams, SQLService) {
var content = '';
SQLService.get_one($stateParams.testId).then(function(res) {
content = res[0];
var test_data = {
title: content.title,
content: $sce.trustAsHtml(content.content)
};
$scope.test = test_data
});
})
而我的观点
<ion-view view-title="{{test.title}}">
<ion-content class="padding">
{{test}}
<div ng-bind-html="test.content">{{test.content}}</div>
</ion-content>
</ion-view>
我可以输出html内容,但我的标题没有显示,我尝试输出测试数据,我发现测试的内容键是空的.我不知道.谢谢你的帮助.
我想在 iPhone 中构建项目，但收到此错误消息
\nThe operation couldn\xe2\x80\x99t be completed. \nUnable to launch com.xxxx.test because it has an invalid code signature, \ninadequate entitlements or its profile has not been explicitly trusted by the user.\n我试着去settings> general> VPN and device management但里面什么也没有，我只能使用工作或学校帐户登录，而没有其他任何权限。我的应用程序没有出现在 VPN 和设备管理部分，因此我无法授权任何内容。我该如何修复它？谢谢。
Xcode 13.0\niPhone X iOS 15
\n我的laravel版本是5.0.28,我在cloud9上构建,我将此命令添加到我的cron:
#!/bin/bash
PATH=/usr/bin
* * * * * php /home/ubuntu/workspace/app/artisan scheduled:run 1>> /dev/null 2>&1
我在我的上面添加了这段代码Kernel.php.我引用了这个网站:https://laravel-news.com/2014/11/laravel-5-scheduler/
<?php namespace App\Console;
use Illuminate\Console\Scheduling\Schedule;
use Illuminate\Foundation\Console\Kernel as ConsoleKernel;
use App\Http\Controllers\ApiController;
class Kernel extends ConsoleKernel {
protected $commands = [
'App\Console\Commands\Inspire',
];
protected function schedule(Schedule $schedule)
{
$schedule->call('ApiController@test_job')->hourly();
}
}
我等了,它仍然没有用,所以我尝试使用命令php artisan schedule:run,我得到了:No scheduled commands are ready to run.
我搜索并找到了这个答案:使用调度程序时,Laravel 5"类不存在"
所以我修改了我的代码.此外,此代码没有指定的时间,所以我修改了我cron的指定时间,但它仍然无法正常工作.我没有更多的想法.请帮忙.谢谢.
码
$schedule->call(join('@', [ApiController::class, 'test_job']));
cron的
0 0,3,6,9,12,15,18,21 * * * php /home/ubuntu/workspace/app/artisan …我有一个 Laravel 项目。这是我的docker-compose.yml文件。
nginx:
build: ./nginx/
ports:
- 90002:80
links:
- php
volumes_from:
- app
php:
build: ./php/
expose:
- 9000
links:
- mysql
volumes_from:
- app
composer:
image: composer/composer
volumes_from:
- php
working_dir: /var/www/html
app:
image: php:7.0-fpm
volumes:
- ./test-api:/var/www/html
command: "true"
mysql:
image: mysql:latest
volumes_from:
- data
environment:
MYSQL_ROOT_PASSWORD: test
MYSQL_DATABASE: user
MYSQL_USER: uesr
MYSQL_PASSWORD: test
data:
image: mysql:latest
volumes:
- /var/lib/mysql
command: "true"
phpmyadmin:
image: phpmyadmin/phpmyadmin
ports:
- 90003:80
links:
- mysql
environment:
PMA_HOST: mysql …我添加了一个ImageView并分配了一个jpg文件(a1.jpg),该文件是770Kb.当我运行项目时,会崩溃并显示大量错误日志.我已经尝试了另一个jpg文件,大小为70KB并运行项目,这没有问题.为什么？谢谢!
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:contentDescription="@string/Test_string"
android:src="@drawable/a1" />
错误日志
02-09 12:47:34.692: D/AndroidRuntime(1023): Shutting down VM
02-09 12:47:34.692: W/dalvikvm(1023): threadid=1: thread exiting with uncaught exception (group=0x40a70930)
02-09 12:47:34.802: E/AndroidRuntime(1023): FATAL EXCEPTION: main
02-09 12:47:34.802: E/AndroidRuntime(1023): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.lighter.androidntest4/com.lighter.androidntest4.MainActivity}: android.view.InflateException: Binary XML file line #7: Error inflating class <unknown>
02-09 12:47:34.802: E/AndroidRuntime(1023): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
02-09 12:47:34.802: E/AndroidRuntime(1023): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
02-09 12:47:34.802: E/AndroidRuntime(1023): at android.app.ActivityThread.access$600(ActivityThread.java:141)
02-09 12:47:34.802: E/AndroidRuntime(1023): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
02-09 12:47:34.802: E/AndroidRuntime(1023): at android.os.Handler.dispatchMessage(Handler.java:99)
02-09 12:47:34.802: E/AndroidRuntime(1023): …我正在尝试一次上传多个图像(3)并为每个图像创建缩略图.但我的代码上传了3张图片,只创建了1个缩略图(第1张图片的缩略图).如何创建多个图像的缩略图？ 控制器:uploadImage功能并创建缩略图功能
function uploadImage()
{
if($this->validate()==TRUE) {
$config['upload_path'] = "images/uploads/";
$config['allowed_types'] = "gif|jpg|jpeg|png";
$config['max_size'] = "5000";
$config['max_width'] = "1907";
$config['max_height'] = "1280";
$this->load->library('upload', $config);
foreach ($_FILES as $key => $value) {
if (!empty($value['tmp_name'])) {
if ( ! $this->upload->do_upload($key)) {
$error = array('error' => $this->upload->display_errors());
//failed display the errors
}
else {
//success
$finfo=$this->upload->data();
$this->_createThumbnail($finfo['file_name']);
$data['uploadInfo'] = $finfo;
$data['thumbnail_name'] = $finfo['raw_name']. '_thumb' .$finfo['file_ext'];
}
}
}
}
}
//Create Thumbnail function
function _createThumbnail($filename)
{
$config['image_library'] = "gd2";
$config['source_image'] = "images/uploads/" .$filename; …这是我的RectangleView:
import UIKit
class RectangleView: UIView
{
init(frame: CGRect)
{
// Initialization code
super.init(frame: frame)
}
/*
override func drawRect(rect: CGRect)
{
// Drawing code
}
*/
}
我RectangleView在我的上面添加CustomViewController:
import UIKit
class CustomViewController: UIViewController
{
var ballX:Int = 0
var ballY:Int = 0
let BALLWIDTH:Int = 50
let BALLHEIGHT:Int = 50
var navigationHeight:Double = 0.0
var pos:CGPoint?
var rectangleView:RectangleView?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically …