小编Aja*_*rni的帖子

我使用此命令成功安装了laravel 5:

composer create-project laravel/laravel test-laravel-5-project dev-develop --prefer-dist

我甚至使用php artisan -V命令验证了已安装的laravel的版本.输出是

Laravel Framework version 5.0-dev

然后我去了app/config/database.php,给了dafault db作为mysql并给出了配置

'mysql' => [ 'driver' => 'mysql', 'host' => env('DB_HOST', 'localhost'), 'database' => env('DB_DATABASE', 'Logintestfive'), 'username'=> env('DB_USERNAME', 'root'), 'password'=> env('DB_PASSWORD', 'manasa'), 'charset'=> 'utf-8', 'collation'=> 'utf-8_unicode_ci', prefix=> '', 'strict'=> false, ]

然后我去localhost:8000/auth/register填写表格并提交数据,这是我得到的错误:

PDOException in Connector.php line 47: SQLSTATE[28000] [1045] Access denied for user 'homestead'@'localhost' (using password: YES)

但是我laravel homestead在我的系统中既没有用于安装laravel 5也没用于vagrant设置laravel宅基地.它告诉我这样:

in Connector.php line 47
at PDO->__construct('mysql:host=localhost;dbname=homestead', 'homestead', …

我试图pear通过使用此命令告诉在哪里找到PHPUnit:

sudo pear channel-discover pear.phpunit.de

输出是:

Discovering channel pear.phpunit.de over http:// failed with message: channel-add: Cannot open "http://pear.phpunit.de/channel.xml" (File http://pear.phpunit.de:80/channel.xml not valid (received: HTTP/1.1 410 Gone
))
Trying to discover channel pear.phpunit.de over https:// instead
Discovery of channel "pear.phpunit.de" failed (channel-add: Cannot open "https://pear.phpunit.de/channel.xml" (File https://pear.phpunit.de:443/channel.xml not valid (received: HTTP/1.1 410 Gone
)))

我尝试了以下命令:

sudo pear channel-update pear.php.net
sudo pear upgrade-all

然后我channel-discover再次运行命令.我得到了如上所示的相同错误.
我甚至试过这些命令:

sudo pear config-set auto_discover 1

输出:

config-set succeeded

然后我尝试了这个命令:

sudo pear install pear.phpunit.de/PHPUnit …

我为物化模态写了一个简单的代码.
HTML代码:

<a class="waves-effect waves-light btn view" data-target="modal1">View Scores</a>
<!-- Modal Structure -->
<div id="modal1" class="modal">
  <div class="modal-content">
    <h4>Modal Header</h4>
    <p>A bunch of text</p>
  </div>
  <div class="modal-footer">
    <a href="#!" class=" modal-action modal-close waves-effect waves-green btn-flat">Agree</a>
  </div>
</div>  

JS代码:

$(document).ready(function() {
  // the "href" attribute of .modal-trigger must specify the modal ID that wants to be triggered
  /*$('.view').click(function (){
    $('#modal1').modal('open'); 
    alert('edskjcxnm');
  });*/
  /*$('.view').leanModal();*/
  $('#modal1').modal('open');
});  

JSFiddle链接:https://jsfiddle.net/7f6hmgcf/
为什么不工作？

我在 Android studio 3.2.1 中使用androidx navigation architecturewith Kotlin 1.2.71。我的片段代码是：

package com.dell.andnav.fragments

import android.os.Bundle
import android.support.v4.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.Button
import androidx.navigation.fragment.findNavController
import com.dell.andnav.R
import kotlinx.android.synthetic.main.fragment_welcome.*


/**
 * A simple [Fragment] subclass.
 * Use the [WelcomeFragment.newInstance] factory method to
 * create an instance of this fragment.
 *
 */
class WelcomeFragment : Fragment() {

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
                              savedInstanceState: Bundle?): View? {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_welcome, container, false) …

我在一个组中创建了几个静态芯片。我正在使用此链接 ( https://material.io/design/components/chips.html# ) 作为参考。代码如下：

<RelativeLayout
        android:id="@+id/inputLayout"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:layout_alignParentBottom="true"
        android:background="@android:color/white"
        android:gravity="bottom"
        android:paddingStart="8dp"
        android:paddingTop="8dp"
        android:paddingEnd="8dp"
        android:paddingBottom="9dp">

        <ImageView
            android:id="@+id/sendBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:paddingTop="4dp"
            app:srcCompat="@drawable/chatbot_send_btn" />

        <EditText
            android:id="@+id/queryEditText"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentStart="true"
            android:layout_toStartOf="@+id/sendBtn"
            android:imeOptions="actionSend"
            android:inputType="text"
            android:paddingTop="4dp"
            android:textSize="18sp" />

        <com.google.android.material.chip.ChipGroup
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:layout_above="@id/queryEditText">

            <com.google.android.material.chip.Chip
                style="@style/Widget.MaterialComponents.Chip.Choice"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="wsfdsd" />

            <com.google.android.material.chip.Chip
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="wsfdsd"
                style="@style/Widget.MaterialComponents.Chip.Choice"/>

            <com.google.android.material.chip.Chip
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="wsfdsd"
                style="@style/Widget.MaterialComponents.Chip.Choice"/>

            <com.google.android.material.chip.Chip
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="wsfdsd"
                style="@style/Widget.MaterialComponents.Chip.Choice"/>

            <com.google.android.material.chip.Chip
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="wsfdsd"
                style="@style/Widget.MaterialComponents.Chip.Choice"/>

            <com.google.android.material.chip.Chip
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="wsfdsd" />

        </com.google.android.material.chip.ChipGroup>

    </RelativeLayout>  

这不会显示所有芯片，它只显示 1 个芯片。如何添加水平滚动？我是否需要动态显示筹码以便我可以添加水平滚动？

我正在尝试使用bootstrap,这是我写的代码:

<!doctype html>
<html lang="en">
    <head>
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <link rel="stylesheet" href="./css/bootstrap.min.css">
        <link rel="stylesheet" href="./css/bootstrap-theme.min.css">
        <style type="text/css">
            .row-centered {
                text-align:center;
            }
            .col-centered {
                display:inline-block;
                float:none;
                text-align:left;
                margin-right:-4px;
            }
            .pos{
                position: relative;
                top: 240px;
            }
        </style>
    </head>
    <body>
        <div class="container">
            <div class="row row-centered pos">
                <div class="col-lg-8 col-centered">
                    <div class="well"></div>
                </div>
                <div class="col-lg-8 col-centered">
                    <div class="well"></div>
                </div>
                <div class="col-lg-8 col-centered">
                    <div class="well"></div>
                </div>
            </div>
        </div>
    </body>
</html>

输出如屏幕截图所示:
但是当我转换为手机屏幕时,我会这样:

我希望div在移动屏幕中显示在中心,一个在一个以上.我该怎么做？但它没有响应.

我使用BIRT和构建了一份报告Data tables.一切都按预期工作.然而height和width的BIRT viewer不是动态的.它们是静态的,因此应用了滚动.所以我写了一个代码,使height和width的BIRT viewer动态.

function resizeFrame(e,f){
        var x = document.getElementsByTagName("iframe");

        var winW = 1112, winH = 486;
        if (document.body && document.body.offsetWidth) {
            winW = document.body.offsetWidth;
            winH = document.body.offsetHeight;
        }
        if (document.compatMode=='CSS1Compat' && document.documentElement && document.documentElement.offsetWidth ) {
            winW = document.documentElement.offsetWidth;
            winH = document.documentElement.offsetHeight;
        }
        if (window.innerWidth && window.innerHeight) {
            winW = window.innerWidth;
            winH = window.innerHeight;
        }

        x[0].style.width = winW + "px";
        x[0].style.height = winH …

我正在使用sqlcipher我的依赖项.我的build.gradle文件如下:

apply plugin: 'com.android.application'

android {
    compileSdkVersion rootProject.ext.compileSdkVersion
    defaultConfig {
        applicationId "com.dell.prapproval"
        minSdkVersion rootProject.ext.minSdkVersion
        targetSdkVersion rootProject.ext.targetSdkVersion
        versionCode rootProject.ext.versionCode
        versionName "$rootProject.ext.versionName"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

       // setProperty("archivesBaseName", applicationId + "-v" + versionCode + "(" + versionName + ")")

        vectorDrawables.useSupportLibrary = true
        multiDexEnabled true
        consumerProguardFiles file('proguard.cfg')
        ndk {
            abiFilters "armeabi-v7a"
        }

    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    signingConfigs {
        config {
            keyAlias 'emc_mobile'
            keyPassword 'P@ssw0rd'
            storeFile file('EMC_MOBILE') …

我在 android studio 的 React Native 项目中打开了 android 文件夹，对build.gradle文件进行了所有可能的修改。但是我收到这个重复的错误：

Error:Failed to resolve: com.facebook.react:react-native:0.32.0  

我package.json的如下：

{
  "name": "empty-project-template",
  "private": true,
  "scripts": {
    "start": "react-native start",
    "android": "react-native run-android",
    "ios": "react-native run-ios"
  },
  "dependencies": {
    "eslint": "^3.17.0",
    "expo": "^30.0.1",
    "react": "^16.4.0",
    "react-native": "https://github.com/expo/react-native/archive/sdk-30.0.0.tar.gz",
    "react-native-elements": "^0.19.1",
    "react-native-vector-icons": "^4.2.0",
    "react-router": "^4.3.1"
  }
}   

我的 gradle 文件是：

apply plugin: "com.android.application"

import com.android.build.OutputFile

/**
 * The react.gradle file registers a task for each build variant (e.g. bundleDebugJsAndAssets
 * and bundleReleaseJsAndAssets).
 * These …

我通过参考文档在Amazon Web Services(AWS)中创建了一个新的Amazon EC2实例.我甚至添加了这样的SSH规则:

Port: 22  
Type: SSH  
Source: <My IP address>/32

我下载了.pem文件,使用将其转换为.ppk文件PuTTYGEN.然后我在PuTTY中添加了这样的主机名:

ec2-user@<public_DNS>

我选择了default settings,将.ppk文件添加到PuTTY,登录后出现此错误:

连故障排除链接都没有帮助我.
我也在系统日志中收到此错误:

如何通过PuTTY连接到我的Amazon EC2实例？