但是它永远是 text/html; charset=UTF-8
输出图片，可以这样：
当然路径存在之类的判断你自己要做好，如果确定图片格式是jpeg，那么可以写死mime
应该是可以的吧
如果最后是通过yii框架默认的return渲染视图输出的，就是html头，因为header会覆盖。你尝试不用return，用echo
浏览器在跨域的时候会先发出一个preflight，如果改了header。然后服务器不允许改content-type
//统一response返回json格式
Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;
我是想统一返回json的，百度到你的问题，我这边解决了，顺便给你一些建议
请问 http://www.yiichina.com/assets/ 这个404 Forbidden怎么做到的
这个是服务器禁止访问目录，不是404页面吧。
http://www.yiichina.com/doc/guide/2.0/runtime-handling-errors 这种方式应该可以吧
这应该是404公共错误页面的配置问题，可以自定义404页面，然后配置服务器
这个是404页面
这不是 web server 之类的 自动抛出吗。
我的视图：
/view/ext/_form.php
<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
/* @var $this yii\web\View */
/* @var $model app\models\Ext */
/* @var $form yii\widgets\ActiveForm */
?>
<div class="ext-form">
<?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]); ?>
<?= $form->field($model, 'image1')->fileInput() ?>
<?= $form->field($model, 'image2')->fileInput(['maxlength' => true]) ?>
<?= $form->field($model, 'info')->textInput(['maxlength' => true]) ?>
<div class="form-group">
<?= Html::submitButton($model->isNewRecord ? '创建' : '更新', ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
</div>
<?php ActiveForm::end(); ?>
</div>
这是model
models/ext.php
<?php
namespace app\models;
use Yii;
use yii\web\UploadedFile;
/**
* This is the model class for table "ext".
*
* @property integer $id
* @property string $image1
* @property string $image2
* @property string $info
*/
class Ext extends \yii\db\ActiveRecord
{
/**
* @inheritdoc
*/
public static function tableName()
{
return 'ext';
}
/**
* @inheritdoc
*/
public function rules()
{
return [
[['image1', 'image2'], 'string', 'max' => 60],
[['image1', 'image2'], 'file', 'skipOnEmpty' => false, 'extensions' => 'png, jpg'],
[['info'], 'string', 'max' => 255],
];
}
/**
* @inheritdoc
*/
public function attributeLabels()
{
return [
'id' => 'ID',
'image1' => 'logo图片',
'image2' => '微信二维码图片',
'info' => '站点简介',
];
}
/**
* @return \yii\db\ActiveQuery
*/
public function upload()
{
if ($this->validate())
{
$randName=date("Y").date("m").date("d").date("H").date("i").date("s").rand(100, 999).'-'.md5(microtime()); //生成随机文件名
$uploadPath= 'uploads/' . $randName . '.' . $this->image1->extension; //设置保存路径， 为 backend\web\uploads
$this->image1->saveAs($uploadPath); //保存文件
return Url::to('app/web/'.$uploadPath,true); //返回文件的 url 路径，使用 Url 帮助类。
}
else
{
return false;
}
}
}
控制器：
controllers/Extcontroller.php
<?php
namespace app\controllers;
use Yii;
use app\models\Ext;
use app\models\ExtSearch;
use yii\web\Controller;
use yii\web\UploadedFile;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
class ExtController extends Controller
{
/**
* @inheritdoc
*/
public function behaviors()
{
return [
'verbs' => [
'class' => VerbFilter::className(),
'actions' => [
'delete' => ['POST'],
],
],
];
}
/**
* Lists all Ext models.
* @return mixed
*/
public function actionIndex()
{
$searchModel = new ExtSearch();
$dataProvider = $searchModel->search(Yii::$app->request->queryParams);
return $this->render('index', [
'searchModel' => $searchModel,
'dataProvider' => $dataProvider,
]);
}
/**
* Displays a single Ext model.
* @param integer $id
* @return mixed
*/
public function actionView($id)
{
......
}
/**
public function actionCreate()
{
$model = new Ext();
//$model->wb_logo = UploadedFile::getInstance($model, 'image1');
if ($model->load(Yii::$app->request->post()) ) {
//var_dump(Yii::$app->request->post());die;
$model->save();
return $this->redirect(['view', 'id' => $model->id]);
} else {
return $this->render('create', [
'model' => $model,
]);
}
}
public function actionUpdate($id)
{
$model = $this->findModel($id);
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->id]);
} else {
return $this->render('update', [
'model' => $model,
]);
}
}
protected function findModel($id)
{
if (($model = Ext::findOne($id)) !== null) {
return $model;
} else {
throw new NotFoundHttpException('The requested page does not exist.');
}
}
public function actionUpload()
{
$model = new Ext();
if (Yii::$app->request->isPost) {
$model->image1 = UploadedFile::getInstance($model, 'image1');
if ($model->upload()) {
// 文件上传成功
return;
}
}
return $this->render('upload', ['model' => $model]);
}
}
现在就是一直成功不了
[[‘image1’, ‘image2’], ‘string’, ‘max’ => 60],
[[‘image1’, ‘image2’], ‘string’, ‘max’ => 60],
yii2高级版公共变量在哪里设置？
方式挺多的，看你习惯吧，你可以在params.php或者params-local.php配置文件中，注意当然如果在这配置文件中配置，就得注意它的加载顺序，yii2按以下的顺序读取配置:
1、common/config/params.php
2、common/config/params-local.php
3、frontend/config/params.php
4、frontend/config/params-local.php
所以，如果你的公共变量前后台都公用，那你可以配置到common/config/params.php或common/config/params-local.php，如果是前台用的到那配置到frontend/config/params.php或frontend/config/params-local.php，后台用的到那配置到backend/config/params.php或backend/config/params-local.php中。
读取则是： echo Yii::$app->params[‘adminEmail’]; 表示读取配置文件中配置的adminEmail这个变量，按照上面的顺序读取，后面的配置文件会覆盖掉前面的配置文件定义的值。如果所有配置都读取不到，返回null。
还有，我个人的习惯是自己定义个常量类，然后定义静态的属性，使用的时候通过 “类::$属性” 来读取。
怎么用还是很灵活的，没有特别的要求。就看你的使用习惯
[
'attribute'=>'img',
'format' => ['raw',],
'value' => function($model){
return Html::img($model->img);
}
],
我想要让它变小一点,就修改成了
[
'attribute'=>'img',
'format' =>[
'image',
[
'height' =>50,
'width' => 100
]
],
'value' => function($model) {
return Html::img($model->img);
}
],
可是图片不显示了，怎么回事？
参数不正确
“微博图片”和“微信二维码”要做成选择图片上传的那种怎么实现啊？
图片上传，一般数据库直接存放图片的地址。yii2中，可以利用一些封装好的组件对图片进行处理。参考：http://t.cn/RVOUrZm
在model A ， afterSave（）函数中定义一个变量 $x，
怎样在model B 中引用$x
如果变量 $x 具有代表性意义的话，你可以在 model A 中声明一个属性。
然后在afterSave()中以变量 $x 为这个属性赋值;
接下来你就可以在model B 中
我想通过Html::a访问这个URL,一直获取不到URL的参数值，请问我的UrlManager中的rules该怎样修改？
你理解错了a的用法：你这个参数不是URL的参数，是a的参数哦；你改为：Html::a('点击about',['about','params'=>'about1','id'=>'about2']);Html::a('点击about',['about','params'=>'about1','id'=>'about2']);
sublime 缩进线
在哪里设置可以显示出来。
打开 Preferences -> Settings-Default
在里面搜索indent_guide该关键字，会找到两个结果
此时你如果设置成和我上面截图一样的的话，就会呈现下面的结果
你会看到两个红框中的白线一个“深”，一个“浅”，“深”是由于我的鼠标放在了那个函数上，这个效果是由
“indent_guide_options”: [“draw_normal”,”draw_active”],中的”draw_active”发挥的作用，如果你改为
“indent_guide_options”: [“draw_normal”]，那么呈现出来的都是“浅”的。
好了，若果有其他不太懂的再交流吧！
是有的但不明顯, 想要明顯的話
第一 : Indent Guide Color
第二 : Hide tab lines
你要的是这种效果吗？
有没有人遇到过 ubuntu 环境线的sb 缩进线出问题的情况。
目前是这样的 
这个线没有跟我设置的缩进tab（4个空格）匹配，导致代码折叠出问题了
在加载kartik\detail\DetailView时，开启ckeditor后，出现下面异常：
Invalid Parameter – yii\base\InvalidParamException
Trying to copy a directory to itself or a subdirectory.
看了下，问题可能出在下面的第2条：
BaseFileHelper::copyDirectory('/Users/qijiaona/var/www/intel/backend/web/assets', '/Users/qijiaona/var/www/intel/backend/web/assets/da31e3d5');
关闭ckeditor插件后就可以正常运行了。
求解决。
1. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/helpers/BaseFileHelper.php at line 260
2. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/web/AssetManager.php at line 542 – yii\helpers\BaseFileHelper::copyDirectory('/Users/qijiaona/var/www/intel/ba...', '/Users/qijiaona/var/www/intel/ba...', ['dirMode' => 509, 'fileMode' => null, 'beforeCopy' => Closure])
3. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/web/AssetManager.php at line 458 – yii\web\AssetManager::publishDirectory('/Users/qijiaona/var/www/intel/ba...', [])
4. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/web/AssetBundle.php at line 183 – yii\web\AssetManager::publish('assets', [])
5. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/web/AssetManager.php at line 266 – yii\web\AssetBundle::publish(yii\web\AssetManager)
6. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/web/AssetManager.php at line 237 – yii\web\AssetManager::loadBundle('dosamigos\ckeditor\CKEditorWidge...', [], true)
7. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/web/View.php at line 284 – yii\web\AssetManager::getBundle('dosamigos\ckeditor\CKEditorWidge...')
8. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/web/AssetBundle.php at line 123 – yii\web\View::registerAssetBundle('dosamigos\ckeditor\CKEditorWidge...')
9. in /Users/qijiaona/var/www/intel/vendor/2amigos/yii2-ckeditor-widget/src/CKEditor.php at line 57 – yii\web\AssetBundle::register(yii\web\View)
10. in /Users/qijiaona/var/www/intel/vendor/2amigos/yii2-ckeditor-widget/src/CKEditor.php at line 44 – dosamigos\ckeditor\CKEditor::registerPlugin()
11. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/base/Widget.php at line 102 – dosamigos\ckeditor\CKEditor::run()
12. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/widgets/ActiveField.php at line 703 – yii\base\Widget::widget(['preset' => 'full', 'clientOptions' => ['allowedContent' => true, 'extraPlugins' => 'lineheight,uploadimage', 'line_height' => '1;1.2;1.5;2;2.5;3', 'imageUploadUrl' => '/accelerator/upload'], 'model' => common\models\Accelerator, 'attribute' => 'acc_desc_long', ...])
13. in /Users/qijiaona/var/www/intel/vendor/kartik-v/yii2-detail-view/DetailView.php at line 873 – yii\widgets\ActiveField::widget('\dosamigos\ckeditor\CKEditor', ['preset' => 'full', 'clientOptions' => ['allowedContent' => true, 'extraPlugins' => 'lineheight,uploadimage', 'line_height' => '1;1.2;1.5;2;2.5;3', 'imageUploadUrl' => '/accelerator/upload']])
14. in /Users/qijiaona/var/www/intel/vendor/kartik-v/yii2-detail-view/DetailView.php at line 785 – kartik\detail\DetailView::renderFormAttribute(['attribute' => 'acc_desc_long', 'format' => 'raw', 'type' => 'widget', 'widgetOptions' => ['class' => '\dosamigos\ckeditor\CKEditor', 'preset' => 'full', 'clientOptions' => ['allowedContent' => true, 'extraPlugins' => 'lineheight,uploadimage', 'line_height' => '1;1.2;1.5;2;2.5;3', 'imageUploadUrl' => '/accelerator/upload']], ...])
15. in /Users/qijiaona/var/www/intel/vendor/kartik-v/yii2-detail-view/DetailView.php at line 745 – kartik\detail\DetailView::renderAttributeItem(['attribute' => 'acc_desc_long', 'format' => 'raw', 'type' => 'widget', 'widgetOptions' => ['class' => '\dosamigos\ckeditor\CKEditor', 'preset' => 'full', 'clientOptions' => ['allowedContent' => true, 'extraPlugins' => 'lineheight,uploadimage', 'line_height' => '1;1.2;1.5;2;2.5;3', 'imageUploadUrl' => '/accelerator/upload']], ...])
16. in /Users/qijiaona/var/www/intel/vendor/kartik-v/yii2-detail-view/DetailView.php at line 718 – kartik\detail\DetailView::renderAttributeRow(['attribute' => 'acc_desc_long', 'format' => 'raw', 'type' => 'widget', 'widgetOptions' => ['class' => '\dosamigos\ckeditor\CKEditor', 'preset' => 'full', 'clientOptions' => ['allowedContent' => true, 'extraPlugins' => 'lineheight,uploadimage', 'line_height' => '1;1.2;1.5;2;2.5;3', 'imageUploadUrl' => '/accelerator/upload']], ...])
17. in /Users/qijiaona/var/www/intel/vendor/kartik-v/yii2-detail-view/DetailView.php at line 611 – kartik\detail\DetailView::renderDetailView()
18. in /Users/qijiaona/var/www/intel/vendor/kartik-v/yii2-detail-view/DetailView.php at line 548 – kartik\detail\DetailView::runWidget()
19. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/base/Widget.php at line 102 – kartik\detail\DetailView::run()
20. in /Users/qijiaona/var/www/intel/backend/views/accelerator/view.php at line 176 – yii\base\Widget::widget(['model' => common\models\Accelerator, 'mode' => 'view', 'formOptions' => ['options' => ['enctype' => 'multipart/form-data']], 'panel' => ['heading' => '众创空间详情', 'type' => 'primary'], ...])
21. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/base/View.php at line 326 – require('/Users/qijiaona/var/www/intel/ba...')
22. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/base/View.php at line 248 – yii\base\View::renderPhpFile('/Users/qijiaona/var/www/intel/ba...', ['model' => common\models\Accelerator, 'dataProvider' => yii\data\ActiveDataProvider, 'dpMentor' => yii\data\ActiveDataProvider, 'dpInvestor' => yii\data\ActiveDataProvider, ...])
23. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/base/View.php at line 150 – yii\base\View::renderFile('/Users/qijiaona/var/www/intel/ba...', ['model' => common\models\Accelerator, 'dataProvider' => yii\data\ActiveDataProvider, 'dpMentor' => yii\data\ActiveDataProvider, 'dpInvestor' => yii\data\ActiveDataProvider, ...], backend\controllers\AcceleratorController)
24. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/base/Controller.php at line 378 – yii\base\View::render('view', ['model' => common\models\Accelerator, 'dataProvider' => yii\data\ActiveDataProvider, 'dpMentor' => yii\data\ActiveDataProvider, 'dpInvestor' => yii\data\ActiveDataProvider, ...], backend\controllers\AcceleratorController)
25. in /Users/qijiaona/var/www/intel/backend/controllers/AcceleratorController.php at line 189 – yii\base\Controller::render('view', ['model' => common\models\Accelerator, 'dataProvider' => yii\data\ActiveDataProvider, 'dpMentor' => yii\data\ActiveDataProvider, 'dpInvestor' => yii\data\ActiveDataProvider, ...])
26. backend\controllers\AcceleratorController::actionView('58')
27. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/base/InlineAction.php at line 55 – call_user_func_array([backend\controllers\AcceleratorController, 'actionView'], ['58'])
28. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/base/Controller.php at line 154 – yii\base\InlineAction::runWithParams(['r' => 'accelerator/view', 'id' => '58'])
29. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/base/Module.php at line 454 – yii\base\Controller::runAction('view', ['r' => 'accelerator/view', 'id' => '58'])
30. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/web/Application.php at line 100 – yii\base\Module::runAction('accelerator/view', ['r' => 'accelerator/view', 'id' => '58'])
31. in /Users/qijiaona/var/www/intel/vendor/yiisoft/yii2/base/Application.php at line 375 – yii\web\Application::handleRequest(yii\web\Request)
32. in /Users/qijiaona/var/www/intel/backend/web/index.php at line 18 – yii\base\Application::run()
ps: 我看到之前有人也遇到过类似的问题，比如sgmengfault上的这个yii2 Trying to copy a directory to itself or a subdirectory，还有yiichina上的这个创建表单报错 ，但这两个帖子都与我遇到的情况不同，求解决。
我的AppAsset类配置
public $basePath = '@webroot';
public $baseUrl = '@web';
public $css = [
'css/site.css',
];
public $js = [
];
public $depends = [
'yii\web\YiiAsset',
'yii\bootstrap\BootstrapAsset',
];
应该改成这样：
修改yii2-ckeditor-widget文件夹下面的CKEditorWidgetAsset.php文件
修改
为