非常感谢您的帮助。
我使用的是Yii2。我想使用 REST POST 请求将单词列表发送到服务器，服务器将翻译这些单词并将其发回。
当我发送 POST 请求时，我在浏览器 JavaScript 控制台中收到以下消息： 命名为“错误请求” 消息“缺少必需的参数：单词” 代码0 状态 400 输入“yii\web\BadRequestHttpException”
我使用以下命令运行 PHP：php yiiserve。
JavaScript
window.onload = (event) => {
document.querySelector("#translate").addEventListener("click", translate)
}
function translate() {
const textarea = document.getElementById("words");
const words = textarea.value.replace(/\r\n/g, "\n").split("\n");
post('http://localhost:8080/index.php/rest-translation/translate', words)
}
async function post(url, words) {
console.log(words)
let options = {
method: "POST",
body: JSON.stringify({words: words})
}
const response = await fetch(url, options)
if (response.ok) {
response.json()
}
}
这是视图：
<?php
use yii\helpers\Html;
use yii\widgets\DetailView;
use yii\widgets\ActiveForm;
use app\assets\TranslationAsset;
/** @var yii\web\View $this */
/** @var app\models\Book $book */
/** @var app\models\BookSection $section */
$this->title = $section->title;
$this->params['breadcrumbs'][] = ['label' => Yii::t('app', 'Section'), 'url' => ['book']];
$this->params['breadcrumbs'][] = $this->title;
\yii\web\YiiAsset::register($this);
?>
<div class="translate-section">
<h1><?= Html::encode($this->title) ?></h1>
<?= DetailView::widget([
'model' => $book,
'attributes' => [
'id',
'name',
],
]) ?>
<?= DetailView::widget([
'model' => $section,
'attributes' => [
'title',
],
]) ?>
<div>
<?php $form = ActiveForm::begin(); ?>
<table>
<tr>
<td><textarea id="words"></textarea></td>
<td><textarea id="first-translation"></textarea></td>
<td><textarea id="second-translation"></textarea></td>
</tr>
</table>
<button id="translate" type="button">Translate</button>
<div class="form-group">
<?= Html::submitButton(Yii::t('app', 'Save'), ['class' => 'btn btn-success']) ?>
</div>
<?php ActiveForm::end(); ?>
</div>
<?php TranslationAsset::register($this) ?>
</div>
这是 REST 控制器：
<?php
namespace app\controllers;
use app\models\Translation;
use yii\rest\ActiveController;
class RestTranslationController extends ActiveController
{
public $modelClass = 'app\models\Translation';
public function actionTranslate($words)
{
return Translation::translate($words);
}
public function behaviors()
{
$behaviors = parent::behaviors();
// remove authentication filter
$auth = $behaviors['authenticator'];
unset($behaviors['authenticator']);
// add CORS filter
$behaviors['corsFilter'] = [
'class' => \yii\filters\Cors::class,
];
// re-add authentication filter
$behaviors['authenticator'] = $auth;
// avoid authentication on CORS-pre-flight requests (HTTP OPTIONS method)
$behaviors['authenticator']['except'] = ['options'];
return $behaviors;
}
}
这是模型：
<?php
namespace app\models;
use Yii;
/**
* This is the model class for table "translation".
*
* @property int $id
* @property int $sourceEntryId
* @property string $languageId
* @property string $typeId
* @property int $translationEntryId
*/
class Translation extends \yii\db\ActiveRecord
{
/**
* {@inheritdoc}
*/
public static function tableName()
{
return 'translation';
}
/**
* {@inheritdoc}
*/
public function rules()
{
return [
[['sourceEntryId', 'languageId', 'typeId', 'translationEntryId'], 'required'],
[['sourceEntryId', 'translationEntryId'], 'integer'],
[['languageId', 'typeId'], 'string', 'max' => 10],
];
}
/**
* {@inheritdoc}
*/
public function attributeLabels()
{
return [
'id' => Yii::t('app', 'ID'),
'sourceEntryId' => Yii::t('app', 'Source Entry ID'),
'languageId' => Yii::t('app', 'Language ID'),
'typeId' => Yii::t('app', 'Type ID'),
'translationEntryId' => Yii::t('app', 'Translation Entry ID'),
];
}
public static function translate($words)
{
//<TO DO>:Find and return the translation.
}
/**
* {@inheritdoc}
* @return TranslationQuery the active query used by this AR class.
*/
public static function find()
{
return new TranslationQuery(get_called_class());
}
}
配置/web.php
<?php
$params = require __DIR__ . '/params.php';
$db = require __DIR__ . '/db.php';
$config = [
'id' => 'basic',
'basePath' => dirname(__DIR__),
'bootstrap' => ['log'],
'aliases' => [
'@bower' => '@vendor/bower-asset',
'@npm' => '@vendor/npm-asset',
],
'components' => [
'request' => [
// !!! insert a secret key in the following (if it is empty) - this is required by cookie validation
'cookieValidationKey' => 'xxxxxxxx',
'parsers' => [
'application/json' => 'yii\web\JsonParser',
]
],
/*'response' => [
'format' => yii\web\Response::FORMAT_JSON,
'charset' => 'UTF-8',
// ...
],*/
'cache' => [
'class' => 'yii\caching\FileCache',
],
'user' => [
'identityClass' => 'app\models\User',
'enableAutoLogin' => true,
],
'errorHandler' => [
'errorAction' => 'site/error',
],
'mailer' => [
'class' => \yii\symfonymailer\Mailer::class,
'viewPath' => '@app/mail',
// send all mails to a file by default.
'useFileTransport' => true,
],
'log' => [
'traceLevel' => YII_DEBUG ? 3 : 0,
'targets' => [
[
'class' => 'yii\log\FileTarget',
'levels' => ['error', 'warning'],
],
],
],
'db' => $db,
'urlManager' => [
'enablePrettyUrl' => true,
'showScriptName' => true,
'enableStrictParsing' => false
]
],
'params' => $params,
];
if (YII_ENV_DEV) {
// configuration adjustments for 'dev' environment
$config['bootstrap'][] = 'debug';
$config['modules']['debug'] = [
'class' => 'yii\debug\Module',
// uncomment the following to add your IP if you are not connecting from localhost.
//'allowedIPs' => ['127.0.0.1', '::1'],
];
$config['bootstrap'][] = 'gii';
$config['modules']['gii'] = [
'class' => 'yii\gii\Module',
// uncomment the following to add your IP if you are not connecting from localhost.
//'allowedIPs' => ['127.0.0.1', '::1'],
];
}
return $config;
我的环境： PHP 8.1.2-1ubuntu2.14 (cli)（构建时间：2023 年 8 月 18 日 11:41:11）（NTS） Zend 引擎 v4.1.2 与 Zend OPcache v8.1.2-1ubuntu2.14 与 Xdebug v3.2.1 Yii2 (2.0.48.1)
非常感谢您的帮助。
我用谷歌搜索解决方案，但没有找到任何东西。
回答这个..
“错误请求（#400）：缺少必需的参数：单词”
是的，你正在发送
words当我检查您的控制器
RestTranslationControlleractionTranslate($words)words这就是我得出的结论，这是导致您出现错误的原因。 你能修改成这样吗？
public function actionTranslate()
{
$words = Yii::$app->request->post('words');
return Translation::translate($words);
}
我们在这里使用
Yii::$app->request->post('words')