Question

我对Doctrine 2.2有一个奇怪的问题。我尝试在数据库中插入一个新条目，我遇到了以下问题。它是什么意思，我该如何解决？

Fatal error: Uncaught exception 'Doctrine\ORM\Mapping\MappingException' with message 'Class Model\User is not a valid entity or mapped super class.' in C:\xampp\htdocs\www\DoctrineExplained\DoctrineORM\Doctrine\ORM\Mapping\MappingException.php:147
Stack trace: 
#0 C:\xampp\htdocs\www\DoctrineExplained\DoctrineORM\Doctrine\ORM\Mapping\Driver\AnnotationDriver.php(166): Doctrine\ORM\Mapping\MappingException::classIsNotAValidEntityOrMappedSuperClass('Model\User')
#1 C:\xampp\htdocs\www\DoctrineExplained\DoctrineORM\Doctrine\ORM\Mapping\ClassMetadataFactory.php(293): Doctrine\ORM\Mapping\Driver\AnnotationDriver->loadMetadataForClass('Model\User', Object(Doctrine\ORM\Mapping\ClassMetadata))
#2 C:\xampp\htdocs\www\DoctrineExplained\DoctrineORM\Doctrine\ORM\Mapping\ClassMetadataFactory.php(178): Doctrine\ORM\Mapping\ClassMetadataFactory->loadMetadata('Model\User')
#3 C:\xampp\htdocs\www\DoctrineExplained\DoctrineORM\Doctrine\ORM\EntityManager.php(271): Doctrine\ORM\Mapping\ClassMetadataFactory->getMe in C:\xampp\htdocs\www\DoctrineExplained\DoctrineORM\Doctrine\ORM\Mapping\MappingException.php on line 147

我的项目目录结构如下：

./测试

DoctrineORM /

DoctrineORM / bin中

DoctrineORM / bin中/学说

模型/

模型/ user.php的

test.php的

最后，这些是 test.php 和 Model / User.php

中的代码

--- Model/User.php ---
<?php
//    Model File model/User.php 
namespace Model;

/** @Entity @Table(name="users") */
class User
{
    /**
     * @Id @Column(type="integer")
     * @GeneratedValue(strategy="AUTO")
     */
    public $id;


   /** @Column(type="string", length=50) */
    public $name;


  /** @Column(type="integer", length=50) */
    public $age;
}
?>

最后的代码位于 test.php

中

<?php
////    test.php


require 'DoctrineORM/Doctrine/Common/ClassLoader.php';
$classLoader = new \Doctrine\Common\ClassLoader('Doctrine', 'DoctrineORM');
$classLoader->register(); 

$classloader = new \Doctrine\Common\ClassLoader('model', __DIR__);
$classloader->register();

$config = new \Doctrine\ORM\Configuration();
$cache = new \Doctrine\Common\Cache\ArrayCache();
$config->setMetadataCacheImpl($cache);
$config->setQueryCacheImpl($cache);

$driverImpl = $config->newDefaultAnnotationDriver('model');
$config->setMetadataDriverImpl($driverImpl);
$config->setProxyDir('proxies');
$config->setProxyNamespace('proxies');

$config->setAutoGenerateProxyClasses(true);
$config->getAutoGenerateProxyClasses();

$connectionOptions = array(
    'driver' => 'pdo_mysql',
    'dbname' => 'test',
    'user' => 'root',
    'password' => '0000'
);

$em = \Doctrine\ORM\EntityManager::create($connectionOptions, $config);



//    insert a new User to DB
$user = new model\User();
$user->name = 'lorem impum user';
$user->age = 55;
$em->persist($user);
$em->flush();

Answer 1

即使在Windows上，区分大小写也很重要。使用＆＃39;模型＆＃39;取代＆＃39; model＆＃39;在你的代码中。

添加＆＃39;使用型号/用户;＆＃39;在测试代码的顶部，然后使用＆＃39; $ user = new User（）＆＃39 ;;这将验证您的类加载器是否正常工作。

并且花时间（正如Jani建议的那样）弄清楚如何从命令行运行这些东西。你的发展会更快。

在数据库中插入新条目时，Doctrine 2.2上未被捕获的异常

1 个答案: