我有这个错误:
2020-11-16 22:36:09.313 ERROR 19428 --- [nio-8080-exec-5] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.orm.jpa.JpaSystemException: collection was evicted; nested exception is org.hibernate.HibernateException: collection was evicted] with root cause
org.hibernate.HibernateException: collection was evicted
at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:43) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:102) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
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我创建一个 API REST 应用程序,我的实体具有以下组成:
public class Label {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long Id;
@OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL, mappedBy = "label")
private Set<Release> releases;
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public class Release …Run Code Online (Sandbox Code Playgroud) 伙计们,我阅读了在 laravel 中上传文件的文档......但我不明白(我是初学者)这是我的 image.blade.php
{{Form::open(['url'=>'administrator/store ', 'files' => true])}}
{!!Form::file('image') !! }
{!! Form::submit('next')!!}
{{Form::close()}}
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管理员控制器
use Storage;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
public function store(Request $request) {
Storage::put($request->image, 'test') ;
}
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我不明白我将在函数中放入什么..... 请帮帮我... 问候!