java.lang.IllegalStateException：在查詢執行過程中提供的參數列表中找不到查詢參數

我是JPA與Netbeans和EclipseLink合作的新手，我創建了一個實體管理器以及一個PK類，主類。java.lang.IllegalStateException：在查詢執行過程中提供的參數列表中找不到查詢參數

當我嘗試從NetBeans中

@NamedQuery(name = "Company.findUser", query = "SELECT c FROM Company c WHERE c.companyPK.user = :user") 
@NamedQuery(name = "Company.findPass", query = "SELECT c FROM Company c WHERE c.password = :password")

我笑臉相迎的錯誤使用上述

但

@NamedQuery(name = "Company.findAll", query = "SELECT c FROM Company c")

作品預生成的名稱，並顯示我的一切...... ...

公司：

@Entity 
@Table(name = "Company") 
@XmlRootElement 
@NamedQueries({ 
    @NamedQuery(name = "Company.findAll", query = "SELECT c FROM Company c"), 
    @NamedQuery(name = "Company.findUser", query = "SELECT c FROM Company c WHERE c.companyPK.user = :user"), 
    @NamedQuery(name = "Company.findPass", query = "SELECT c FROM Company c WHERE c.password = :password")}) 
public class Company implements Serializable { 
    private static final long serialVersionUID = 1L; 
    @EmbeddedId 
    protected CompanyPK companyPK; 
    @Column(name = "Password") 
    private String password;

CompanyPK：

@Basic(optional = false) 
@Column(name = "User") 
private String user;

AdminControl：

EntityManagerFactory emf = Persistence.createEntityManagerFactory("UploaderPU"); 
    EntityManager em = emf.createEntityManager(); 


    em.getTransaction().begin(); 
    Company c = new Company(new CompanyPK(userF.getText()),pass.getText()); 
    em.persist(c); 
    em.getTransaction().commit(); 


     // TypedQuery<Company> query = em.createNamedQuery("Company.findUser", Company.class); 
    Query q1 = em.createQuery("SELECT c FROM Company c WHERE c.companyPK.user = :user"); 
    System.out.println(q1.getSingleResult());

上面的代碼是錯誤的，但如果使用Company.find所有/「SELECT c從公司c「我將在我的數據庫中獲取所有數據。

我知道數據也存儲，因爲我每次查詢我的數據庫netbeans查看結果。

有趣的是，如果我把兩次相同的數據，即用戶=一個2x，我會得到一個錯誤，說主鍵是重複的等等等等。

所以我知道它可以讀取它，但爲什麼當它不是重複的時候出現錯誤？

完整的錯誤：

[EL Info]: 2014-09-26 19:18:10.995--ServerSession(1090396648)--EclipseLink, version: Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd 
[EL Info]: connection: 2014-09-26 19:18:14.249--ServerSession(1090396648)--file:/C:/Users/Konrad/Documents/NetBeansProjects/FB-Style-Page-Slide-Menu/Uploader/build/classes/_UploaderPU login successful 
Exception in thread "JavaFX Application Thread" java.lang.IllegalStateException: Query argument user not found in the list of parameters provided during query execution. 
    at org.eclipse.persistence.internal.jpa.QueryImpl.processParameters(QueryImpl.java:579) 
    at org.eclipse.persistence.internal.jpa.QueryImpl.executeReadQuery(QueryImpl.java:179) 
    at org.eclipse.persistence.internal.jpa.QueryImpl.getSingleResult(QueryImpl.java:517) 
    at org.eclipse.persistence.internal.jpa.EJBQueryImpl.getSingleResult(EJBQueryImpl.java:400) 
    at uploader.AdminControl$1.handle(AdminControl.java:100) 
    at uploader.AdminControl$1.handle(AdminControl.java:76) 
    at org.controlsfx.dialog.Dialog$7.handle(Dialog.java:1095) 
    at org.controlsfx.dialog.Dialog$7.handle(Dialog.java:1093) 
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191) 
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) 
    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49) 
    at javafx.event.Event.fireEvent(Event.java:198) 
    at javafx.scene.Node.fireEvent(Node.java:8216) 
    at javafx.scene.control.Button.fire(Button.java:185) 
    at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182) 
    at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96) 
    at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89) 
    at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218) 
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191) 
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) 
    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49) 
    at javafx.event.Event.fireEvent(Event.java:198) 
    at javafx.scene.Scene$MouseHandler.process(Scene.java:3724) 
    at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3452) 
    at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1728) 
    at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2461) 
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:348) 
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:273) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:382) 
    at com.sun.glass.ui.View.handleMouseEvent(View.java:553) 
    at com.sun.glass.ui.View.notifyMouse(View.java:925) 
    at com.sun.glass.ui.win.WinApplication._enterNestedEventLoopImpl(Native Method) 
    at com.sun.glass.ui.win.WinApplication._enterNestedEventLoop(WinApplication.java:129) 
    at com.sun.glass.ui.Application.enterNestedEventLoop(Application.java:513) 
    at com.sun.glass.ui.EventLoop.enter(EventLoop.java:107) 
    at com.sun.javafx.tk.quantum.QuantumToolkit.enterNestedEventLoop(QuantumToolkit.java:519) 
    at javafx.stage.Stage.showAndWait(Stage.java:462) 
    at org.controlsfx.dialog.HeavyweightDialog$1.showAndWait(HeavyweightDialog.java:135) 
    at org.controlsfx.dialog.HeavyweightDialog.show(HeavyweightDialog.java:278) 
    at org.controlsfx.dialog.Dialog.show(Dialog.java:321) 
    at uploader.AdminControl.addUser(AdminControl.java:209) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:483) 
    at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71) 
    at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:483) 
    at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275) 
    at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1759) 
    at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1645) 
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191) 
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) 
    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49) 
    at javafx.event.Event.fireEvent(Event.java:198) 
    at javafx.scene.Node.fireEvent(Node.java:8216) 
    at javafx.scene.control.Button.fire(Button.java:185) 
    at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182) 
    at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96) 
    at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89) 
    at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218) 
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191) 
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) 
    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54) 
    at javafx.event.Event.fireEvent(Event.java:198) 
    at javafx.scene.Scene$MouseHandler.process(Scene.java:3724) 
    at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3452) 
    at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1728) 
    at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2461) 
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:348) 
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:273) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:382) 
    at com.sun.glass.ui.View.handleMouseEvent(View.java:553) 
    at com.sun.glass.ui.View.notifyMouse(View.java:925) 
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) 
    at com.sun.glass.ui.win.WinApplication.lambda$null$141(WinApplication.java:102) 
    at com.sun.glass.ui.win.WinApplication$$Lambda$37/1274370218.run(Unknown Source) 
    at java.lang.Thread.run(Thread.java:745)

來源

2014-09-26 XaolingBao

在100 AdminResult線，您正在執行的命名查詢的一個（你的帖子沒有顯示它，但它可能是Company.findUser）。該查詢在JPQL中有一個參數:user。如果q是您查詢，您需要做的

q.setParameter("user", someValue);

分配在查詢執行時間的值到該參數。

另外，最好在一個查詢中查詢用戶名和密碼，並確保它返回一個命中。

來源

2014-09-27 00:03:43

對不起，我張貼這之前，我昏了過去，我知道我會忘記一些東西，我已經更新了「AdminControl」結束基本上這是什麼做的是創造一個新的用戶帳戶;然而從你最後一句似乎建議你談論的用戶登錄/認證的單個查詢還是......？基本上我會在這個新的acc創建中存儲大約3-4條信息到db中，所以我應該一起查詢它們嗎？謝謝。我會嘗試設置參數，但我認爲， begin（）; em.persist（c）; em.getTransaction（）。commit（）; 是什麼工程。 – XaolingBao 2014-09-27 12:52:13

這結束了工作，謝謝。我最初是在看http://www.objectdb.com/java/jpa/start/crud ，但發現http://www.objectdb.com/java/jpa/query/parameter，所以我會檢查更多，再次感謝。 – XaolingBao 2014-09-27 13:52:16

java.lang.IllegalStateException：在查詢執行過程中提供的參數列表中找不到查詢參數

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