花了几个小时后，我终于决定发布我的问题：
作为 WebServices 的新手，在决定使用 netbeans 和 Glassfish 进行更复杂的测试后，我做了很多教程。...但最后我碰壁了:-)
我有 Netbeans IDE 创建的简单类：
*********** My Entity ******
@Entity
@Table(name = "user")
@XmlRootElement
@NamedQueries({
@NamedQuery(name = "User.findAll", query = "SELECT u FROM User u"),
@NamedQuery(name = "User.findByUserId", query = "SELECT u FROM User u WHERE u.userId = :userId"),
@NamedQuery(name = "User.findByLoginName", query = "SELECT u FROM User u WHERE u.loginName = :loginName"),
@NamedQuery(name = "User.findByEmail", query = "SELECT u FROM User u WHERE u.email = :email"),
@NamedQuery(name = "User.findByOpenID", query = "SELECT u FROM User u WHERE u.openID = :openID"),
@NamedQuery(name = "User.findByCreated", query = "SELECT u FROM User u WHERE u.created = :created"),
@NamedQuery(name = "User.findByStatus", query = "SELECT u FROM User u WHERE u.status = :status")})
public class User implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Basic(optional = false)
@Column(name = "userId")
private Long userId;
@Column(name = "loginName")
private String loginName;
@Column(name = "email")
private String email;
@Column(name = "openID")
private String openID;
@Column(name = "created")
@Temporal(TemporalType.TIMESTAMP)
private Date created;
@Column(name = "status")
private String status;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "useruserId")
private Collection<Userextras> userextrasCollection;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "useruserId")
private Collection<Watch> watchCollection;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "useruserId")
private Collection<Billinginfo> billinginfoCollection;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "useruserId")
private Collection<Good> goodCollection;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "useruserId")
private Collection<Purchase> purchaseCollection;
public User() {
}
public User(Long userId) {
this.userId = userId;
}
public Long getUserId() {
return userId;
}
public void setUserId(Long userId) {
this.userId = userId;
}
public String getLoginName() {
return loginName;
}
public void setLoginName(String loginName) {
this.loginName = loginName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getOpenID() {
return openID;
}
public void setOpenID(String openID) {
this.openID = openID;
}
public Date getCreated() {
return created;
}
public void setCreated(Date created) {
this.created = created;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
@XmlTransient
public Collection<Userextras> getUserextrasCollection() {
return userextrasCollection;
}
public void setUserextrasCollection(Collection<Userextras> userextrasCollection) {
this.userextrasCollection = userextrasCollection;
}
@XmlTransient
public Collection<Watch> getWatchCollection() {
return watchCollection;
}
public void setWatchCollection(Collection<Watch> watchCollection) {
this.watchCollection = watchCollection;
}
@XmlTransient
public Collection<Billinginfo> getBillinginfoCollection() {
return billinginfoCollection;
}
public void setBillinginfoCollection(Collection<Billinginfo> billinginfoCollection) {
this.billinginfoCollection = billinginfoCollection;
}
@XmlTransient
public Collection<Good> getGoodCollection() {
return goodCollection;
}
public void setGoodCollection(Collection<Good> goodCollection) {
this.goodCollection = goodCollection;
}
@XmlTransient
public Collection<Purchase> getPurchaseCollection() {
return purchaseCollection;
}
public void setPurchaseCollection(Collection<Purchase> purchaseCollection) {
this.purchaseCollection = purchaseCollection;
}
@Override
public int hashCode() {
int hash = 0;
hash += (userId != null ? userId.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof User)) {
return false;
}
User other = (User) object;
if ((this.userId == null && other.userId != null) || (this.userId != null && !this.userId.equals(other.userId))) {
return false;
}
return true;
}
}
****** My EJB facade that implements Abstract facade. Created from Entity class *******
@Stateless
public class UserFacade extends AbstractFacade<User> implements UserFacadeRemote {
@PersistenceContext(unitName = "AppEE-ejbPU")
private EntityManager em;
@Override
protected EntityManager getEntityManager() {
return em;
}
public UserFacade() {
super(User.class);
}
}
************* Remote interface create along with EJBs ****
@Remote
public interface UserFacadeRemote {
void create(User user);
void edit(User user);
void remove(User user);
User find(Object id);
List<User> findAll();
List<User> findRange(int[] range);
int count();
}
******* A web service Created from EJB *******
@WebService(serviceName = "UserService")
@Stateless()
public class UserService {
@EJB
private UserFacadeRemote ejbRef;// Add business logic below.
@WebMethod(operationName = "create")
@Oneway
public void create(@WebParam(name = "user") User user) {
System.out.println("User received WS:" + user); **<<-- user is null @ this point**
ejbRef.create(user); **<<--exception is thrown here**
}
@WebMethod(operationName = "edit")
@Oneway
public void edit(@WebParam(name = "user") User user) {
ejbRef.edit(user);
}
@WebMethod(operationName = "remove")
@Oneway
public void remove(@WebParam(name = "user") User user) {
ejbRef.remove(user);
}
@WebMethod(operationName = "find")
public User find(@WebParam(name = "id") Object id) {
return ejbRef.find(id);
}
@WebMethod(operationName = "findAll")
public List<User> findAll() {
return ejbRef.findAll();
}
@WebMethod(operationName = "findRange")
public List<User> findRange(@WebParam(name = "range") int[] range) {
return ejbRef.findRange(range);
}
@WebMethod(operationName = "count")
public int count() {
return ejbRef.count();
}
}
**** And Finally A Very very simple WS Desktop Client *****
public static void main(String[] args) {
System.out.println("Count" + count()); // <<<- works great!
User newUser = new User();
newUser.setLoginName("Dummy login WS");
newUser.setStatus("WS");
**create(newUser); // <<<----Causes the exception**
newUser = find(new Long(1L));
System.out.println("Find User 1: " + newUser.getLoginName()); // <<<- works great!
System.out.println("Done..");
}
private static int count() {
com.wixia.webservices.UserService_Service service = new com.wixia.webservices.UserService_Service();
com.wixia.webservices.UserService port = service.getUserServicePort();
return port.count();
}
private static void create(com.wixia.webservices.User user) {
com.wixia.webservices.UserService_Service service = new com.wixia.webservices.UserService_Service();
com.wixia.webservices.UserService port = service.getUserServicePort();
port.create(user);
}
private static User find(java.lang.Object id) {
com.wixia.webservices.UserService_Service service = new com.wixia.webservices.UserService_Service();
com.wixia.webservices.UserService port = service.getUserServicePort();
return port.find(id);
}
}
********** Relevant part of the stacktrace ***********
WARNING: EJB5184:A system exception occurred during an invocation on EJB UserFacade, method: public void com.wixia.beans.entities.UserFacade.create(com.wixia.model.entities.User)
WARNING: javax.ejb.TransactionRolledbackLocalException: Exception thrown from bean
at com.sun.ejb.containers.EJBContainerTransactionManager.checkExceptionClientTx(EJBContainerTransactionManager.java:662)
at com.sun.ejb.containers.EJBContainerTransactionManager.postInvokeTx(EJBContainerTransactionManager.java:507)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4475)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2009)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1979)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:212)
at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:79)
at com.sun.proxy.$Proxy532.create(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:239)
at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:150)
at com.sun.corba.ee.impl.presentation.rmi.codegen.CodegenStubBase.invoke(CodegenStubBase.java:226)
at com.wixia.beans.entities.__UserFacadeRemote_Remote_DynamicStub.create(com/wixia/beans/entities/__UserFacadeRemote_Remote_DynamicStub.java)
at com.wixia.beans.entities._UserFacadeRemote_Wrapper.create(com/wixia/beans/entities/_UserFacadeRemote_Wrapper.java)
at com.wixia.webservices.UserService.create(UserService.java:32)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4695)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:630)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:55)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4667)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4655)
at com.sun.ejb.containers.WebServiceInvocationHandler.invoke(WebServiceInvocationHandler.java:193)
at com.sun.proxy.$Proxy533.create(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.glassfish.webservices.InvokerImpl.invoke(InvokerImpl.java:82)
at org.glassfish.webservices.EjbInvokerImpl.invoke(EjbInvokerImpl.java:82)
at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:149)
at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:88)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:1136)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:1050)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:1019)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:877)
at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:136)
at org.glassfish.webservices.MonitoringPipe.process(MonitoringPipe.java:142)
at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:119)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:1136)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:1050)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:1019)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:877)
at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:136)
at com.sun.enterprise.security.webservices.CommonServerSecurityPipe.processRequest(CommonServerSecurityPipe.java:210)
at com.sun.enterprise.security.webservices.CommonServerSecurityPipe.process(CommonServerSecurityPipe.java:142)
at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:119)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:1136)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:1050)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:1019)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:877)
at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:420)
at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:687)
at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:266)
at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:169)
at org.glassfish.webservices.Ejb3MessageDispatcher.handlePost(Ejb3MessageDispatcher.java:110)
at org.glassfish.webservices.Ejb3MessageDispatcher.invoke(Ejb3MessageDispatcher.java:80)
at org.glassfish.webservices.EjbWebServiceServlet.dispatchToEjbEndpoint(EjbWebServiceServlet.java:203)
at org.glassfish.webservices.EjbWebServiceServlet.service(EjbWebServiceServlet.java:146)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.glassfish.grizzly.servlet.ServletHandler.doServletService(ServletHandler.java:242)
at org.glassfish.grizzly.servlet.ServletHandler.service(ServletHandler.java:193)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:246)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.IllegalArgumentException: Object: null is not a known entity type.
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:493)
at com.sun.enterprise.container.common.impl.EntityManagerWrapper.persist(EntityManagerWrapper.java:287)
at com.wixia.beans.entities.AbstractFacade.create(AbstractFacade.java:25)
at com.wixia.beans.entities.UserFacade.create(UserFacade.java:17)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4695)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:630)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:46)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4667)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4655)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:205)
... 99 more
** * ** * ***问题** * ** * ** * ** * **
当我调用 create 方法时，接收到的用户为空！使用：Glassfish 4.0 MySQL 5.6.13
希望我说清楚了，任何人都可以帮助我了解发生了什么。
谢谢！
何塞