我目前正在开发一个带有3个模块的Maven项目的应用程序。这三个模块是住宿，用户和反馈。在反馈表中，我有2个FK（一个来自用户，另一个来自住宿）。这是feedbackEntity类：
@Entity
@Table(name = "feedback")
public class FeedbackEntity {
private int feedbackId;
private String reviewTitle;
private String reviewText;
private Date reviewDate;
private UserEntity userEntity;
private int overallRating;
private AccommodationEntity accomodationEntity;
private List<FeedbackDetailEntity> feedbackDetailEntity;
public FeedbackEntity(int feedbackId, String reviewTitle, String reviewText, Date reviewDate,
int overallRating) {
super();
this.feedbackId = feedbackId;
this.reviewTitle = reviewTitle;
this.reviewText = reviewText;
this.reviewDate = reviewDate;
this.overallRating = overallRating;
}
public FeedbackEntity(FeedbackPojo feedbackPojo) {
this(feedbackPojo.getFeedbackId(), feedbackPojo.getReviewTitle(),
feedbackPojo.getReviewText(), feedbackPojo.getReviewDate(),
feedbackPojo.getOverallRating());
}
public FeedbackEntity() {
}
@ManyToOne(optional = false, targetEntity = AccommodationEntity.class)
@JoinColumn(name = "accomodation_id")
public AccommodationEntity getAccomodationEntity() {
return accomodationEntity;
}
public void setAccomodationEntity(AccommodationEntity accomodationEntity) {
this.accomodationEntity = accomodationEntity;
}
@ManyToOne(optional = false, targetEntity= UserEntity.class)
@JoinColumn(name = "user_id")
public UserEntity getUserEntity() {
return userEntity;
}
public void setUserEntity(UserEntity userEntity) {
this.userEntity = userEntity;
}
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "feedback_id")
public int getFeedbackId() {
return feedbackId;
}
public void setFeedbackId(int feedbackId) {
this.feedbackId = feedbackId;
}
@Column(name = "review_title")
public String getReviewTitle() {
return reviewTitle;
}
public void setReviewTitle(String reviewTitle) {
this.reviewTitle = reviewTitle;
}
@Column(name = "review_text")
public String getReviewText() {
return reviewText;
}
public void setReviewText(String reviewText) {
this.reviewText = reviewText;
}
@Column(name = "review_date")
public Date getReviewDate() {
return reviewDate;
}
public void setReviewDate(Date reviewDate) {
this.reviewDate = reviewDate;
}
@Column(name = "overall_rating")
public int getOverallRating() {
return overallRating;
}
public void setOverallRating(int overallRating) {
this.overallRating = overallRating;
}
@OneToMany(mappedBy="feedbackEntity", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
public List<FeedbackDetailEntity> getFeedbackDetail() {
return feedbackDetailEntity;
}
public void setFeedbackDetail(List<FeedbackDetailEntity> feedbackDetailEntity) {
this.feedbackDetailEntity = feedbackDetailEntity;
}
public FeedbackPojo toFeedbackPojo() {
return new FeedbackPojo(feedbackId, reviewTitle, reviewText, reviewDate, overallRating);
}
}
这是UserEntity类：
@Entity
@Table(name = "user")
public class UserEntity {
private int userId;
private String username;
private String name;
private String surname;
private String email;
public UserEntity(int user_id, String username, String name, String surname, String email) {
super();
this.userId = user_id;
this.username = username;
this.name = name;
this.surname = surname;
this.email = email;
}
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "user_id")
public int getUserId() {
return userId;
}
public void setUserId(int userId) {
this.userId = userId;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSurname() {
return surname;
}
public void setSurname(String surname) {
this.surname = surname;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
这是AccommodationEntity类：
@Entity
@Table(name = "accommodation")
public class AccommodationEntity {
private long accommodationId;
private String name;
private String type;
private String description;
private String country;
private String city;
private String adress;
private byte[] image;
private List<AccommodationDetailEntity> accommodationDetailEntity;
public AccommodationEntity(long accomodation_id, String name, String type, String description,
String country, String city, String adress, byte[] image) {
super();
this.accommodationId = accomodation_id;
this.name = name;
this.type = type;
this.description = description;
this.country = country;
this.city = city;
this.adress = adress;
this.image = image;
}
public AccommodationEntity() {
}
public AccommodationEntity(AccommodationPojo accommodationPojo) {
this(accommodationPojo.getAccommodationId(), accommodationPojo.getName(),
accommodationPojo.getType(), accommodationPojo.getDescription(),
accommodationPojo.getCountry(), accommodationPojo.getCity(),
accommodationPojo.getAdress(), accommodationPojo.getImage());
}
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "accommodation_id")
public long getAccommodationId() {
return accommodationId;
}
public void setAccommodationId(long accommodationId) {
this.accommodationId = accommodationId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getAdress() {
return adress;
}
public void setAdress(String adress) {
this.adress = adress;
}
@Column(columnDefinition = "BLOB")
public byte[] getImage() {
return image;
}
public void setImage(byte[] image) {
this.image = image;
}
public AccommodationPojo toAccomodationPojo() {
return new AccommodationPojo(accommodationId, name, type, description, country, city,
adress, image);
}
@OneToMany(mappedBy = "accommodationEntity", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
public List<AccommodationDetailEntity> getAccommodationDetailEntity() {
return accommodationDetailEntity;
}
public void setAccommodationDetailEntity(
List<AccommodationDetailEntity> accommodationDetailEntity) {
this.accommodationDetailEntity = accommodationDetailEntity;
}
}
这是我在运行wildfly时遇到的错误：
10:14:05,245 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 59) MSC000001: Failed to start service jboss.persistenceunit."feedback-service-0.0.1-SNAPSHOT.war#jpa-app": org.jboss.msc.service.StartException in service jboss.persistenceunit."feedback-service-0.0.1-SNAPSHOT.war#jpa-app": java.lang.NoClassDefFoundError: com/comtrade/trips/service/user/entity/UserEntity
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:179)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:121)
at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:667)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:193)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.NoClassDefFoundError: com/comtrade/trips/service/user/entity/UserEntity
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.getDeclaredMethods(Class.java:1975)
at org.hibernate.annotations.common.reflection.java.JavaXClass.getDeclaredMethodProperties(JavaXClass.java:112)
at org.hibernate.annotations.common.reflection.java.JavaXClass.getDeclaredProperties(JavaXClass.java:129)
at org.hibernate.annotations.common.reflection.java.JavaXClass.getDeclaredProperties(JavaXClass.java:121)
at org.hibernate.cfg.InheritanceState.determineDefaultAccessType(InheritanceState.java:251)
at org.hibernate.cfg.InheritanceState.getElementsToProcess(InheritanceState.java:211)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:717)
at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl.processEntityHierarchies(AnnotationMetadataSourceProcessorImpl.java:245)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess$1.processEntityHierarchies(MetadataBuildingProcess.java:222)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:265)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:847)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:874)
at org.jboss.as.jpa.hibernate5.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:161)
... 7 more
Caused by: java.lang.ClassNotFoundException: com.comtrade.trips.service.user.entity.UserEntity from [Module "deployment.feedback-service-0.0.1-SNAPSHOT.war:main" from Service Module Loader]
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:198)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:363)
at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:351)
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:93)
... 23 more
10:14:05,750 INFO [org.hibernate.tool.hbm2ddl.SchemaValidator] (ServerService Thread Pool -- 58) HHH000229: Running schema validator
10:14:05,750 INFO [org.hibernate.tool.hbm2ddl.SchemaValidator] (ServerService Thread Pool -- 61) HHH000229: Running schema validator
10:14:07,940 INFO [org.jboss.resteasy.resteasy_jaxrs.i18n] (ServerService Thread Pool -- 68) RESTEASY002225: Deploying javax.ws.rs.core.Application: class com.comtrade.trips.service.accommodation.application.MyApplication
10:14:07,940 INFO [org.jboss.resteasy.resteasy_jaxrs.i18n] (ServerService Thread Pool -- 66) RESTEASY002225: Deploying javax.ws.rs.core.Application: class com.comtrade.trips.service.accommodation.application.AccommodationApplication
10:14:08,003 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 66) WFLYUT0021: Registered web context: /accommodation-service-0.0.1-SNAPSHOT
10:14:08,018 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 68) WFLYUT0021: Registered web context: /accommodation-service
10:14:08,034 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("deploy") failed - address: ([("deployment" => "feedback-service-0.0.1-SNAPSHOT.war")]) - failure description: {
"WFLYCTL0080: Failed services" => {"jboss.persistenceunit.\"feedback-service-0.0.1-SNAPSHOT.war#jpa-app\"" => "org.jboss.msc.service.StartException in service jboss.persistenceunit.\"feedback-service-0.0.1-SNAPSHOT.war#jpa-app\": java.lang.NoClassDefFoundError: com/comtrade/trips/service/user/entity/UserEntity
Caused by: java.lang.NoClassDefFoundError: com/comtrade/trips/service/user/entity/UserEntity
Caused by: java.lang.ClassNotFoundException: com.comtrade.trips.service.user.entity.UserEntity from [Module \"deployment.feedback-service-0.0.1-SNAPSHOT.war:main\" from Service Module Loader]"},
"WFLYCTL0412: Required services that are not installed:" => ["jboss.persistenceunit.\"feedback-service-0.0.1-SNAPSHOT.war#jpa-app\""],
"WFLYCTL0180: Services with missing/unavailable dependencies" => undefined
}
有人可以帮助我吗？
答案 0 :(得分：0)
检查您的persistence.xml文件。在此文件中，您可能具有<persistence-unit>个列出的实体类。
选项1）
通过<class>package.YourEntity</class>
选项2）
或者通过添加<exclude-unlisted-classes>false</exclude-unlisted-classes>，无需像选项1中那样手动列出所有实体。