Hibernate的一對一映射錯誤org.hibernate.exception.ConstraintViolationException：無法執行JDBC批處理更新

Question

我做刪除操作上一對一的映射記錄，但它給我的錯誤

org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update 
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:96) 
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) 
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275) 
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:268) 
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:189) 
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321) 
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51) 
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216) 
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:383) 
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:133) 
at com.ehr.dao.VitalService.removeVital(VitalService.java:126) 
at org.Webapp.resource.VitalsResource.removeVital(VitalsResource.java:52) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) 
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:143) 
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:160) 
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$VoidOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:141) 
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:97) 
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389) 
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347) 
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102) 
at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:303) 
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) 
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) 
at org.glassfish.jersey.internal.Errors.process(Errors.java:315) 
at org.glassfish.jersey.internal.Errors.process(Errors.java:297) 
at org.glassfish.jersey.internal.Errors.process(Errors.java:267) 
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) 
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:286) 
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1072) 
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:399) 
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381) 
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344) 
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164) 
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395) 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250) 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188) 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166) 
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
at java.lang.Thread.run(Unknown Source) 
Caused by: java.sql.BatchUpdateException: Batch entry 0 delete from Vitals where vitalId='50' was aborted. Call getNextException to see the cause. 
at org.postgresql.jdbc2.AbstractJdbc2Statement$BatchResultHandler.handleError(AbstractJdbc2Statement.java:2621) 
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1837) 
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:407) 
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeBatch(AbstractJdbc2Statement.java:2754) 
at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70) 
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268) 
... 51 more 

患者類：

@Entity 
@Table(name = "Patient") 
public class Patient { 
@Id @GeneratedValue(strategy=GenerationType.AUTO) 
private int patientId; 
private String firstName; 
private String lastName; 
private int age; 
private String cnic; 
private String contactNumber; 
private String homeNumber; 
private String country; 
private String city; 
private String town; 
private String streetNo; 
private String houseNo; 
private String email; 
private String username; 
private String password; 


public int getPatientId() { 
    return patientId; 
} 
public void setPatientId(int patientId) { 
    this.patientId = patientId; 
} 
public String getFirstName() { 
    return firstName; 
} 
public void setFirstName(String firstName) { 
    this.firstName = firstName; 
} 
public String getLastName() { 
    return lastName; 
} 
public void setLastName(String lastName) { 
    this.lastName = lastName; 
} 
public int getAge() { 
    return age; 
} 
public void setAge(int age) { 
    this.age = age; 
} 
public String getCnic() { 
    return cnic; 
} 
public void setCnic(String cnic) { 
    this.cnic = cnic; 
} 
public String getContactNumber() { 
    return contactNumber; 
} 
public void setContactNumber(String contactNumber) { 
    this.contactNumber = contactNumber; 
} 
public String getHomeNumber() { 
    return homeNumber; 
} 
public void setHomeNumber(String homeNumber) { 
    this.homeNumber = homeNumber; 
} 
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 getTown() { 
    return town; 
} 
public void setTown(String town) { 
    this.town = town; 
} 
public String getStreetNo() { 
    return streetNo; 
} 
public void setStreetNo(String streetNo) { 
    this.streetNo = streetNo; 
} 
public String getHouseNo() { 
    return houseNo; 
} 
public void setHouseNo(String houseNo) { 
    this.houseNo = houseNo; 
} 
public String getEmail() { 
    return email; 
} 
public void setEmail(String email) { 
    this.email = email; 
} 
public String getUsername() { 
    return username; 
} 
public void setUsername(String username) { 
    this.username = username; 
} 
public String getPassword() { 
    return password; 
} 
public void setPassword(String password) { 
    this.password = password; 
} 
public int getId(){ 
    return patientId; 
} 

public Patient getPatient(){ 
    return this; 
} 
} 

生命體徵類：

@Entity 
@Table(name = "Vitals") 
public class Vitals { 
@Id @GeneratedValue(strategy=GenerationType.AUTO) 
private int vitalId; 
private float temperature; 
private int heartBeat; 
private int respiratoryRate; 
private int suger; 
private int bp; 
@OneToOne(cascade=CascadeType.ALL, fetch = FetchType.EAGER) 
@JoinColumn(name="patientId") 
private Patient patient; 

public int getVitalId() { 
    return vitalId; 
} 
public void setVitalId(int vitalId) { 
    this.vitalId = vitalId; 
} 
public int getBp() { 
    return bp; 
} 
public void setBp(int bp) { 
    this.bp = bp; 
} 
public float getTemperature() { 
    return temperature; 
} 
public void setTemperature(float temperature) { 
    this.temperature = temperature; 
} 
public int getHeartBeat() { 
    return heartBeat; 
} 
public void setHeartBeat(int heartBeat) { 
    this.heartBeat = heartBeat; 
} 
public int getRespiratoryRate() { 
    return respiratoryRate; 
} 
public void setRespiratoryRate(int respiratoryRate) { 
    this.respiratoryRate = respiratoryRate; 
} 
public int getSuger() { 
    return suger; 
} 
public void setSuger(int suger) { 
    this.suger = suger; 
} 
public Patient getPatient() { 
    return patient; 
} 
public void setPatient(Patient patient) { 
    this.patient = patient; 
} 
} 

病人和生命對象類：

public class PatientVital { 
private Vitals vitals; 
private Patient patient; 
public Vitals getVitals() { 
    return vitals; 
} 
public void setVitals(Vitals vitals) { 
    this.vitals = vitals; 
} 
public Patient getPatient() { 
    return patient; 
} 
public void setPatient(Patient patient) { 
    this.patient = patient; 
} 
} 

服務類：

public class VitalService { 

private SessionFactory sessionFactory = null; 
public void removeVital(int id){ 
    try{ 
     sessionFactory = new Configuration().configure().buildSessionFactory(); 
     Session session = sessionFactory.openSession(); 
     session.beginTransaction(); 
     Vitals vtl = new Vitals(); 
     vtl = (Vitals)session.get(Vitals.class, id); 
     session.delete(vtl); 
     session.getTransaction().commit(); 
     session.close(); 
    }catch(Exception ex){ 
     ex.printStackTrace(); 
    } 
} 
} 

資源類：

@Path("vitals") 
public class VitalsResource { 
VitalService vitalService = new VitalService(); 
@DELETE 
@Path("{vitalId}") 
@Produces(MediaType.APPLICATION_JSON) 
public void removeVital(@PathParam("vitalId") int id){ 
    vitalService.removeVital(id); 
} 
} 

有一個在數據庫中的記錄，但它給我這個埃羅。任何人都可以告訴我，我在這裏做錯了什麼。我會感謝:)

Answer 1

我不認爲你需要刪除Patient當刪除Vitals所以不要使用cascade=CascadeType.ALL。

@OneToOne(fetch = FetchType.EAGER) 
@JoinColumn(name="patientId") 
private Patient patient; 

Answer 2

您有2個選項。

選項1：

更改級聯型。

@OneToOne(cascade={CascadeType.PERSIST, CascadeType.MERGE}, fetch = FetchType.EAGER) 
@JoinColumn(name="patientId") 
private Patient patient; 

但是，當你要保存Vital記住，你必須保存Patient第一。

Patient p = new Patient(); 
p.setFirstName("Patient"); 
....  

Vitals v1 = new Vitals(); 
v1.setPatient(p); 
....  

Vitals v2 = new Vitals(); 
v2.setPatient(p); 
.... 

session.save(p); // This is needed because cascade won't happen on persist 
session.save(v1); 
session.save(v2); 

選項2：（這可能是最好的一個適合你）

如果你不想改變級聯型，

@OneToOne(cascade=CascadeType.ALL, fetch = FetchType.EAGER) 
@JoinColumn(name="patientId") 
private Patient patient; 

然後，刪除Vital如下從您的服務方法，

public void removeVital(int id){ 
    try{ 
     sessionFactory = new Configuration().configure().buildSessionFactory(); 
     Session session = sessionFactory.openSession(); 
     session.beginTransaction(); 


     Vitals vtl = (Vitals)session.get(Vitals.class, id); 
     vtl.setPatient(null); // Patient may have other vitals. 
     session.delete(vtl); 

     session.getTransaction().commit(); 
     session.close(); 
    }catch(Exception ex){ 
     ex.printStackTrace(); 
    } 
} 

Hop這有助於。