当我尝试插入新旅行时，我得到那些红线。我正在使用Spring MVC，Hibernate和MySQL。任何人都可以帮我解决这个问题吗？
以下是代码：
Voyage.java：
@Entity
@Table(name = "voyage", catalog = "voyage")
public class Voyage implements java.io.Serializable {
private Integer idVoyage;
private Lieu lieuDepart;
private Lieu lieuArrive;
private Moyendetransport moyendetransport;
private Date depart;
private Date arrivee;
private Set<Lignedetrips> lignedetripses = new HashSet<Lignedetrips>(0);
public Voyage() {
}
public Voyage(Lieu lieuDepart, Lieu lieuArrive, Moyendetransport moyendetransport) {
this.lieuDepart = lieuDepart;
this.lieuArrive = lieuArrive;
this.moyendetransport = moyendetransport;
}
public Voyage(Lieu lieuDepart, Lieu lieuArrive, Moyendetransport moyendetransport, Date depart, Date arrivee,
Set<Lignedetrips> lignedetripses) {
this.lieuDepart = lieuDepart;
this.lieuArrive = lieuArrive;
this.moyendetransport = moyendetransport;
this.depart = depart;
this.arrivee = arrivee;
this.lignedetripses = lignedetripses;
}
@Id
@GeneratedValue(strategy = IDENTITY)
@Column(name = "ID_VOYAGE", unique = true, nullable = false)
public Integer getIdVoyage() {
return this.idVoyage;
}
public void setIdVoyage(Integer idVoyage) {
this.idVoyage = idVoyage;
}
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "LIE_ID_LIEU", nullable = false)
public Lieu getlieuDepart() {
return this.lieuDepart;
}
public void setlieuDepart(Lieu lieuDepart) {
this.lieuDepart = lieuDepart;
}
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "ID_LIEU", nullable = false)
public Lieu getlieuArrive() {
return this.lieuArrive;
}
public void setlieuArrive(Lieu lieuArrive) {
this.lieuArrive = lieuArrive;
}
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "ID_MOYENDETRANSPORT", nullable = false)
public Moyendetransport getMoyendetransport() {
return this.moyendetransport;
}
public void setMoyendetransport(Moyendetransport moyendetransport) {
this.moyendetransport = moyendetransport;
}
@Temporal(TemporalType.DATE)
@Column(name = "DEPART", length = 10)
public Date getDepart() {
return this.depart;
}
public void setDepart(Date depart) {
this.depart = depart;
}
@Temporal(TemporalType.DATE)
@Column(name = "ARRIVEE", length = 10)
public Date getArrivee() {
return this.arrivee;
}
public void setArrivee(Date arrivee) {
this.arrivee = arrivee;
}
@OneToMany(fetch = FetchType.LAZY, mappedBy = "voyage")
public Set<Lignedetrips> getLignedetripses() {
return this.lignedetripses;
}
public void setLignedetripses(Set<Lignedetrips> lignedetripses) {
this.lignedetripses = lignedetripses;
}
}`
Lieu.java
@Entity
@Table(name = "lieu", catalog = "voyage")
public class Lieu implements java.io.Serializable {
private Integer idLieu;
private String codepostal;
private String ville;
private String pays;
private String gareAeroportPort;
private Set<Voyage> voyagesForLieIdLieu = new HashSet<Voyage>(0);
private Set<Voyage> voyagesForIdLieu = new HashSet<Voyage>(0);
public Lieu() {
}
public Lieu(String codepostal, String ville, String pays, String gareAeroportPort, Set<Voyage> voyagesForLieIdLieu,
Set<Voyage> voyagesForIdLieu) {
this.codepostal = codepostal;
this.ville = ville;
this.pays = pays;
this.gareAeroportPort = gareAeroportPort;
this.voyagesForLieIdLieu = voyagesForLieIdLieu;
this.voyagesForIdLieu = voyagesForIdLieu;
}
@Id
@GeneratedValue(strategy = IDENTITY)
@Column(name = "ID_LIEU", unique = true, nullable = false)
public Integer getIdLieu() {
return this.idLieu;
}
public void setIdLieu(Integer idLieu) {
this.idLieu = idLieu;
}
@Column(name = "CODEPOSTAL", length = 6)
public String getCodepostal() {
return this.codepostal;
}
public void setCodepostal(String codepostal) {
this.codepostal = codepostal;
}
@Column(name = "VILLE", length = 40)
public String getVille() {
return this.ville;
}
public void setVille(String ville) {
this.ville = ville;
}
@Column(name = "PAYS", length = 40)
public String getPays() {
return this.pays;
}
public void setPays(String pays) {
this.pays = pays;
}
@Column(name = "GARE_AEROPORT_PORT", length = 100)
public String getGareAeroportPort() {
return this.gareAeroportPort;
}
public void setGareAeroportPort(String gareAeroportPort) {
this.gareAeroportPort = gareAeroportPort;
}
@OneToMany(fetch = FetchType.LAZY, mappedBy = "lieuDepart")
public Set<Voyage> getVoyagesForLieIdLieu() {
return this.voyagesForLieIdLieu;
}
public void setVoyagesForLieIdLieu(Set<Voyage> voyagesForLieIdLieu) {
this.voyagesForLieIdLieu = voyagesForLieIdLieu;
}
@OneToMany(fetch = FetchType.LAZY, mappedBy = "lieuArrive")
public Set<Voyage> getVoyagesForIdLieu() {
return this.voyagesForIdLieu;
}
public void setVoyagesForIdLieu(Set<Voyage> voyagesForIdLieu) {
this.voyagesForIdLieu = voyagesForIdLieu;
}
}
TripController.java
@Controller
public class TripController {
@Autowired
VoyageService voyageService;
@Autowired
LieuService lieuService;
@Autowired
MoyenDeTransportService moyenDeTransportService;
@InitBinder
public void initBinder(WebDataBinder webDataBinder) {
SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm");
dateFormat.setLenient(false);
webDataBinder.registerCustomEditor(Date.class, "publishDate", new CustomDateEditor(dateFormat, false));
}
@RequestMapping(value = { "/addTrip" }, method = RequestMethod.GET)
public String addTrip(ModelMap model) {
Voyage voyage = new Voyage();
model.addAttribute("voyage", voyage);
return "addTrip";
}
@RequestMapping(value = { "/addTrip" }, method = RequestMethod.POST)
public String saveTrip(ModelMap model, @ModelAttribute("voyage") Voyage voyage, BindingResult result) {
voyageService.saveVoyage(voyage);
return "addTrip";
}
@RequestMapping(value = { "/", "/home" }, method = RequestMethod.GET)
public String gethome(ModelMap model) {
return "index";
}
@ModelAttribute("lieu")
public List<Lieu> initializelieux() {
return lieuService.allLieu();
}
@ModelAttribute("moyenDeTransports")
public List<Moyendetransport> initializeMoyenDeTransport() {
return moyenDeTransportService.allMoyenDeTransport();
}
}
addTrip.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
</head>
<body>
<h2>addTrip Form</h2>
<form:form modelAttribute="voyage" method="POST" acceptCharset="UTF-8">
<form:input type="hidden" path="idVoyage" id="id" />
<table>
<tr>
<td><label for="depart">date de depart </label></td>
<td><form:input type ="date" path="depart" id="depart" /></td>
</tr>
<tr>
<td><label for="arrivee">date d'arrivée: </label></td>
<td><form:input path="arrivee" id="arrivee" /></td>
</tr>
<tr>
<td><label for="moyendetransport">Moyen de transport </label></td>
<td><form:select path="moyendetransport">
<form:options items="${moyenDeTransports}"
itemValue="libelleMoyendetransport" itemLabel="libelleMoyendetransport" />
</form:select></td>
</tr>
<tr>
<td><label for="lieuArrive">Lieu de départ </label></td>
<td><form:select path="lieuArrive">
<form:options items="${lieu}" itemValue="idLieu"
itemLabel="pays" />
</form:select></td>
</tr>
<tr>
<td><label for="lieuDepart">Lieu d'arrivé </label></td>
<td><form:select path="lieuDepart">
<form:options items="${lieu}" itemValue="idLieu"
itemLabel="pays" />
</form:select></td>
</tr>
<tr>
<td colspan="3"><c:choose>
<c:when test="${edit}">
<input type="submit" value="Update" />
</c:when>
<c:otherwise>
<input type="submit" value="Register" />
</c:otherwise>
</c:choose></td>
</tr>
</table>
</form:form>
<br />
</body>
</html>
Erros：
GRAVE: Servlet.service() for servlet [dispatcher] in context with path [/Voyage] threw exception [Request processing failed; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement] with root cause
com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'ID_LIEU' cannot be null
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:408)
at com.mysql.jdbc.Util.getInstance(Util.java:383)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1049)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4226)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4158)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2615)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2776)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2840)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2082)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2334)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2262)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2246)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:208)
at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96)
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3032)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3558)
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:98)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:490)
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:195)
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:179)
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:214)
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:324)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:288)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:194)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125)
at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:206)
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:149)
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:75)
at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:811)
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:784)
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:789)
at com.oneway.voyage.dao.AbstractDao.persist(AbstractDao.java:34)
at com.oneway.voyage.dao.VoyageDaoImp.saveVoyage(VoyageDaoImp.java:18)
at com.oneway.voyage.service.VoyageServiceImp.saveVoyage(VoyageServiceImp.java:22)
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.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy38.saveVoyage(Unknown Source)
at com.oneway.voyage.controller.TripController.saveTrip(TripController.java:57)
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.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:776)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1521)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1478)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
答案 0 :(得分：0)
您在Voyage实体中指定带有$ sudo ln -s /path/to/java-cef/src/third_party/cef/linux64/Resources/icudtl.dat /usr/lib/jvm/java-8-oracle/bin/icudtl.dat
$ sudo ln -s /path/to/java-cef/src/third_party/cef/linux64/Debug/natives_blob.bin /usr/lib/jvm/java-8-oracle/bin/natives_blob.bin
$ sudo ln -s /path/to/java-cef/src/third_party/cef/linux64/Debug/snapshot_blob.bin /usr/lib/jvm/java-8-oracle/bin/snapshot_blob.bin
的LIEU_ARRIVE FK列。你肯定会尝试插入一个没有Lieu d'arrivé的航程（一种没有目的地的航程： - ）
答案 1 :(得分：0)
看起来您的lieuArrive属性未被保留。如果您希望将其与父级一起保存，则需要添加CascadeType
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "ID_LIEU", nullable = false, cascade = CascadeType.ALL)
public Lieu getlieuArrive() {
return this.lieuArrive;
}
然后它将被保存（和删除）以及您的父实体。如果您不需要更新，则只能使用CascadeType.PERSIST