1
任何人都可以告诉我如何解决在MySQL数据库顶部使用hibernate和jpa的spring mvc应用程序中的以下错误吗？春季多对一关系冬眠jpa
[javax.el.PropertyNotFoundException: Property 'facilities' not found on type
org.springframework.samples.knowledgemanager.model.ProviderCompany] with root cause
javax.el.PropertyNotFoundException: Property 'facilities' not found on type
org.springframework.samples.knowledgemanager.model.ProviderCompany
创建底层表的SQL是：
CREATE TABLE IF NOT EXISTS providerCompanies(
id INT(4) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(80),
INDEX(name)
);
CREATE TABLE IF NOT EXISTS facilityAddresses(
id int(11) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
company_id int(11) UNSIGNED NOT NULL,
type_id int(11) UNSIGNED NOT NULL,
facilityname varchar(50),
address varchar(200),
city varchar(200),
state_id int(11) UNSIGNED NOT NULL,
zip varchar(50),
isHQ bool,
FOREIGN KEY (company_id) REFERENCES providerCompanies(id),
FOREIGN KEY (type_id) REFERENCES locationTypes(id),
FOREIGN KEY (state_id) REFERENCES states(id)
）;
的ProviderCompany类是：
@Entity
@Table(name = "providerCompanies")
public class ProviderCompany extends NamedEntity {
@ManyToMany(cascade = {CascadeType.ALL})
@JoinTable(name="companyContactJunction",
joinColumns={@JoinColumn(name="company_id")},
inverseJoinColumns={@JoinColumn(name="contact_id")})
protected Set<OfficeContact> companycontacts = new HashSet<OfficeContact>();
@OneToMany(cascade = CascadeType.ALL, mappedBy = "company", fetch=FetchType.EAGER)
protected Set<FacilityAddress> facilities = new HashSet<FacilityAddress>();
////////////OfficeContact methods
protected void setContactsInternal(Set<OfficeContact> locs) {this.companycontacts = locs;}
protected Set<OfficeContact> getContactsInternal() {
if (this.companycontacts == null) {this.companycontacts = new HashSet<OfficeContact>();}
return this.companycontacts;
}
public List<OfficeContact> getContacts() {
List<OfficeContact> sortedLocs = new ArrayList<OfficeContact>(getContactsInternal());
PropertyComparator.sort(sortedLocs, new MutableSortDefinition("contact", true, true));
return Collections.unmodifiableList(sortedLocs);
}
public void addContact(OfficeContact oc) {
getContactsInternal().add(oc);
oc.addCompany(this);
}
public OfficeContact getContact(String fa) {return getContact(fa, false);}
public OfficeContact getContact(String fa, boolean ignoreNew) {
fa = fa.toLowerCase();
for (OfficeContact e : getContactsInternal()) {
if (!ignoreNew || !e.isNew()) {
String compName = e.getLastName();
compName = compName.toLowerCase();
if (compName.equals(fa)) {return e;}
}
}
return null;
}
////////////Location methods
protected void setFacilitiesInternal(Set<FacilityAddress> addresses) {this.facilities = addresses;}
protected Set<FacilityAddress> getFacilitiesInternal() {
if (this.facilities == null) {this.facilities = new HashSet<FacilityAddress>();}
return this.facilities;
}
public List<FacilityAddress> getFacilities() {
List<FacilityAddress> sortedLocations = new ArrayList<FacilityAddress>(getFacilitiesInternal());
PropertyComparator.sort(sortedLocations, new MutableSortDefinition("location", true, true));
return Collections.unmodifiableList(sortedLocations);
}
public void addFacility(FacilityAddress addr) {
getFacilitiesInternal().add(addr);
addr.setCompany(this);
}
public FacilityAddress getFacility(String address) {return getFacility(address, false);}
public FacilityAddress getFacility(String addr, boolean ignoreNew) {
addr = addr.toLowerCase();
for (FacilityAddress address1 : getFacilitiesInternal()) {
if (!ignoreNew || !address1.isNew()) {
String compName = address1.getAddress();
compName = compName.toLowerCase();
if (compName.equals(addr)) {return address1;}
}
}
return null;
}
}
的FacilityAddress类是：
@Entity
@Table(name = "facilityAddresses")
public class FacilityAddress extends BaseEntity{
@Column(name="address")
protected String address;
@Column(name="city")
protected String city;
@ManyToOne
@JoinColumn(name = "state_id")
protected State state;
@Column(name="zip")
protected String zip;
@ManyToOne
@JoinColumn(name = "company_id")
protected ProviderCompany company;
@ManyToOne
@JoinColumn(name = "type_id")
protected LocationType locationType;
@Column(name = "facilityname")
protected String facilityname;
@Column(name = "isHQ")
protected boolean isHQ;
@ManyToMany(mappedBy="facilities")
protected Set<Provider> providers = new HashSet<Provider>();
public String getAddress(){return address;}
public void setAddress(String addr){address=addr;}
public String getCity(){return city;}
public void setCity(String cty){city=cty;}
public State getState(){return this.state;}
public void setState(State st){state=st;}
public String getZip(){return zip;}
public void setZip(String zp){zip=zp;}
protected void setCompany(ProviderCompany pc) {this.company = pc;}
public ProviderCompany getCompany(){return this.company;}
public LocationType getLocationType(){return locationType;}
public void setLocationType(LocationType lt){locationType=lt;}
public String getFacilityname(){return facilityname;}
public void setFacilityname(String dir){facilityname=dir;}
public boolean getIsHQ(){return isHQ;}
public void setIsHQ(boolean ma){isHQ=ma;}
public void addProvider(Provider p) {providers.add(p);}
public Set<Provider> getProviders(){return this.providers;}
public boolean isNew() {return (this.id == null);}
}
这里是BaseEntity.java：
@MappedSuperclass
public class BaseEntity {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
protected Integer id;
public void setId(Integer id) {this.id = id;}
public Integer getId() {return id;}
public boolean isNew() {return (this.id == null);}
}
这里是NamedEntity.java：
@MappedSuperclass
public class NamedEntity extends BaseEntity {
@Column(name = "name")
private String name;
public void setName(String name) {this.name = name;}
public String getName() {return this.name;}
@Override
public String toString() {return this.getName();}
}
JpaProviderCompanyRepository是：
@Repository
public class JpaProviderCompanyRepositoryImpl implements ProviderCompanyRepository {
@PersistenceContext
private EntityManager em;
@SuppressWarnings("unchecked")
public Collection<ProviderCompany> findByName(String name) {
System.out.println("---------------------- inside findByName() ");
Query query = this.em.createQuery("SELECT DISTINCT company FROM ProviderCompany company left join fetch company.facilities WHERE company.name LIKE :name");
System.out.println("---------------------- just created query. ");
query.setParameter("name", name + "%");
System.out.println("---------------------- just set parameter for query. ");
Collection<ProviderCompany> results = query.getResultList();
System.out.println("---------------------- just stored query results in collection. ");
return results;//query.getResultList();
}
@Override
public ProviderCompany findById(int id) {
// using 'join fetch' because a single query should load both owners and pets
// using 'left join fetch' because it might happen that an owner does not have pets yet
System.out.println("<<<<<<<<<<<<<<<<<<<<<<<< inside Jpa Repository findById() >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
Query query = this.em.createQuery("SELECT company FROM ProviderCompany company left join fetch company.facilities WHERE company.id =:id");
System.out.println("========================= Just set query. ");
query.setParameter("id", id);
System.out.println("------------------------- Just added parameter to query. ");
ProviderCompany pc = (ProviderCompany) query.getSingleResult();
System.out.println("------------------------- Just created ProviderCompany object from query result. ");
return pc;
}
@Override
public void save(ProviderCompany company) {
if (company.getId() == null) {this.em.persist(company);}
else {this.em.merge(company);}
}
}
完整的堆栈跟踪是：
Jan 24, 2014 11:10:12 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
javax.el.PropertyNotFoundException: Property 'facilities' not found on type org.springframework.samples.knowledgemanager.model.ProviderCompany
at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:237)
at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:214)
at javax.el.BeanELResolver.property(BeanELResolver.java:325)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:85)
at org.apache.jasper.el.JasperELResolver.getValue(JasperELResolver.java:104)
at org.apache.el.parser.AstValue.getValue(AstValue.java:183)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:1026)
at org.apache.jsp.WEB_002dINF.jsp.companies.companiesList_jsp._jspService(companiesList_jsp.java:327)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:263)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1208)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:992)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:939)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.github.dandelion.datatables.core.web.filter.DatatablesFilter.doFilter(DatatablesFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.github.dandelion.datatables.extras.servlet2.filter.DatatablesFilter.doFilter(DatatablesFilter.java:71)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Jan 24, 2014 11:10:12 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [KnowledgeManager] in context with path [/knowledgemanager] threw exception [javax.el.PropertyNotFoundException: Property 'facilities' not found on type org.springframework.samples.knowledgemanager.model.ProviderCompany] with root cause
javax.el.PropertyNotFoundException: Property 'facilities' not found on type org.springframework.samples.knowledgemanager.model.ProviderCompany
at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:237)
at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:214)
at javax.el.BeanELResolver.property(BeanELResolver.java:325)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:85)
at org.apache.jasper.el.JasperELResolver.getValue(JasperELResolver.java:104)
at org.apache.el.parser.AstValue.getValue(AstValue.java:183)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:1026)
at org.apache.jsp.WEB_002dINF.jsp.companies.companiesList_jsp._jspService(companiesList_jsp.java:327)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:263)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1208)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:992)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:939)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.github.dandelion.datatables.core.web.filter.DatatablesFilter.doFilter(DatatablesFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.github.dandelion.datatables.extras.servlet2.filter.DatatablesFilter.doFilter(DatatablesFilter.java:71)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
错误消息很明显：在实体'ProviderCompany'中没有'locations'属性，所以你的JPQL查询是错误的。你能指望什么？ –
@DavidLevesque谢谢你成为第一个看到错字的人。我已经把'locations'改成'facilities'。我刚刚对上面的代码进行了更改，这揭示了真正的错误。你能帮我解决吗？我一直在看这几天，但无法弄清楚。 – CodeMed
它看起来好像没有在'facilityAddresses'表中找到'address'列。你确定你的数据库模式是最新的，并且你正在连接到正确的数据库吗？ –