我尝试使用Spring MVC和Hibernate保存表单中的字段。但是在这里我得到了一些例外，如下所示。表单包含两个带有类型文件的元素。我无法在代码中找到任何错误。任何人都可以帮我摆脱这个例外。提前谢谢....
这是我的控制器：
@Controller
@RequestMapping(value = "ecom")
public class MerchantController {
@Autowired
MerchantService merchantService;
@RequestMapping(value = "/saveMe", method = { RequestMethod.POST, RequestMethod.GET })
public ModelAndView saveMe(ModelMap model, HttpServletRequest req) throws FileUploadException {
System.out.println("inside controller");
String status = merchantService.saveAll(req);
model.put("status",status);
return new ModelAndView("merchantRegistration",model);
}
}
这是我的ServiceImpl：
@Service("merService")
@Transactional
public class MerchantServiceImpl implements MerchantService {
@Autowired
MerchantDao merchantDao;
@Override
public String saveAll(HttpServletRequest req){
System.out.println("inside serv");
boolean isMultipart = ServletFileUpload.isMultipartContent(req);
boolean boolStatus=false;
byte[] bytes = null;
byte[] bytesTwo = null;
Merchant merchant = new Merchant();
if(isMultipart) {
try {
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
List<FileItem> items = upload.parseRequest(req);
Iterator iter = items.iterator();
while (iter.hasNext()) {
FileItem item = (FileItem) iter.next();
String fieldName = item.getFieldName();
if (item.isFormField()) {
if (fieldName.equalsIgnoreCase("merchant-name")) {
merchant.setMerchantName(item.getString());
}else if (fieldName.equalsIgnoreCase("industry")) {
Industry industry = new Industry();
industry = merchantDao.getIndustry(Integer.parseInt(item.getString()));
merchant.setIndustry(industry);
} else if (fieldName.equalsIgnoreCase("cmpny-reg-no")) {
merchant.setMerchantNo(item.getString());
} else if (fieldName.equalsIgnoreCase("zakka-no")) {
merchant.setMerchantZakka(item.getString());
} else if (fieldName.equalsIgnoreCase("bank-id")) {
Bank bank = new Bank();
bank = merchantDao.getBank(Integer.parseInt(item.getString()));
merchant.setBankId(bank);
} else if (fieldName.equalsIgnoreCase("bank-acc-no")) {
merchant.setMerchantAccount(item.getString());
} else if (fieldName.equalsIgnoreCase("bank-code")) {
merchant.setMerchantIfsc(item.getString());
} else if (fieldName.equalsIgnoreCase("service")) {
Services services = new Services();
services = merchantDao.getService(Integer.parseInt(item.getString()));
merchant.setServiceId(services);
} else if (fieldName.equalsIgnoreCase("fb")) {
merchant.setSocialNtwrk1(item.getString());
} else if (fieldName.equalsIgnoreCase("gplus")) {
merchant.setSocialNtwrk2(item.getString());
} else if (fieldName.equalsIgnoreCase("twitter")) {
merchant.setSocialNtwrk3(item.getString());
} else if (fieldName.equalsIgnoreCase("flickr")) {
merchant.setSocialNtwrk4(item.getString());
}
merchant.setCreated(new Timestamp(new Date().getTime()));
} else {
try {
if (fieldName.equalsIgnoreCase("logo")) {
bytes = IOUtils.toByteArray(item.getInputStream());
String fileName1 = item.getName();
int indexOfFile1 = 0;
if (fileName1.contains("\\")) {
indexOfFile1 = fileName1.lastIndexOf("\\");
fileName1 = fileName1.substring(indexOfFile1 + 1);
//msg = msg + "With file "+fileName1;
}
merchant.setMerchantLogo(bytes);
} else if (fieldName.equalsIgnoreCase("banner")) {
bytesTwo = IOUtils.toByteArray(item.getInputStream());
String fileName2 = item.getName();
int indexOfFile2 = 0;
if (fileName2.contains("\\")) {
indexOfFile2 = fileName2.lastIndexOf("\\");
fileName2 = fileName2.substring(indexOfFile2 + 1);
//msg = msg + ", "+fileName2;
}
merchant.setMerchantBanner(bytesTwo);
}
} catch (IOException ex) {
//Logger.getLogger(ExceptionAndInvestigation.class.getName()).log(Level.SEVERE, null, ex);
// logger.error(ex);
}
}
}
} catch (FileUploadException ex) {
Logger.getLogger(MerchantServiceImpl.class.getName()).log(Level.SEVERE, null, ex);
}
boolStatus= merchantDao.saveInfo(merchant);
}
JSONObject jsonObj = new JSONObject();
if(boolStatus){
jsonObj.put("message","Saved Successfully" );
jsonObj.put("status","success");
}else{
jsonObj.put("message","Save Failed" );
jsonObj.put("status","fail");
}
return jsonObj.toString();
}
}
这是DaoImpl：
@Repository
public class MerchantDaoImpl implements MerchantDao {
@Autowired
private SessionFactory sessionFactory;
@Override
public boolean saveInfo(Merchant merchant){
boolean flag = false;
try {
System.out.println("Inside dao");
Session session = sessionFactory.getCurrentSession();
session.save(merchant);
flag = true;
} catch (Exception e) {
System.out.println("Exception in saving ..."+e.getMessage());
}
return flag;
}
@Override
public Industry getIndustry(int intIndustryId){
Session session = sessionFactory.getCurrentSession();
Industry industry = (Industry) session.get(Industry.class, intIndustryId);
return(Industry) industry;
}
@Override
public Bank getBank(int intBankId){
Session session = sessionFactory.getCurrentSession();
Bank bank = (Bank) session.get(Bank.class, intBankId);
return(Bank) bank;
}
public Services getService(int intServiceId){
Session session = sessionFactory.getCurrentSession();
Services service = (Services) session.get(Services.class, intServiceId);
return(Services) service;
}
我得到如下例外：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'merchantController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.ecommerce.service.MerchantService com.ecommerce.controller.MerchantController.merchantService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'merService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.ecommerce.dao.MerchantDao com.ecommerce.service.MerchantServiceImpl.merchantDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'merchantDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory com.ecommerce.dao.MerchantDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ecommerce.model.Transactions.serviceId in com.ecommerce.model.Services.transactionses
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4973)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5467)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1291)
at org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:390)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:610)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2442)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2431)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.ecommerce.service.MerchantService com.ecommerce.controller.MerchantController.merchantService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'merService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.ecommerce.dao.MerchantDao com.ecommerce.service.MerchantServiceImpl.merchantDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'merchantDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory com.ecommerce.dao.MerchantDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ecommerce.model.Transactions.serviceId in com.ecommerce.model.Services.transactionses
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 44 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'merService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.ecommerce.dao.MerchantDao com.ecommerce.service.MerchantServiceImpl.merchantDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'merchantDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory com.ecommerce.dao.MerchantDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ecommerce.model.Transactions.serviceId in com.ecommerce.model.Services.transactionses
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1017)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 46 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.ecommerce.dao.MerchantDao com.ecommerce.service.MerchantServiceImpl.merchantDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'merchantDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory com.ecommerce.dao.MerchantDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ecommerce.model.Transactions.serviceId in com.ecommerce.model.Services.transactionses
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 57 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'merchantDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory com.ecommerce.dao.MerchantDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ecommerce.model.Transactions.serviceId in com.ecommerce.model.Services.transactionses
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1017)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 59 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory com.ecommerce.dao.MerchantDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ecommerce.model.Transactions.serviceId in com.ecommerce.model.Services.transactionses
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 70 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ecommerce.model.Transactions.serviceId in com.ecommerce.model.Services.transactionses
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1017)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 72 more
Caused by: org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ecommerce.model.Transactions.serviceId in com.ecommerce.model.Services.transactionses
at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:768)
at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:728)
at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:70)
at org.hibernate.cfg.Configuration.originalSecondPassCompile(Configuration.java:1695)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1424)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1844)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1928)
at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:343)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:431)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:416)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)
... 82 more
这是我的实体：
@Entity
@Table(name="ECOM_TRANSACTIONS")
public class Transactions implements Serializable {
@Id
@Column(name="TRANSACTIONID", unique=true, nullable=false)
private String transactionid;
@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name="SERVICEID", nullable=false)
private Services services;
@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name="MERCHANTID")
private Merchant merchant;
@Column(name="TRANSACTIONMERCHANTID", nullable=false)
private String transactionmerchantid;
@Column(name="FNAME", length=100)
private String fname;
@Column(name="LNAME", length=100)
private String lname;
@Column(name="EMAIL")
private String email;
@Column(name="AMOUNT", precision=126, scale=0)
private Double amount;
@Column(name="STATUS", length=20)
private String status;
@Column(name="IPADDRESS", length=17)
private String ipaddress;
@Column(name="CREATED")
@Temporal(javax.persistence.TemporalType.TIMESTAMP)
private Date created;
@Column(name="DESCRIPTION")
private String description;
getters and setters
服务实体：
public class Services implements Serializable {
@Id
@Column(name="SERVICEID", unique=true, nullable=false, precision=22, scale=0)
private int serviceId;
@Column(name="SERVICETYPE", nullable=false)
private String serviceType;
@Column(name="REGISTERCHARGE", precision=17, scale=0)
private int registerCharge;
@Column(name="MONTHLYCHARGE", precision=17, scale=0)
private int monthlyCharge;
@Column(name="TRANSFFERCHARGE", precision=17, scale=0)
private int transferCharge;
@OneToMany(fetch=FetchType.LAZY, mappedBy="serviceId")
private Set<Transactions> transactionses = new HashSet<Transactions>(0);
@OneToMany(fetch=FetchType.LAZY, mappedBy="serviceId")
private Set<Merchant> merchants = new HashSet<Merchant>(0);
getter and setters
答案 0 :(得分：1)
此错误消息：
mappedBy reference an unknown target entity property:
com.ecommerce.model.Transactions.serviceId in com.ecommerce.model.Services.transactionses
告诉您，在Services中您确实使用了像@OneToMany这样的hibernate注释，并确实为注释mappedBy属性serviceId指定了但是如您发布的代码中所示Transactions，没有serviceId属性。
所以你必须替换Services：
@OneToMany(fetch=FetchType.LAZY, mappedBy="serviceId")
private Set<Transactions> transactionses = new HashSet<Transactions>(0);
由：
@OneToMany(mappedBy = "services") // use the name of the field
private Set<Transactions> transactionses = new HashSet<Transactions>(0);
答案 1 :(得分：0)
这将是模型的问题。您需要在实体类中正确设置@OneToMany/@ManyToOne注释的mappedBy属性 - ＆gt;您没有提供实体类，但com.ecommerce.model.Transactions.serviceId
com.ecommerce.model.Services.transactionses确实存在问题