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我在Hibernate中使用Spring MVC,其目的是获取表数据并将其存储在一个列表中。这里使用的实体类:SpringMVC + Hibernate:criteria.list()返回一个空的列表
package com.bng.core.entity;
// default package
// Generated Oct 25, 2015 4:38:03 PM by Hibernate Tools 3.4.0.CR1
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import static javax.persistence.GenerationType.IDENTITY;
import javax.persistence.Id;
import javax.persistence.Table;
/**
* servicenames generated by hbm2java
*/
@Entity
@Table(name = "servicenames")
public class ServiceNames implements java.io.Serializable {
private Integer id;
private String serviceName;
public ServiceNames() {
}
public ServiceNames(String servicename) {
this.serviceName = servicename;
}
@Id
@GeneratedValue(strategy = IDENTITY)
@Column(name = "id", unique = true, nullable = false)
public Integer getId() {
return this.id;
}
public void setId(Integer id) {
this.id = id;
}
@Column(name = "servicename", length = 25)
public String getServiceName() {
return this.serviceName;
}
public void setServiceName(String servicename) {
this.serviceName = servicename;
}
}
而且用来获取列表的方法:
@Transactional
@Override
public List<ServiceNames> getServiceNames() {
Logger.sysLog(LogValues.APP_INFO, this.getClass().getName(), "Getting all Service names.");
Session session = sessionFactoryGlobal.openSession();
Criteria criteria = session.createCriteria(ServiceNames.class);
List<ServiceNames> serviceNamesList = criteria.list();
session.close();
return serviceNamesList;
}
当调用该方法返回一个空列表。请提出它出错的地方?