请求处理失败;嵌套异常是org.hibernate.type.SerializationException：无法反序列化

Question

这是我的模型class.when破坏我的春天项目它给出了这个错误 请求处理失败;嵌套异常是org.hibernate.type.SerializationException：无法反序列化。 我做了几个解决方案，但同样的错误将given.Is任何一个能找到什么是获得那种错误 的原因，这是我的模型类...

> import java.io.Serializable; import java.util.Date; 
> 
> import javax.persistence.Basic; import javax.persistence.Column; 
> import javax.persistence.Entity; import javax.persistence.FetchType; 
> import javax.persistence.GeneratedValue; import 
> javax.persistence.GenerationType; import javax.persistence.Id; import 
> javax.persistence.JoinColumn; import javax.persistence.ManyToOne; 
> import javax.persistence.NamedQueries; import 
> javax.persistence.NamedQuery; import 
> javax.persistence.SequenceGenerator; import javax.persistence.Table; 
> import javax.persistence.Temporal; import 
> javax.persistence.TemporalType; import 
> javax.xml.bind.annotation.XmlRootElement; 
> 
> 
> @Entity @Table(name = "season_types" , schema = "unipointmain") 
> @XmlRootElement @NamedQueries({ 
>  @NamedQuery(name = "SeasonTypes.findAll", query = "SELECT s FROM SeasonTypes s"), 
>  @NamedQuery(name = "SeasonTypes.findBySeasonName", query = "SELECT s FROM SeasonTypes s WHERE s.seasonName = :seasonName"), 
>  @NamedQuery(name = "SeasonTypes.findBySeasonId", query = "SELECT s FROM SeasonTypes s WHERE s.seasonId = :seasonId"), 
>  @NamedQuery(name = "SeasonTypes.findByStartDate", query = "SELECT s FROM SeasonTypes s WHERE s.startDate = :startDate"), 
>  @NamedQuery(name = "SeasonTypes.findByEndDate", query = "SELECT s FROM SeasonTypes s WHERE s.endDate = :endDate"), 
>  @NamedQuery(name = "SeasonTypes.findByComment", query = "SELECT s FROM SeasonTypes s WHERE s.comment = :comment")}) public class 
> SeasonTypes implements Serializable { 
>  private static final long serialVersionUID = 1L; 
>  @Column(name = "season_name") 
>  private String seasonName; 
>  @Id // @SequenceGenerator(name="pk_sequence",sequenceName="unipointmain.season_types_pk_seq", 
> allocationSize=1) 
> // @GeneratedValue(strategy=GenerationType.SEQUENCE,generator="pk_sequence") 
>  @GeneratedValue(strategy = GenerationType.SEQUENCE, generator="season_types_pk_seq") 
>  @SequenceGenerator(name="season_types_pk_seq", sequenceName="unipointmain.season_types_pk_seq", allocationSize=1) 
>  @Column(name = "season_id") 
>  private Integer seasonId; 
>  
>  @Column(name = "merchant_ref_id")  private Merchant merchant; 
>  @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "merchant_ref_id") 
>  public Merchant getMerchant() {  return merchant; } public void setMerchant(Merchant merchant) {  this.merchant = merchant; } 
> 
> @Column(name = "start_date") 
>  private String startDate; 
>  @Column(name = "end_date") 
>  private String endDate; 
>  @Column(name = "comment") 
>  private String comment; 
>  @JoinColumn(name = "offer_id", referencedColumnName = "offerid") 
>  @ManyToOne 
>  private Offer offerId; 
>  
> 
>  public SeasonTypes() { 
>  } 
>  public SeasonTypes(Integer seasonId) { 
>  this.seasonId = seasonId; 
>  } 
> 
>  public String getSeasonName() { 
>   return seasonName; 
>  } 
> 
>  public void setSeasonName(String seasonName) { 
>   this.seasonName = seasonName; 
>  } 
> 
>  public Integer getSeasonId() { 
>   return seasonId; 
>  } 
> 
>  public void setSeasonId(Integer seasonId) { 
>   this.seasonId = seasonId; 
>  } 
> 
>  public String getStartDate() { 
>   return startDate; 
>  } 
> 
>  public void setStartDate(String startDate) { 
>   this.startDate = startDate; 
>  } 
> 
>  public String getEndDate() { 
>   return endDate; 
>  } 
> 
>  public void setEndDate(String endDate) { 
>   this.endDate = endDate; 
>  } 
> 
>  public String getComment() { 
>   return comment; 
>  } 
> 
>  public void setComment(String comment) { 
>   this.comment = comment; 
>  } 
> 
>  public Offer getOfferId() { 
>   return offerId; 
>  } 
> 
>  public void setOfferId(Offer offerId) { 
>   this.offerId = offerId; 
>  } 
> 
>  @Override 
>  public int hashCode() { 
>   int hash = 0; 
>   hash += (seasonId != null ? seasonId.hashCode() : 0); 
>   return hash; 
>  } 
> 
>  @Override 
>  public boolean equals(Object object) { 
>   // TODO: Warning - this method won't work in the case the id fields are not set 
>   if (!(object instanceof SeasonTypes)) { 
>    return false; 
>   } 
>   SeasonTypes other = (SeasonTypes) object; 
>   if ((this.seasonId == null && other.seasonId != null) || (this.seasonId != null && !this.seasonId.equals(other.seasonId))) { 
>    return false; 
>   } 
>   return true; 
>  } 
> 
>  @Override 
>  public String toString() { 
>   return "com.unipoint.test.SeasonTypes[ seasonId=" + seasonId + " ]"; 
>  } 
>  
>  } 

Answer 1

你的类必须是可序列化，如以及作为你课堂参数给出的任何类。 您的问题可能在于Merchant或Offer未实现可序列化接口。

希望这会有所帮助