使用hibernate只在数据库中保存时间

我使用Hibernate并且只想在数据库中保存时间，因此我将字段声明为Date并使用临时类型时间对其进行注释，但它会引发关于格式的错误。

模型

@Entity @Table(name = "working_policy") public class OrganizationWorkingPolicy { @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name= "policy_id") private long policyId; @NotEmpty @NotNull @Column(name= "day") private String day; @DateTimeFormat(pattern="hh:mm:ss" ) @Temporal(TemporalType.TIME) @Column(name = "start_time") private Date startTime; @DateTimeFormat(pattern="HH:mm:ss" ) @Temporal(TemporalType.TIME) @Column(name = "end_time") private Date endTime; // getter and setters } 

错误

 Servlet.service() for servlet [dispatcher] in context with path [/AppointmentSchedular] threw exception [Request processing failed; nested exception is java.lang.IllegalArgumentException: Can not construct instance of java.util.Date from String value '12:20:00': not a valid representation (error: Failed to parse Date value '12:20:00': Can not parse date "12:20:00": not compatible with any of standard forms ("yyyy-MM-dd'T'HH:mm:ss.SSSZ", "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", "EEE, dd MMM yyyy HH:mm:ss zzz", "yyyy-MM-dd")) at [Source: N/A; line: -1, column: -1] (through reference chain: com.appoitment.schedular.model.OrganizationWorkingPolicy["startTime"])] with root cause com.fasterxml.jackson.databind.exc.InvalidFormatException: Can not construct instance of java.util.Date from String value '12:20:00': not a valid representation (error: Failed to parse Date value '12:20:00': Can not parse date "12:20:00": not compatible with any of standard forms ("yyyy-MM-dd'T'HH:mm:ss.SSSZ", "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", "EEE, dd MMM yyyy HH:mm:ss zzz", "yyyy-MM-dd")) at [Source: N/A; line: -1, column: -1] (through reference chain: com.appoitment.schedular.model.OrganizationWorkingPolicy["startTime"]) 

Answer 1

尝试使用java.sql.Time; 而不是import java.util.Date; 在Hibernate实体类中，它应该可以工作。