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jodatime持久化hibernate jpa

2024-07-02 09:06:33   227人阅读

http://www.joda.org/joda-time-hibernate/index.html

JODA-TIME提供了一个功能更全面强大的功能组来替换JDK中的Date；

//字符串转日期

String timeString = "2006-01-26T13:30:00-06:00";
DateTime dateTime = new DateTime(timeString);

System.out.println(dateTime.toDate());


timeString = "2006-01-26";

dateTime = new DateTime(timeString);

System.out.println(dateTime);


java.sql.Timestamp setSendDate =   Timestamp.valueOf("2006-01-26 13:30:00");
System.out.println(setSendDate);


//日期转字符串
org.joda.time.DateTime dateTime0 = new org.joda.time.DateTime ();
System.out.println(dateTime0);
System.out.println(dateTime0.toString("yyyy-MM-dd") + dateTime0.toString("hh:mm:ss") );

但是很多时候需要持久化日期到数据库中，比较流行的持久化框架Hibernate却并不支持JodaTime数据类型，hibernate支持的日期类型java.util.Date ,java.sql.Timestamp;

为了使jodaTime日期类型能够集成到hibernate框架中，需要加入jodaTime-hibernate ；

jodaTime-hibernate 1.3兼容 Hibernate 3.6  不支持 Hibernate 4.0；


如何获得jodaTime-hibernate？

<!-- Joda Time Library -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>1.6.2</version>
</dependency>


<dependency>
   <groupId>joda-time</groupId>
   <artifactId>joda-time-hibernate</artifactId>
   <version>1.3</version>
</dependency>


如何配置jodaTime-hibernate？

Hibernate mapping

Add the type attribute to your property configuration. e.g.:

<property type="org.joda.time.contrib.hibernate.PersistentDateTime" name="dateTime"/>

Hibernate annotations

Set the type using the @org.hibernate.annotations.Type annotation. e.g.:

@Column
@Type(type="org.joda.time.contrib.hibernate.PersistentDateTime")
private DateTime fromDate;

Sometimes there are multiple columns to be specified, as with PersistentDateTimeTZ:

@Columns(columns={@Column(name="startTime"),@Column(name="startTimezone")})
@Type(type="org.joda.time.contrib.hibernate.PersistentDateTimeTZ")
private DateTime startDateTime;


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