我的实体有这个属性......
@Convert(converter = LocalDateTimeAtributeConverter.class)
@Column(name="dthr_ult_atualizacao")
private LocalDateTime ultimaAtualizacao;
在服务器中,该列由JPA创建为:
dthr_ult_atualizacao (datetime2(7), null)
通过代码,我将以下值保存在此列中:
2016-05-09T15:20:00.357
当我在数据库中选择直接时,值是正确的:
2016-05-09 15:20:00.3570000
但是当我通过JPA恢复这个值时,值是错误的:
2016-05-07T15:20:00.357
请注意,这一天错了两天。
所以,如果我手动更改数据类型,一切正常。怎么了?
我的转换器:
import java.time.LocalDateTime;
import javax.persistence.AttributeConverter;
import javax.persistence.Converter;
@Converter
public class LocalDateTimeAtributeConverter implements AttributeConverter<LocalDateTime, java.sql.Timestamp> {
@Override
public java.sql.Timestamp convertToDatabaseColumn(LocalDateTime entityValue)
{
if (entityValue != null) {
return java.sql.Timestamp.valueOf(entityValue);
}
return null;
}
@Override
public LocalDateTime convertToEntityAttribute(java.sql.Timestamp databaseValue) {
if (databaseValue != null) {
return databaseValue.toLocalDateTime();
}
return null;
}
}
我正在使用Microsofr jdbc42和wildfly 9
答案 0 :(得分:1)
您使用的是旧的JDBC驱动器吗?
SQL Server的JDBC版本3与Java7存在问题: https://support.microsoft.com/kb/2652061
您可以在此处获取新版本: https://www.microsoft.com/en-us/download/details.aspx?id=11774
我做了一些测试并得到了这个结果:
日期 - JDBC版本
2016-06-21 16:19:00.383 - 4.2.6420.100
2016-06-19 16:19:38.603 - 3.0.1301.101
Teste代码:
public static void main(String[] args) throws Exception {
String url = "jdbc:sqlserver://localhost\\SQLEXPRESS;databasename=teste_date";
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
Connection connection = DriverManager.getConnection(url,"sa", "password");
Date time = Calendar.getInstance().getTime();
PreparedStatement psDel = connection.prepareStatement("delete from teste");
psDel.executeUpdate();
psDel.close();
PreparedStatement psInsert = connection.prepareStatement("insert into teste values (? , ?)");
psInsert.setInt(1, 1);
psInsert.setTimestamp(2, new Timestamp(time.getTime()));
psInsert.executeUpdate();
psInsert.close();
PreparedStatement ps = connection.prepareStatement("select * from teste");
ResultSet rs = ps.executeQuery();
String driverVersion = connection.getMetaData().getDriverVersion();
while (rs.next()) {
Timestamp date = rs.getTimestamp(2);
System.out.println(date + " - " + driverVersion);
}
rs.close();
ps.close();
connection.close();
}