在Java中接受用户的日期并将其写入Postgresql

Question

I need to write to a column of data type Date in postgresql from a java application. In which datatype should I accept the input so that I can use it to insert into Postgresql?

Answer 1

LocalDate

As of JDBC 4.2 , the modern way to store a date-only value without time-of-day and without time zone is the LocalDate class.

LocalDate ld = LocalDate.of( 2019 , Month.JANUARY , 23 ) ;

This maps to a DATE type in Postgres .

myPreparedStatement.setObject( … , ld ) ;

Retrieval.

LocalDate ld = myResultSet.getObject( … , LocalDate.class ) ;

The legacy class java.sql.Date class is now legacy , and should never be used because of its severe design flaws.