如何使用 Java 将 yyyy-mm-dd hh:mm:ss.ms 转换为 mm/dd/yyyy hh24:mi

Question

I have a SQL query which returns one column value-2020-07-01 03:43:30.0(yyyy-mm-dd hh:mm:ss.ms).I want to convert this into 'mm/dd/yyyy hh24:mi' format using Java code.How to do this with Java.

Answer 1

You can use two different DateTimeFormatter s:

DateTimeFormatter parseFormat = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.S");
DateTimeFormatter resultFormat = DateTimeFormatter.ofPattern("MM/dd/yyyy HH:mm");

Where parseFormat is used for parsing and resultFormat is used to produce the String from the parsed date:

LocalDateTime ldt = LocalDateTime.parse("2020-07-01 03:43:30.0", parseFormat);
String result = ldt.format(resultFormat);
System.out.println(result);

Prints:

07/01/2020 03:43