add RFC3339 DateTimeFormatter

micro-common/src/main/java/com/jiangtj/platform/common/DatetimeFormatters.java

@@ -1,9 +1,20 @@
 package com.jiangtj.platform.common;
 
 import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeFormatterBuilder;
 
 public interface DatetimeFormatters {
     DateTimeFormatter DateTime = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
     DateTimeFormatter Date = DateTimeFormatter.ofPattern("yyyy-MM-dd");
     DateTimeFormatter Time = DateTimeFormatter.ofPattern("HH:mm:ss");
+    // RFC3339 for wechat pay v3
+    DateTimeFormatter RFC3339 = new DateTimeFormatterBuilder()
+        .parseCaseInsensitive()
+        .append(Date)
+        .appendLiteral("T")
+        .append(Time)
+        .parseLenient()
+        .appendOffsetId()
+        .parseStrict()
+        .toFormatter();
 }

micro-common/src/test/java/com/jiangtj/platform/common/DatetimeFormattersTest.java

@@ -0,0 +1,29 @@
+package com.jiangtj.platform.common;
+
+import org.junit.jupiter.api.Test;
+
+import java.time.*;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class DatetimeFormattersTest {
+
+    @Test
+    public void testFormatters() {
+        LocalDate date = LocalDate.of(2024, 2, 3);
+        LocalTime time = LocalTime.of(8, 30, 40);
+        LocalDateTime datetime = LocalDateTime.of(date, time);
+        ZonedDateTime zonedDatetime = ZonedDateTime.of(datetime, ZoneId.of("Asia/Shanghai"));
+
+        assertEquals("2024-02-03", date.format(DatetimeFormatters.Date));
+        assertEquals("2024-02-03", datetime.format(DatetimeFormatters.Date));
+        assertEquals("2024-02-03", zonedDatetime.format(DatetimeFormatters.Date));
+        assertEquals("08:30:40", time.format(DatetimeFormatters.Time));
+        assertEquals("08:30:40", datetime.format(DatetimeFormatters.Time));
+        assertEquals("08:30:40", zonedDatetime.format(DatetimeFormatters.Time));
+        assertEquals("2024-02-03 08:30:40", datetime.format(DatetimeFormatters.DateTime));
+        assertEquals("2024-02-03 08:30:40", zonedDatetime.format(DatetimeFormatters.DateTime));
+        assertEquals("2024-02-03T08:30:40+08:00", zonedDatetime.format(DatetimeFormatters.RFC3339));
+    }
+
+}