jvm中指定时区信息user.timezone问题及解决方式

    ObjectMapper mapper = new ObjectMapper();
    mapper.findAndRegisterModules();

    mapper.setTimeZone(TimeZone.getDefault()); // 在本项目必须有这样，某则有些接口中返回的ZonedDateTime序列化后不带时区信息，添加这行就会带上时区信息
    mapper.registerModule(new JodaModule());
    mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
    return mapper;

	<dependency>
		<groupId>joda-time</groupId>
		<artifactId>joda-time</artifactId>
		<version>2.12.2</version>
	</dependency>

import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

   DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.SSSSSSZ").withZoneUTC();

    //  String str = "2022-02-16T21:44:31.914407+08:00";
    String str = "2022-02-17T14:35:48.8932+08:00";

    //String str = "2022-02-16T21:44:31+09:00";
    DateTime dateTime = formatter.parseDateTime(str);
    log.info("dateTime:{}", dateTime);
    String strAgain = dateTime.toString(formatter);
    log.info("strAgain:{}", strAgain);