我看到Java时区为GMT / UTC

我试过了

• mvn spring-boot：run -Dexec.args =“-Duser.timezone = GMT”
• mvn spring-boot：run -Dexec.args =“-Duser.timezone = UTC”
• user.timezone=UTC 在 config/application.properties
• user.timezone=GMT

• 在pom.xml中：

      <plugin>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-maven-plugin</artifactId>
      <configuration>
          <properties>
            <spring-boot.run.jvmArguments>-Duser.timezone=UTC</spring-boot.run.jvmArguments>
          </properties>
      </configuration>
  </plugin>
  

• mvn spring-boot：运行-Dspring-boot.run.jvmArguments =“-Duser.timezone = UTC”

但它打印出来

System.out.println(TimeZone.getDefault());

sun.util.calendar.ZoneInfo [id =“ America / New_York”，offset =
-18000000，dstSavings = 3600000，useDaylight = true，transitions = 235，lastRule
= java.util.SimpleTimeZone [id = America / New_York，offset =-
18000000，dstSavings = 3600000，useDaylight = true，startYear = 0，startMode =
3，startMonth = 2，startDay = 8，startDayOfWeek = 1，startTime =
7200000，startTimeMode = 0，endMode = 3，endMonth = 10，endDay = 1， endDayOfWeek
= 1，endTime = 7200000，endTimeMode = 0]]

Spring Boot 1.5.19，Java 8