它不会得到 session 记录。我需要返回分钟数。 如何在 Java 中迭代 Localtime 时返回分钟总和?
public String userLunchHoursSum(String username) {
List<WorkHour> workHours = workHourRepository.findWorkHoursByUsername(username);
System.out.println(Arrays.toString(workHours.toArray()));
long diff = 0;
LocalTime lunchTime;
long minutes = 0;
LocalTime plusMinutes = null;
for (WorkHour workHour : workHours) {
lunchTime = workHour.getLunch_time().toLocalTime(); //00:30:00
plusMinutes = lunchTime.plusMinutes(lunchTime.getMinute());
}
if(workHours.size()!= 0) {
return Long.toString(plusMinutes.getMinute());
}
return "00:00";
}
getLunch_time
返回java.sql.Time
。
最佳答案
如上所述,您应该存储持续时间而不是本地时间。如果这是您无法控制的,请考虑迁移数据库或创建中间解析函数。我还没有运行示例代码,因为我不知道 WorkHour
中有什么。
// leave the string formatting to other functions
public long userLunchHoursSum(String username) {
List<WorkHour> workHours = workHourRepository.findWorkHoursByUsername(username);
Duration totalDuration = Duration.ZERO;
for (WorkHour workHour : workHours) {
// save your time in the appropriate format beforehand
// do not use local time to store duration.
Duration lunchTime = Duration.between(LocalTime.MIDNIGHT, workHour.getLunch_time().toLocalTime()); //00:30:00
totalDuration = totalDuration.plus(lunchTime);
}
return totalDuration.toMinutes();
}
关于java - 如何在Java中返回LocalTime的总和,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/61304875/