DateUtil

Struct DateUtil 

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pub struct DateUtil;
Expand description

日期工具,包含常用快捷生成,如获取当日时间字符串、格式化、时间字符串解析等

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impl DateUtil

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pub fn current_date() -> NaiveDate

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pub fn current_date_string() -> String

获取当前日期字符串,输出格式:%Y-%m-%d

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pub fn current_datetime() -> NaiveDateTime

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pub fn current_datetime_string() -> String

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pub fn today_string() -> String

获取当前日期的字符串表示

该函数获取本地当前时间,并将其格式化为“年-月-日“的字符串格式。

§返回值

返回格式为“YYYY-MM-DD“的日期字符串

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pub fn today_date() -> NaiveDate

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pub fn parse_day_string(day_string: &str) -> Result<NaiveDate, ParseError>

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pub fn day_offset(offset: i64) -> String

进行日期偏移,offset为偏移量,正数表示向后偏移,负数表示向前偏移

§返回值

返回格式为“YYYY-MM-DD“的日期字符串

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pub fn yesterday_string() -> String

获取昨天日期的字符串表示

该函数计算昨天的日期,并将其格式化为“YYYY-MM-DD“格式的字符串。

§Returns

返回昨天日期的字符串表示,格式为“YYYY-MM-DD“

§Example
let yesterday = yesterday_string();
println!("{}", yesterday); // 输出类似 "2023-12-06"
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pub fn yesterday_date() -> NaiveDate

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pub fn tomorrow_string() -> String

获取明天日期的字符串表示

该函数计算明天的日期,并将其格式化为“YYYY-MM-DD“格式的字符串。

§返回值

返回表示明天日期的字符串,格式为“YYYY-MM-DD“

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pub fn tomorrow_date() -> NaiveDate

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pub fn cmp_string( time1: &str, time2: &str, fmt: &str, ) -> Result<Ordering, ParseError>

比较两个时间字符串的大小

该函数将两个时间字符串按照指定的格式解析为DateTime对象,然后进行比较。

§参数
  • time1 - 第一个时间字符串
  • time2 - 第二个时间字符串
  • fmt - 时间格式字符串,用于解析time1和time2
§返回值
  • Ok(Ordering) - 比较结果,Ordering::Less表示time1小于time2, Ordering::Equal表示time1等于time2, Ordering::Greater表示time1大于time2
  • Err(ParseError) - 时间解析失败时返回错误信息
§错误处理

如果任一时间字符串无法按照指定格式解析,函数将返回ParseError错误

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pub fn current_time_string() -> String

获取当前时间字符串,输出格式:%Y-%m-%d %H:%M:%S

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pub fn parse_datetime(time: &str) -> Result<NaiveDateTime, ParseError>

§参数
  • time: 格式如:“2025-08-30 12:00:00”
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pub fn parse_string(time: &str, fmt: &str) -> Result<NaiveDateTime, ParseError>

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pub fn current_timestamp() -> u64

当前时间戳(秒),返回10位长度

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pub fn timestamp(time: DateTime<Local>) -> u64

返回10位时间戳(秒)

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pub fn timestamp_add(time: DateTime<Local>, seconds: i64) -> u64

时间戳加减法(秒)

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