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55 lines
1.3 KiB
55 lines
1.3 KiB
package com.gyf.csams.util
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import okhttp3.internal.toHexString
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import java.text.SimpleDateFormat
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import java.util.*
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fun randomNum(length: Int = 8): String {
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return List(length) { ('0'..'9').random() }.joinToString("")
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}
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fun encode(char: Char) = "\\u${char.toInt().toHexString()}"
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//unicode ->String
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fun String.decodeUnicode(): String {
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fun decode1(unicode: String) = unicode.toInt(16).toChar()
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val unicodes = this.split("\\u").mapNotNull { if (it.isNotBlank()) decode1(it) else null }
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return String(unicodes.toCharArray())
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}
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val CHINESE_UNICODE_AREA = 0X4e00..0X9fa5
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/**
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* 随机中文
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*
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* @param length
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* @return
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*/
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fun randomChinese(length: Int = 8): String {
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return List(length) {
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"\\u${
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CHINESE_UNICODE_AREA.random().toHexString()
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}".decodeUnicode()
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}.joinToString("")
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}
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const val DATETIME_FORMAT = "yyyy-MM-dd HH:mm"
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const val START_TIME = "2021-01-01 00:00"
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val FORMAT = SimpleDateFormat(DATETIME_FORMAT, Locale.US)
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val startUnix = FORMAT.parse(START_TIME)?.time
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fun randomDateTime(): Date {
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if (startUnix != null) {
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return Date("${(startUnix..Date().time).random()}".toLong())
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} else {
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throw IllegalArgumentException("生成随机失败，无法获取起始时间")
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}
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}
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fun Date.format(): String {
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return FORMAT.format(this)
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}
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