package cn.flightfeather.supervision.common.utils
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import java.awt.Image
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import java.awt.image.BufferedImage
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import java.io.*
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import java.util.*
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import javax.imageio.ImageIO
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object FileUtil {
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@Throws(Exception::class)
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fun uploadFile(file: ByteArray, filePath: String, fileName: String) {
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val targetFile = File(filePath)
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if (!targetFile.exists()) {
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targetFile.mkdirs()
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}
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val out = FileOutputStream(filePath + fileName)
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out.write(file)
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out.flush()
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out.close()
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}
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//删除文件夹
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fun delFolder(folderPath: String) {
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try {
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delAllFile(folderPath) //删除完里面所有内容
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var filePath = folderPath
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filePath = filePath
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val myFilePath = java.io.File(filePath)
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myFilePath.delete() //删除空文件夹
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} catch (e: Exception) {
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e.printStackTrace()
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}
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}
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fun delAllFile(path: String): Boolean {
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var flag = false
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val file = File(path)
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if (!file.exists()) {
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return flag
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}
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if (!file.isDirectory) {
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return flag
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}
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val tempList = file.list()
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var temp: File? = null
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for (i in tempList!!.indices) {
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if (path.endsWith(File.separator)) {
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temp = File(path + tempList[i])
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} else {
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temp = File(path + File.separator + tempList[i])
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}
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if (temp.isFile) {
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temp.delete()
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}
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if (temp.isDirectory) {
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delAllFile(path + "/" + tempList[i])//先删除文件夹里面的文件
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delFolder(path + "/" + tempList[i])//再删除空文件夹
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flag = true
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}
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}
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return flag
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}
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@Throws(Exception::class)
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fun copy(file: File, toFile: File) {
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val b = ByteArray(1024)
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var a: Int
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val fis: FileInputStream
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val fos: FileOutputStream
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if (file.isDirectory) {
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var filepath = file.absolutePath
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filepath = filepath.replace("\\\\".toRegex(), "/")
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var toFilepath = toFile.absolutePath
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toFilepath = toFilepath.replace("\\\\".toRegex(), "/")
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val lastIndexOf = filepath.lastIndexOf("/")
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toFilepath += filepath.substring(lastIndexOf, filepath.length)
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val copy = File(toFilepath)
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//复制文件夹
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if (!copy.exists()) {
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copy.mkdir()
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}
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//遍历文件夹
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for (f in file.listFiles()!!) {
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copy(f, copy)
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}
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} else {
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if (toFile.isDirectory) {
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var filepath = file.absolutePath
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filepath = filepath.replace("\\\\".toRegex(), "/")
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var toFilepath = toFile.absolutePath
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toFilepath = toFilepath.replace("\\\\".toRegex(), "/")
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val lastIndexOf = filepath.lastIndexOf("/")
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toFilepath += filepath.substring(lastIndexOf, filepath.length)
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//写文件
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val newFile = File(toFilepath)
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fis = FileInputStream(file)
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fos = FileOutputStream(newFile)
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a = fis.read(b)
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while (a != -1) {
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fos.write(b, 0, a)
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a = fis.read(b)
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}
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} else {
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//写文件
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fis = FileInputStream(file)
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fos = FileOutputStream(toFile)
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a = fis.read(b)
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while (a != -1) {
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fos.write(b, 0, a)
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a = fis.read(b)
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}
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}
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}
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}
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/**
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* 按照固定宽度压缩图片至base64形式
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*/
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// fun compressImage2(bytes: ByteArray): String {
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// val length = 1440//图片长边固定压缩为1440像素
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//
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// val input = ByteArrayInputStream(bytes)
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// val srcImg = ImageIO.read(input)
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// var srcLong = 0
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// var srcShort = 0
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// if (srcImg.width <= srcImg.height) {
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// srcLong = srcImg.height
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// srcShort = srcImg.width
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//
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// } else {
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//
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// }
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// val scale = w.toFloat() / srcW
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// val h = (srcImg.height * scale).toInt()
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//
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// val buffImg = BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB)
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// buffImg.graphics.drawImage(srcImg.getScaledInstance(w, h, Image.SCALE_SMOOTH), 0, 0, null)
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// val out = ByteArrayOutputStream()
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// ImageIO.write(buffImg, "PNG", out)
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//
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// return SCHEME_PNG + Base64.getEncoder().encodeToString(out.toByteArray())
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// }
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}
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