使用方法:通过file或流直接创建ZipInputStream ZipOutputStream

val zipOut = File("C:\\Users\\admin\\Desktop\\output.zip").zipOutputStream()
val zipIn = File("C:\\Users\\admin\\Desktop\\output.zip").zipInputStream()
val zipOut = xxOutputStream.zipOutputStream()
val zipIn = xxInputStream.zipInputStream()
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对多文件,文件夹进行压缩处理(支持空文件夹)

File("C:\\Users\\admin\\Desktop\\output.zip").zipOutputStream().zipFrom("C:\\Users\\admin\\Desktop\\SophixPatchTool_windows","F:\\MUSIC\\Justin Bieber - Love Yourself.flac")
//上述代码将SophixPatchTool_windows文件夹与Justin Bieber - Love Yourself.flac压缩到C:\\Users\\admin\\Desktop\\output.zip目录下复制代码

将zip文件压缩到指定目录

将zip文件压缩到指定目录C:\\Users\\admin\\Desktop\\66
File("C:\\Users\\admin\\Desktop\\output.zip").unZipTo("C:\\Users\\admin\\Desktop\\66")
或者
File("C:\\Users\\admin\\Desktop\\output.zip") unZipTo "C:\\Users\\admin\\Desktop\\66"
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代码主要是一些递归的算法,以及大量使用了kotlin的拓展函数,并且使用了中缀表达式 并没有比较难的地方,代码贴上

fun File.zipInputStream() = ZipInputStream(this.inputStream())fun File.zipOutputStream() = ZipOutputStream(this.outputStream())fun InputStream.zipInputStream() = ZipInputStream(this)fun OutputStream.zipOutputStream() = ZipOutputStream(this)infix fun File.unZipTo(path: String) {//使用GBK编码,避免压缩中文文件名乱码checkUnzipFolder(path)ZipFile(this, Charset.forName("GBK")) unZipTo path
}infix fun ZipFile.unZipTo(path: String) {checkUnzipFolder(path)for (entry in entries()) {//判断是否为文件夹if (entry.isDirectory) {File("${path}/${entry.name}").mkdirs()} else {val input = getInputStream(entry)val outputFile = File("${path}/${entry.name}")if (!outputFile.exists()) outputFile.smartCreateNewFile()val output = outputFile.outputStream()input.writeTo(output, DEFAULT_BUFFER_SIZE)}}
}/*** 检查路径正确性*/
private fun checkUnzipFolder(path: String) {val file = File(path)if (file.isFile) throw RuntimeException("路径不能是文件")if (!file.exists()) {if (!file.mkdirs()) throw RuntimeException("创建文件夹失败")}
}fun ZipOutputStream.zipFrom(vararg srcs: String) {val files = srcs.map { File(it) }files.forEach {if (it.isFile) {zip(arrayOf(it), null)} else if (it.isDirectory) {zip(it.listFiles(), it.name)}}this.close()
}private fun ZipOutputStream.zip(files: Array<File>, path: String?) {//前缀,用于构造路径val prefix = if (path == null) "" else "$path/"if (files.isEmpty()) createEmptyFolder(prefix)files.forEach {if (it.isFile) {val entry = ZipEntry("$prefix${it.name}")val ins = it.inputStream().buffered()putNextEntry(entry)ins.writeTo(this, DEFAULT_BUFFER_SIZE, closeOutput = false)closeEntry()} else {zip(it.listFiles(), "$prefix${it.name}")}}
}/*** inputstream内容写入outputstream*/
fun InputStream.writeTo(outputStream: OutputStream, bufferSize: Int = 1024 * 2,closeInput: Boolean = true, closeOutput: Boolean = true) {val buffer = ByteArray(bufferSize)val br = this.buffered()val bw = outputStream.buffered()var length = 0while ({ length = br.read(buffer);length != -1 }()) {bw.write(buffer, 0, length)}bw.flush()if (closeInput) {close()}if (closeOutput) {outputStream.close()}
}/*** 生成一个压缩文件的文件夹*/
private fun ZipOutputStream.createEmptyFolder(location: String) {putNextEntry(ZipEntry(location))closeEntry()
}fun File.smartCreateNewFile(): Boolean {if (exists()) return trueif (parentFile.exists()) return createNewFile()if (parentFile.mkdirs()) {if (this.createNewFile()) {return true}}return false
}复制代码