依賴：
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-compress --> <!-- 處理壓縮解壓 --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-compress</artifactId> <version>1.9</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-io --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-io</artifactId> <version>1.3.2</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.4</version> </dependency>
工具類：
package com.fsc.zip_utils.utils; import org.apache.commons.lang3.StringUtils; import java.io.*; import java.util.zip.*; public class ZipUtil { private static final String TAG = "ZipUtil"; /** * 解壓文件到指定文件夾 * * @param zip 源文件 * @param destPath 目標文件夾路徑 * @throws Exception 解壓失敗 */ public static void decompress(String zip, String destPath) throws Exception { //參數檢查 if (StringUtils.isEmpty(zip) || StringUtils.isEmpty(destPath)) { throw new IllegalArgumentException("zip or destPath is illegal"); } File zipFile = new File(zip); if (!zipFile.exists()) { throw new FileNotFoundException("zip file is not exists"); } File destFolder = new File(destPath); if (!destFolder.exists()) { if (!destFolder.mkdirs()) { throw new FileNotFoundException("destPath mkdirs is failed"); } } ZipInputStream zis = null; BufferedOutputStream bos = null; try { zis = new ZipInputStream(new BufferedInputStream(new FileInputStream(zip))); ZipEntry ze; while ((ze = zis.getNextEntry()) != null) { //得到解壓文件在當前存儲的絕對路徑 String filePath = destPath + File.separator + ze.getName(); if (ze.isDirectory()) { new File(filePath).mkdirs(); } else { ByteArrayOutputStream baos = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int count; while ((count = zis.read(buffer)) != -1) { baos.write(buffer, 0, count); } byte[] bytes = baos.toByteArray(); File entryFile = new File(filePath); //創建父目錄 if (!entryFile.getParentFile().exists()) { if (!entryFile.getParentFile().mkdirs()) { throw new FileNotFoundException("zip entry mkdirs is failed"); } } //寫文件 bos = new BufferedOutputStream(new FileOutputStream(entryFile)); bos.write(bytes); bos.flush(); } } } finally { closeQuietly(zis); closeQuietly(bos); } } /** * @param srcPath 源文件的絕對路徑，可以爲文件或文件夾 * @param destPath 目標文件的絕對路徑 /sdcard/.../file_name.zip * @throws Exception 解壓失敗 */ public static void compress(String srcPath, String destPath) throws Exception { //參數檢查 if (StringUtils.isEmpty(srcPath) || StringUtils.isEmpty(destPath)) { throw new IllegalArgumentException("srcPath or destPath is illegal"); } File srcFile = new File(srcPath); if (!srcFile.exists()) { throw new FileNotFoundException("srcPath file is not exists"); } File destFile = new File(destPath); if (destFile.exists()) { if (!destFile.delete()) { throw new IllegalArgumentException("destFile is exist and do not delete."); } } CheckedOutputStream cos = null; ZipOutputStream zos = null; try { // 對目標文件做CRC32校驗，確保壓縮後的zip包含CRC32值 cos = new CheckedOutputStream(new FileOutputStream(destPath), new CRC32()); //裝飾一層ZipOutputStream，使用zos寫入的數據就會被壓縮啦 zos = new ZipOutputStream(cos); zos.setLevel(9);//設置壓縮級別 0-9,0表示不壓縮，1表示壓縮速度最快，9表示壓縮後文件最小；默認爲6，速率和空間上得到平衡。 if (srcFile.isFile()) { compressFile("", srcFile, zos); } else if (srcFile.isDirectory()) { compressFolder("", srcFile, zos); } } finally { closeQuietly(zos); } } private static void compressFolder(String prefix, File srcFolder, ZipOutputStream zos) throws IOException { String new_prefix = prefix + srcFolder.getName() + "/"; File[] files = srcFolder.listFiles(); //支持空文件夾 if (files.length == 0) { compressFile(prefix, srcFolder, zos); } else { for (File file : files) { if (file.isFile()) { compressFile(new_prefix, file, zos); } else if (file.isDirectory()) { compressFolder(new_prefix, file, zos); } } } } /** * 壓縮文件和空目錄 * * @param prefix * @param src * @param zos * @throws IOException */ private static void compressFile(String prefix, File src, ZipOutputStream zos) throws IOException { //若是文件,那肯定是對單個文件壓縮 //ZipOutputStream在寫入流之前，需要設置一個zipEntry //注意這裏傳入參數爲文件在zip壓縮包中的路徑，所以只需要傳入文件名即可 String relativePath = prefix + src.getName(); if (src.isDirectory()) { relativePath += "/"; } ZipEntry entry = new ZipEntry(relativePath); //寫到這個zipEntry中，可以理解爲一個壓縮文件 zos.putNextEntry(entry); InputStream is = null; try { if (src.isFile()) { is = new FileInputStream(src); byte[] buffer = new byte[1024 << 3]; int len = 0; while ((len = is.read(buffer)) != -1) { zos.write(buffer, 0, len); } } //該文件寫入結束 zos.closeEntry(); } finally { closeQuietly(is); } } private static void closeQuietly(final Closeable closeable) { try { if (closeable != null) { closeable.close(); } } catch (final IOException ioe) { // ignore } } /** * Json字符串進行打包 * * @param tempFilePath 臨時文件存放的地方(以正斜線結尾) F:/ * @param filename 文件名，fusc.txt * @param destPath 目標文件的絕對路徑 F:/ziped/dudududududdududu.zip * @param jsonStr 文件內的json字符串 * @throws Exception */ public static void compressJsonStr(String tempFilePath, String filename, String destPath, String jsonStr) throws Exception { File tempFile = new File(tempFilePath); if (!tempFile.exists()) { tempFile.mkdir(); } BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(tempFilePath + filename)); bufferedWriter.write(jsonStr); bufferedWriter.close(); ZipUtil.compress(tempFilePath + filename, destPath); File file = new File(tempFilePath + filename); file.delete(); if (tempFile.listFiles().length <= 0) { tempFile.delete(); } } }
源碼下載地址（springboot項目，導入idea即可使用）：