=Start=<\/p>\n\n\n\n
\u7b80\u5355\u8bb0\u5f55\u4e00\u4e0b\u5982\u4f55\u7528Java\u5bf9zip\u6587\u4ef6\u8fdb\u884c\u538b\u7f29\u548c\u89e3\u538b\u7f29\uff0c\u5c24\u5176\u662f\u5982\u4f55\u5c06\u7279\u5b9a\u6587\u4ef6\u6dfb\u52a0\u5230\u4e00\u4e2a\u5df2\u6709\u7684zip\u538b\u7f29\u5305\u4e2d\uff08\u4e0d\u7528\u5148\u89e3\u538b\uff0c\u590d\u5236\uff0c\u7136\u540e\u91cd\u538b\u7f29\u7684\u65b9\u5f0f\u5b9e\u73b0\uff09\u3002<\/p>\n\n\n\n
\u538b\u7f29\u548c\u89e3\u538b\u7f29\u7279\u5b9a\u6587\u4ef6\u7684\u4ee3\u7801\u57fa\u672c\u662f\u4ece Baeldung \u8fd9\u91cc\u62f7\u8d1d\u8fc7\u6765\u7684\uff0c\u76f4\u63a5\u5f80\u5df2\u6709zip\u538b\u7f29\u5305\u4e2d\u6dfb\u52a0\u6587\u4ef6\u662f\u4ece\u5b98\u7f51\u4e2d\u7684\u793a\u4f8b\u4e2d\u6539\u7684\u3002<\/p>\n\n\n\n
package com.example;\n\nimport java.io.*;\nimport java.nio.file.FileSystem;\nimport java.nio.file.*;\nimport java.util.zip.ZipEntry;\nimport java.util.zip.ZipInputStream;\nimport java.util.zip.ZipOutputStream;\n\n\/**\n * @author ixyzero\n * Created on 2022-05-09\n *\/\npublic class opZip {\n public static void main(String[] args) {\n String sourceFile = \"new-test-docx.docx\";\n String zipFile = \"test-output.zip\";\n String appendFile = \"new-test-xlsx.xlsx\";\n String appendFile2 = \"new-test-xlsx.rar\";\n String unzipDir = \"unzipTest\";\n\n try {\n FileOutputStream fos = new FileOutputStream(zipFile);\n ZipOutputStream zipOut = new ZipOutputStream(fos);\n\n File fileToZip = new File(sourceFile);\n zipFile(fileToZip, fileToZip.getName(), zipOut);\n\n zipOut.close();\n fos.close();\n System.out.println(\"zip file success!\");\n\n addFileToZip(appendFile, zipFile);\n addFileToZip2(appendFile2, zipFile);\n\n unzipFile(zipFile, unzipDir);\n } catch (FileNotFoundException e) {\n e.printStackTrace();\n } catch (IOException e) {\n e.printStackTrace();\n } catch (Exception e) {\n e.printStackTrace();\n }\n }\n\n \/\/ https:\/\/www.baeldung.com\/java-compress-and-uncompress\n private static void unzipFile(String filePath, String unzipDir) throws Exception {\n File zipFile = new File(filePath);\n File destDir = new File(unzipDir);\n byte[] buffer = new byte[1024];\n ZipInputStream zis = new ZipInputStream(new FileInputStream(zipFile));\n ZipEntry zipEntry = zis.getNextEntry();\n while (zipEntry != null) {\n File newFile = newFile(destDir, zipEntry);\n if (zipEntry.isDirectory()) {\n if (!newFile.isDirectory() && !newFile.mkdirs()) {\n throw new IOException(\"Failed to create directory \" + newFile);\n }\n } else {\n \/\/ fix for Windows-created archives\n File parent = newFile.getParentFile();\n if (!parent.isDirectory() && !parent.mkdirs()) {\n throw new IOException(\"Failed to create directory \" + parent);\n }\n\n \/\/ write file content\n FileOutputStream fos = new FileOutputStream(newFile);\n int len;\n while ((len = zis.read(buffer)) > 0) {\n fos.write(buffer, 0, len);\n }\n fos.close();\n }\n zipEntry = zis.getNextEntry();\n }\n zis.closeEntry();\n zis.close();\n System.out.println(\"unzip file success!\");\n }\n\n private static void zipFile(File fileToZip, String fileName, ZipOutputStream zipOut) throws IOException {\n if (fileToZip.isHidden()) {\n return;\n }\n if (fileToZip.isDirectory()) {\n if (fileName.endsWith(\"\/\")) {\n zipOut.putNextEntry(new ZipEntry(fileName));\n zipOut.closeEntry();\n } else {\n zipOut.putNextEntry(new ZipEntry(fileName + \"\/\"));\n zipOut.closeEntry();\n }\n File[] children = fileToZip.listFiles();\n for (File childFile : children) {\n zipFile(childFile, fileName + \"\/\" + childFile.getName(), zipOut);\n }\n return;\n }\n FileInputStream fis = new FileInputStream(fileToZip);\n ZipEntry zipEntry = new ZipEntry(fileName);\n zipOut.putNextEntry(zipEntry);\n byte[] bytes = new byte[1024];\n int length;\n while ((length = fis.read(bytes)) >= 0) {\n zipOut.write(bytes, 0, length);\n }\n fis.close();\n }\n\n public static File newFile(File destinationDir, ZipEntry zipEntry) throws IOException {\n File destFile = new File(destinationDir, zipEntry.getName());\n\n String destDirPath = destinationDir.getCanonicalPath();\n String destFilePath = destFile.getCanonicalPath();\n\n if (!destFilePath.startsWith(destDirPath + File.separator)) {\n throw new IOException(\"Entry is outside of the target dir: \" + zipEntry.getName());\n }\n\n return destFile;\n }\n\n \/\/ work well, but only can add file not directory(files under dir can not be added)\n \/\/ https:\/\/stackoverflow.com\/questions\/13787318\/java-util-zip-replace-a-single-zip-file\n public static void addFileToZip(String filePathStr, String zipFilePathStr) throws Exception {\n Path myFilePath = Paths.get(filePathStr);\n Path zipFilePath = Paths.get(zipFilePathStr);\n try( FileSystem fs = FileSystems.newFileSystem(zipFilePath, null) ) {\n Path fileInsideZipPath = fs.getPath(filePathStr.contains(\"\/\") ?\n filePathStr.substring(filePathStr.lastIndexOf(\"\/\")) : \"\/\"+filePathStr);\n Files.copy(myFilePath, fileInsideZipPath); \/\/ fileInsideZipPath \u5b57\u7b26\u4e32\u7684\u5185\u5bb9\u5176\u5b9e\u53ef\u4ee5\u4efb\u610f\u8bbe\u7f6e\n } catch (IOException e) {\n \/\/ TODO Auto-generated catch block\n e.printStackTrace();\n }\n return;\n }\n\n \/\/ do not work, until add fs.close()\n public static void addFileToZip2(String filePathStr, String zipFilePathStr) throws Exception {\n Path myFilePath = Paths.get(filePathStr);\n Path zipFilePath = Paths.get(zipFilePathStr);\n FileSystem fs = FileSystems.newFileSystem(zipFilePath, null);\n Path fileInsideZipPath = fs.getPath(filePathStr.contains(\"\/\") ?\n filePathStr.substring(filePathStr.lastIndexOf(\"\/\")) : \"\/\"+filePathStr);\n Files.copy(myFilePath, fileInsideZipPath);\n fs.close(); \/\/ don't forget to add this after modify try-with-resources statement\n return;\n }\n\n}<\/code><\/pre>\n\n\n\nJDK7\u4e4b\u540e\uff0cJava\u591a\u4e86\u4e2a\u65b0\u7684\u8bed\u6cd5\uff1atry-with-resources\u8bed\u53e5\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3a\u662f\u4e00\u4e2a\u58f0\u660e\u4e00\u4e2a\u6216\u591a\u4e2a\u8d44\u6e90\u7684 try\u8bed\u53e5\uff08\u7528\u5206\u53f7\u9694\u5f00\uff09\uff0c\u4e00\u4e2a\u8d44\u6e90\u4f5c\u4e3a\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5e76\u4e14\u8fd9\u4e2a\u8d44\u6e90\u5fc5\u987b\u8981\u5728\u6267\u884c\u5b8c\u5173\u95ed\u7684\uff0ctry-with-resources\u8bed\u53e5\u786e\u4fdd\u5728\u8bed\u53e5\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u6bcf\u4e2a\u8d44\u6e90\u90fd\u88ab\u81ea\u52a8\u5173\u95ed \u3002<\/strong><\/p>\n\n\n\n\u53c2\u8003\u94fe\u63a5\uff1a<\/h5>\n\n\n\n
Zipping and Unzipping in Java
https:\/\/www.baeldung.com\/java-compress-and-uncompress<\/a><\/p>\n\n\n\nHow to create Zip file in Java
https:\/\/mkyong.com\/java\/how-to-compress-files-in-zip-format\/<\/a><\/p>\n\n\n\nPackage java.util.zip
https:\/\/docs.oracle.com\/javase\/7\/docs\/api\/java\/util\/zip\/package-summary.html<\/a><\/p>\n\n\n\nCopying a File or Directory
https:\/\/docs.oracle.com\/javase\/tutorial\/essential\/io\/copy.html<\/a><\/p>\n\n\n\nThe try-with-resources Statement
https:\/\/docs.oracle.com\/javase\/tutorial\/essential\/exceptions\/tryResourceClose.html<\/a><\/p>\n\n\n\nJava \u2013 Try with Resources
https:\/\/www.baeldung.com\/java-try-with-resources<\/a><\/p>\n\n\n\nThe try-with-resources statement
https:\/\/www.javatpoint.com\/java-try-with-resources<\/a><\/p>\n\n\n\njava try-with-resource\u8bed\u53e5\u4f7f\u7528
https:\/\/www.jianshu.com\/p\/258c5ce1a2bd<\/a><\/p>\n\n\n\n