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/* Extract File From Zip File Using Command Line Arguments Example. This Java example shows how to extract file from zip file using Java command line arguments. */ import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; public class ExtractFileUsingCommandLine { public static void main(String args[]) { /* * This program expects two command line arguments * * 1. Path of zip file * 2. Destination path for extracted file */ //fetch command line arguments String strZipFile = args[0]; String strDestinationPath = args[1]; if(strZipFile == null || strZipFile.equals("")) { System.out.println("Invalid source file"); System.exit(0); } if(strDestinationPath == null || strDestinationPath.equals("")) { System.out.println("Invalid destination path"); System.exit(0); } try { //create FileInputStream from the source zip file FileInputStream fin = new FileInputStream(strZipFile); //create ZipInputStream from FileInputStream object ZipInputStream zin = new ZipInputStream(fin); //get the first entry from the source zip file ZipEntry entry = zin.getNextEntry(); //crate OutputStream to extract the entry from zip file OutputStream os = new FileOutputStream(strDestinationPath + "/" + entry.getName()); byte[] buffer = new byte[1024]; int length; //read the entry from zip file and extract it to disk while( (length = zin.read(buffer)) > 0) { os.write(buffer, 0, length); } //close the streams os.close(); //close the zip file zin.close(); System.out.println("File Extracted from zip file"); } catch(IOException e) { System.out.println("IOException :" + e); } } } /* Sample usage of this prgram java ExtractFileUsingCommandLine c:/sampleDoc.zip c: Output of this program would be File Extracted from zip file This program will extract file from C:/sampleDoc.zip to c:/ */ |
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