Java實現檔案自動打包成zip並下載的程式碼
阿新 • • 發佈:2019-01-07
import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipOutputStream; public class ZipOutputStreamDemo { public static void main(String[] args) throws Exception { byte[] buffer = new byte[1024]; //生成的ZIP檔名為Demo.zip String strZipName = "Demo.zip"; ZipOutputStream out = new ZipOutputStream(new FileOutputStream(strZipName)); //需要同時下載的兩個檔案result.txt ,source.txt File[] file1 = {new File("result.txt"),new File("source.txt")}; for(int i=0;i<file1.length;i++) { FileInputStream fis = new FileInputStream(file1[i]); out.putNextEntry(new ZipEntry(file1[i].getName())); int len; //讀入需要下載的檔案的內容,打包到zip檔案 while((len = fis.read(buffer))>0) { out.write(buffer,0,len); } out.closeEntry(); fis.close(); } out.close(); System.out.println("生成Demo.zip成功"); }