Java zip 压缩包下载excel文件

ZipUtil.java

 1 import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;


/**
 * @author Heloise.Tian
 *
 */
public class ZipUtil {

    public static String zipExportFiles(String outputFile, String files[]) throws IOException {

        File f = new File(outputFile);
        File parent = f.getParentFile();
        if (!parent.exists()) {
            parent.mkdirs();
        }

        // Create a buffer for reading the files
        byte[] buf = new byte[1024];

        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(f));
        // Compress the files
        for (int i = 0, j = files.length; i < j; i++) {
            File entryfile = new File(files[i]);
            FileInputStream in = new FileInputStream(entryfile);
            // Add ZIP entry to output stream.

            out.putNextEntry(new ZipEntry(entryfile.getName()));
            // Transfer bytes from the file to the ZIP file
            int len = 0;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
            // Complete the entry
            out.closeEntry();
            in.close();
        }

        out.close();
        return f.getAbsolutePath();
    }
}

调用方式：

String[] files = {tempExcel1Path, tempExcel2Path };
//Zip files.
ZipUtil.zipExportFiles(outZipFilePath, files);