ZipUtil.java

 1 import java.io.File;
 2 import java.io.FileInputStream;
 3 import java.io.FileOutputStream;
 4 import java.io.IOException;
 5 
 6 import org.apache.tools.zip.ZipEntry;
 7 import org.apache.tools.zip.ZipOutputStream;
 8 
 9 
10 /**
11  * @author Heloise.Tian
12  *
13  */
14 public class ZipUtil {
15 
16     public static String zipExportFiles(String outputFile, String files[]) throws IOException {
17 
18         File f = new File(outputFile);
19         File parent = f.getParentFile();
20         if (!parent.exists()) {
21             parent.mkdirs();
22         }
23 
24         // Create a buffer for reading the files
25         byte[] buf = new byte[1024];
26 
27         ZipOutputStream out = new ZipOutputStream(new FileOutputStream(f));
28         // Compress the files
29         for (int i = 0, j = files.length; i < j; i++) {
30             File entryfile = new File(files[i]);
31             FileInputStream in = new FileInputStream(entryfile);
32             // Add ZIP entry to output stream.
33 
34             out.putNextEntry(new ZipEntry(entryfile.getName()));
35             // Transfer bytes from the file to the ZIP file
36             int len = 0;
37             while ((len = in.read(buf)) > 0) {
38                 out.write(buf, 0, len);
39             }
40             // Complete the entry
41             out.closeEntry();
42             in.close();
43         }
44 
45         out.close();
46         return f.getAbsolutePath();
47     }
48 }

调用方式：

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