使用Java将ZipOutputStream保存到zip文件

时间:2015-02-20 12:49:52

标签: java memory zip zipoutputstream

我必须在内存中创建ZIP存档 但现在,我需要将它保存在磁盘中的真实.zip文件中。怎么做? 伪代码:

public byte[] crtZipByteArray(ByteArrayInputStream data,ZipEntry entry) throws IOException{
     ByteArrayOutputStream zipout = new ByteArrayOutputStream(); 
    ZipOutputStream zos = new ZipOutputStream(zipout);
    byte[] buffer = new byte[1024];
    int len;
    zos.putNextEntry(entry);
    while ((len = data.read(buffer)) > 0) {
        zos.write(buffer, 0, len);
    }
    zos.closeEntry();

    zos.close();
    data.close();
    return zipout.toByteArray();
}

1 个答案:

答案 0 :(得分:0)

ByteArrayOutputStream zipout替换为FileOutputStream zipout

如果仍然需要返回字节数组作为方法结果,请使用apache commons TeeOutputStream来复制两个流的输出。

public byte[] crtZipByteArray(ByteArrayInputStream data,ZipEntry entry) throws IOException{
        ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream(); 
        OutputStream fileOut = new FileOutputStream("filename.zip");
        OutputStream teeOut = new TeeOutputStream(byteArrayOut, fileOut);
        ZipOutputStream zos = new ZipOutputStream(teeOut);
.....
}