如何使用InputStream从ZIP读取文件？ [英] How to read file from ZIP using InputStream?

问题描述

我必须使用SFTP从ZIP存档（只有一个文件，我知道它的名字）中获取文件内容。我唯一拥有的是ZIP的 InputStream 。大多数示例显示如何使用此语句获取内容：

I must get file content from ZIP archive (only one file, I know its name) using SFTP. The only thing I'm having is ZIP's InputStream. Most examples show how get content using this statement:

ZipFile zipFile = new ZipFile("location");

但正如我所说，我的本地机器上没有ZIP文件而我没有想下载它。 InputStream 是否足以阅读？

But as I said, I don't have ZIP file on my local machine and I don't want to download it. Is an InputStream enough to read?

UPD：我这样做：

import java.util.zip.ZipInputStream;

import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;

public class SFTP {


    public static void main(String[] args) {

        String SFTPHOST = "host";
        int SFTPPORT = 3232;
        String SFTPUSER = "user";
        String SFTPPASS = "mypass";
        String SFTPWORKINGDIR = "/dir/work";
        Session session = null;
        Channel channel = null;
        ChannelSftp channelSftp = null;
        try {
            JSch jsch = new JSch();
            session = jsch.getSession(SFTPUSER, SFTPHOST, SFTPPORT);
            session.setPassword(SFTPPASS);
            java.util.Properties config = new java.util.Properties();
            config.put("StrictHostKeyChecking", "no");
            session.setConfig(config);
            session.connect();
            channel = session.openChannel("sftp");
            channel.connect();
            channelSftp = (ChannelSftp) channel;
            channelSftp.cd(SFTPWORKINGDIR);
            ZipInputStream stream = new ZipInputStream(channelSftp.get("file.zip"));
            ZipEntry entry = zipStream.getNextEntry();
            System.out.println(entry.getName); //Yes, I got its name, now I need to get content
        } catch (Exception ex) {
            ex.printStackTrace();
        } finally {
            session.disconnect();
            channelSftp.disconnect();
            channel.disconnect();
        }


    }
}

推荐答案

好吧，我已经这样做了：

Well, I've done this:

 zipStream = new ZipInputStream(channelSftp.get("Port_Increment_201405261400_2251.zip"));
 zipStream.getNextEntry();

 sc = new Scanner(zipStream);
 while (sc.hasNextLine()) {
     System.out.println(sc.nextLine());
 }

它帮助我阅读ZIP的内容而无需写入其他文件。

It helps me to read ZIP's content without writing to another file.

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