因此,基本上来说,总结是,我将从一个文件夹中提取一个.zip文件到另一个文件夹中。我为此使用Java示例代码,因为我以前从未使用过java.util.zip。看起来很简单,但是我的代码仍然遇到一些奇怪的问题
好的,
package com.supercas240.RaidEvents.Main;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
public class UnzipUtility {
/**
* Size of the buffer to read/write data
*/
private static final int BUFFER_SIZE = 4096;
/**
* Extracts a zip file specified by the zipFilePath to a directory specified by
* destDirectory (will be created if does not exists)
* @param zipFilePath
* @param destDirectory
* @throws IOException
*/
public void unzip(String zipFilePath, String destDirectory) throws IOException {
File destDir = new File(destDirectory);
if (!destDir.exists()) {
destDir.mkdir();
}
ZipInputStream zipIn = new ZipInputStream(new FileInputStream(zipFilePath));
ZipEntry entry = zipIn.getNextEntry();
// iterates over entries in the zip file
while (entry != null) {
String filePath = destDirectory + File.separator + entry.getName();
if (!entry.isDirectory()) {
// if the entry is a file, extracts it
extractFile(zipIn, filePath);
} else {
// if the entry is a directory, make the directory
File dir = new File(filePath);
dir.mkdir();
}
zipIn.closeEntry();
entry = zipIn.getNextEntry();
}
zipIn.close();
}
/**
* Extracts a zip entry (file entry)
* @param zipIn
* @param filePath
* @throws IOException
*/
private void extractFile(ZipInputStream zipIn, String filePath) throws IOException {
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
byte[] bytesIn = new byte[BUFFER_SIZE];
int read = 0;
while ((read = zipIn.read(bytesIn)) != -1) {
bos.write(bytesIn, 0, read);
}
bos.close();
}
}
是我提取文件的类设置。当前正在测试中,在主类中,我通过以下方式调用该类:
public class Main extends JavaPlugin implements Listener {
public String zipFilePath = this.getServer().getWorldContainer().getAbsolutePath() + "\\plugins\\RaidEvents\\world_RaidEvents.zip";
public String destDirectory = this.getServer().getWorldContainer().getAbsolutePath();
UnzipUtility unzip = new UnzipUtility();
public void onEnable() {
try {
unzip.unzip(zipFilePath, destDirectory);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
在我解释我的错误不适之前,请先显示它:
所以代码基本上要做的是:它获取目标目录,如果不存在,它将成为目标目录:
File destDir = new File(destDirectory);
if (!destDir.exists()) {
destDir.mkdir();
}
然后,它开始遍历.zip中的所有文件,如果它是目录,则创建它;如果是它的文件,它将复制它:
ZipInputStream zipIn = new ZipInputStream(new FileInputStream(zipFilePath));
ZipEntry entry = zipIn.getNextEntry();
// iterates over entries in the zip file
while (entry != null) {
String filePath = destDirectory + File.separator + entry.getName();
if (!entry.isDirectory()) {
// if the entry is a file, extracts it
extractFile(zipIn, filePath);
} else {
// if the entry is a directory, make the directory
File dir = new File(filePath);
dir.mkdir();
}
zipIn.closeEntry();
entry = zipIn.getNextEntry();
}
所以这似乎行得通吗?仍然,如果我们查看错误,似乎是在遍历目录时并没有创建目录,并且当目录到达villagers.dat时,找不到目录来放置它?我现在有点迷路了。 zip文件目录正确,称为“ world_RaidEvents.zip”。