[英]How can I read files from Zip file to memory with Java?
我從SUN網站(http://java.sun.com/developer/technicalArticles/Programming/compression/)找到了示例,但它返回了BufferedOutputStream。 但是我想將ZipEntry文件作為InputStream,然后處理下一個文件。 那可能嗎? 我的程序無法訪問硬盤,因此它甚至無法臨時保存文件。
import java.io.*;
import java.util.zip.*;
public class UnZip {
final int BUFFER = 2048;
public static void main (String argv[]) {
try {
BufferedOutputStream dest = null;
FileInputStream fis = new
FileInputStream(argv[0]);
ZipInputStream zis = new
ZipInputStream(new BufferedInputStream(fis));
ZipEntry entry;
while((entry = zis.getNextEntry()) != null) {
System.out.println("Extracting: " +entry);
int count;
byte data[] = new byte[BUFFER];
// write the files to the disk
FileOutputStream fos = new
FileOutputStream(entry.getName());
dest = new
BufferedOutputStream(fos, BUFFER);
while ((count = zis.read(data, 0, BUFFER))
!= -1) {
dest.write(data, 0, count);
}
dest.flush();
dest.close();
}
zis.close();
} catch(Exception e) {
e.printStackTrace();
}
}
}
好吧,只需將將文件寫入文件的部分更改為您想要處理的數據即可。
while((entry = zis.getNextEntry()) != null) {
System.out.println("Extracting: " + entry);
int count;
byte[] data = new byte[BUFFER];
String filename = entry.getName();
System.out.println("Filename: " + filename);
while ((count = zis.read(data, 0, BUFFER)) != -1) {
// Do whatever you want with the data variable
System.out.println(data);
}
}
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