在 Java 中解压缩 GZIP 字符串
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/12531579/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Uncompress a GZIP string in Java
提问by vegidio
Possible Duplicate:
How to decompress a gzipped data in a byte array?
可能的重复：
如何解压缩字节数组中的 gzip 数据？
I have a Gzip'd byte array and I simply want to uncompress it and print the output. It's something like this:
我有一个 Gzip'd 字节数组，我只想解压缩它并打印输出。它是这样的：
byte[] gzip = getGZIPByteArray();
/* Code do uncompress the GZIP */
System.out.print(uncompressedGZIP);
Can anybody help me with the code in the middle?
有人可以帮我处理中间的代码吗？
回答by NovaDenizen
// With 'gzip' being the compressed buffer
java.io.ByteArrayInputStream bytein = new java.io.ByteArrayInputStream(gzip);
java.util.zip.GZIPInputStream gzin = new java.util.zip.GZIPInputStream(bytein);
java.io.ByteArrayOutputStream byteout = new java.io.ByteArrayOutputStream();
int res = 0;
byte buf[] = new byte[1024];
while (res >= 0) {
res = gzin.read(buf, 0, buf.length);
if (res > 0) {
byteout.write(buf, 0, res);
}
}
byte uncompressed[] = byteout.toByteArray();
回答by verisimilitude
The below method may give you a start :-
下面的方法可能会给你一个开始：-
public static byte[] decompress(byte[] contentBytes){
ByteArrayOutputStream out = new ByteArrayOutputStream();
try{
IOUtils.copy(new GZIPInputStream(new ByteArrayInputStream(contentBytes)), out);
} catch(IOException e){
throw new RuntimeException(e);
}
return out.toByteArray();
}
Ensure that you have the below in your classpath and importthem in your code.
确保您的类路径中有以下内容，而import代码中有它们。
import java.util.zip.*;
import org.apache.commons.io.IOUtils;
