java – 批量解压缩.gz文件

File outFile = new File(infile.getParent(),infile.getName().replaceAll(".gz$",""));

b)你只想解压缩文件吗？如果不是,您可以使用GZIPInputStream直接读取文件,即无需中间解压缩.

但是没问题.假设你真的只想解压缩文件.如果是这样,你可以使用这个：

public static File unGzip(File infile,boolean deleteGzipfileOnSuccess) throws IOException {
    GZIPInputStream gin = new GZIPInputStream(new FileInputStream(infile));
    FileOutputStream fos = null;
    try {
        File outFile = new File(infile.getParent(),""));
        fos = new FileOutputStream(outFile);
        byte[] buf = new byte[100000];
        int len;
        while ((len = gin.read(buf)) > 0) {
            fos.write(buf,len);
        }

        fos.close();
        if (deleteGzipfileOnSuccess) {
            infile.delete();
        }
        return outFile; 
    } finally {
        if (gin != null) {
            gin.close();    
        }
        if (fos != null) {
            fos.close();    
        }
    }       
}