Java通过gzip对字符串进行压缩和解压缩，javagzip,public stati

Java通过gzip对字符串进行压缩和解压缩，javagzip,public stati

public static String uncompressString(String str) throws IOException {    if (str == null ¦¦ str.length() == 0) {      return str;    }    ByteArrayOutputStream out = new ByteArrayOutputStream();    ByteArrayInputStream in = new ByteArrayInputStream(str        .getBytes("ISO-8859-1"));    GZIPInputStream gunzip = new GZIPInputStream(in);    byte[] buffer = new byte[256];    int n;    while ((n = gunzip.read(buffer)) >= 0) {      out.write(buffer, 0, n);    }    // toString()使用平台默认编码，也可以显式的指定如toString("GBK")    return out.toString();  }public static void main(String[] args) throws IOException {    String a = compressString("China");    System.out.println(a);    System.out.println(a.length());    String b = uncompressString(a);    System.out.println(b);}