Java通过GZIP压缩和解压缩字符串源码

如下资料是关于Java通过GZIP压缩和解压缩字符串的代码。

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.util.zip.GZIPInputStream;

import java.util.zip.GZIPOutputStream;

public class MessageGZIP {

public String getEncode() {

return encode;

}

public void setEncode(String encode) {

MessageGZIP.encode = encode;

public static byte[] compressToByte(String str){

if (str == null || str.length() == 0) {

return null;

ByteArrayOutputStream out = new ByteArrayOutputStream();

GZIPOutputStream gzip;

try {

gzip = new GZIPOutputStream(out);

gzip.write(str.getBytes(encode));

gzip.close();

} catch (IOException e) {

e.printStackTrace();

return out.toByteArray();

public static byte[] compressToByte(String str,String encoding){

gzip.write(str.getBytes(encoding));

public static String uncompressToString(byte[] b) {

if (b == null || b.length == 0) {

ByteArrayInputStream in = new ByteArrayInputStream(b);

GZIPInputStream gunzip = new GZIPInputStream(in);

byte[] buffer = new byte[256];

int n;

while ((n = gunzip.read(buffer)) >= 0) {

out.write(buffer, 0, n);

return out.toString();

public static String uncompressToString(byte[] b, String encoding) {

return out.toString(encoding);