public static String compressString(String str) throws IOException{
if (str == null || str.length() == 0) {
return str;
}
ByteArrayOutputStream out = new ByteArrayOutputStream();
GZIPOutputStream gzip = new GZIPOutputStream(out);
gzip.write(str.getBytes());
gzip.close();
Gdx.files.local("gziptest.gzip").writeString(out.toString(), false);
return out.toString();
}
当我将该字符串保存到文件中并在unix中运行gunzip -d file.txt
时,它会抱怨:
gzip: gzip.gz: not in gzip format
答案 0 :(得分:12)
尝试使用BufferedWriter
public static String compressString(String str) throws IOException{
if (str == null || str.length() == 0) {
return str;
}
BufferedWriter writer = null;
try{
File file = new File("your.gzip")
GZIPOutputStream zip = new GZIPOutputStream(new FileOutputStream(file));
writer = new BufferedWriter(new OutputStreamWriter(zip, "UTF-8"));
writer.append(str);
}
finally{
if(writer != null){
writer.close();
}
}
}
关于您的代码示例,请尝试:
public static String compressString(String str) throws IOException{
if (str == null || str.length() == 0) {
return str;
}
ByteArrayOutputStream out = new ByteArrayOutputStream(str.length());
GZIPOutputStream gzip = new GZIPOutputStream(out);
gzip.write(str.getBytes());
gzip.close();
byte[] compressedBytes = out.toByteArray();
Gdx.files.local("gziptest.gzip").writeBytes(compressedBytes, false);
out.close();
return out.toString(); // I would return compressedBytes instead String
}
答案 1 :(得分:3)
试试:
//...
String string = "string";
FileOutputStream fos = new FileOutputStream("filename.zip");
GZIPOutputStream gzos = new GZIPOutputStream(fos);
gzos.write(string.getBytes());
gzos.finish();
//...
答案 2 :(得分:0)
使用FileOutputStream
从out中保存字节FileOutputStream fos = new FileOutputStream("gziptest.gz");
fos.write(out.toByteArray());
fos.close();
out.toString()似乎是可疑的,结果将是不可读的,如果你不在乎为什么不返回byte [],如果你关心它会看起来更好像hex或base64字符串。