Zlib压缩算法在Java与Delphi间交互实现

1//解压
2 public String decompressData(String encdata) {
3 try {
4 ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
5 InflaterOutputStream zos = new InflaterOutputStream(bos); 
6 zos.write(convertFromBase64(encdata)); 
7 zos.close(); 
8 return new String(bos.toByteArray()); 
9 } catch (Exception ex) {
10 ex.printStackTrace(); 
11 return "UNZIP_ERR"; 
12 }
13 }
14
15 //压缩
16 public String compressData(String data) {
17 try {
18 ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
19 DeflaterOutputStream zos = new DeflaterOutputStream(bos); 
20 zos.write(data.getBytes()); 
21 zos.close(); 
22 return new String(convertToBase64(bos.toByteArray())); 
23 } catch (Exception ex) {
24 ex.printStackTrace(); 
25 return "ZIP_ERR"; 
26 }
27 }

function Cmip_CompressStr(txt: PChar): pchar; stdcall; 
var
zip: TVclZip; 
compr: string; 
data: PChar; 
begin
zip := TVclZip.Create(nil); 
compr := zip.ZLibCompressString(txt); 
data := pchar(Base64EncodeStr(compr)); 
Result := StrNew(data); 
zip.Free
end; 

function Cmip_DeCompressStr(txt: PChar): pchar; stdcall; 
var
zip: TVCLUnZip; 
compr: string; 
data: PChar; 
begin
zip := TVCLUnZip.Create(nil); 
compr := zip.ZLibDecompressString(Base64DecodeStr(txt)); 
data := StrNew(pchar(compr)); 
Result := data; 
zip.Free
end;