HttpClient client = null;
PostMethod method = null;

Protocol pt=null;       
if(protocolInfo.equals("http")){
    pt=new Protocol("http",new DefaultProtocolSocketFactory(),targetPort);
}else if(protocolInfo.equals("https")){
    pt=new Protocol("https",new SSLProtocolSocketFactory(),targetPort);
    Protocol.registerProtocol("https",pt);
}

HostConfiguration host=null;
host    = new HostConfiguration();
client  = new HttpClient();
method  = new PostMethod();

host.setHost(ip, "/TEST", targetPort, pt);
method.setPath("/TEST/Login");

method.addParameter("id", id);
method.addParameter("passwd", passwd);

int status = client.executeMethod(host, method);
if(status == HttpStatus.SC_OK) {
    br = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream()));
    while((line = br.readLine()) != null) {
        tmpBuffer.append(line);
    }
}else {
    return "FAIL";
}
흠.... 뭐 이정도?

File file = null;
file = new File("file_path",sendFileName);

NameValuePair strPair1 =  new NameValuePair("id",id);
NameValuePair strPair2 =  new NameValuePair("passwd",passwd);
NameValuePair strPair3 =  new NameValuePair("file_data",sendFileData);

MultipartPostMethod mMulti  = new MultipartPostMethod();
mMulti.addParameter("file_name",file);
mMulti.setQueryString(new NameValuePair[]{strPair1,strPair2,strPair3,strPair4,strPair5,strPair6,strPair7,strPair8,strPair9,strPair10});

HttpClient client = null;
MultipartPostMethod mMulti = multipostmethod;
Protocol pt=null;       

if(protocolInfo.equals("http")){
    pt=new Protocol("http",new DefaultProtocolSocketFactory(),targetPort);
}else if(protocolInfo.equals("https")){
    pt=new Protocol("https",new SSLProtocolSocketFactory(),targetPort);
    Protocol.registerProtocol("https",pt);
}
HostConfiguration host=null;
host    = new HostConfiguration();
client  = new HttpClient();

mMulti.setRequestHeader("Content-Type", "multipart/form-data; charset=UTF-8");
String strPath = "/TEST/Login";
host.setHost(ip, "/TEST", targetPort, pt);
mMulti.setPath(strPath);

BufferedReader br = null;
String line = "";
StringBuffer tmpBuffer = new StringBuffer();
int status = client.executeMethod(host, mMulti);
if(status == HttpStatus.SC_OK) {
    br = new BufferedReader(new InputStreamReader(mMulti.getResponseBodyAsStream()));
    while((line = br.readLine()) != null) {
        tmpBuffer.append(line);
    }
}
else {
    return "FAIL";
}
뭐.. 이정도면 샘플 정도 가능할꺼라 생각됨..+_+