poco http for jni

poco_jni.cpp

/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class tutorial_myfirstapp_MainActivity */

#ifndef _Included_tutorial_myfirstapp_MainActivity
#define _Included_tutorial_myfirstapp_MainActivity
#ifdef __cplusplus
extern "C" {
#endif
/*
 * Class:     tutorial_myfirstapp_MainActivity
 * Method:    getHttpResponse
 * Signature: (Ljava/lang/String;)Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL Java_tutorial_myfirstapp_MainActivity_getHttpResponse
  (JNIEnv *, jobject, jstring);

#ifdef __cplusplus
}
#endif
#endif


//#include "tutorial_myfirstapp_MainActivity.h"
#include <iostream>
#include <sstream>
#include "Poco/Net/HTTPClientSession.h"
#include "Poco/Net/HTTPRequest.h"
#include "Poco/Net/HTTPResponse.h"
#include "Poco/StreamCopier.h"

using namespace std;
using namespace Poco;
using namespace Poco::Net;

std::string getHttpResponse(const char* url, int port = 80)
{
    HTTPClientSession s(url, 80);
    HTTPRequest request(HTTPRequest::HTTP_GET, "/index.html");
    s.sendRequest(request);
    HTTPResponse response;
    std::istream& rs = s.receiveResponse(response);
    std::ostringstream ostr;
    StreamCopier::copyStream(rs, ostr);
    return ostr.str();
}

JNIEXPORT jstring JNICALL Java_tutorial_myfirstapp_MainActivity_getHttpResponse(
    JNIEnv* env, jobject thisObj, jstring jurl)
{
    const char* url = env->GetStringUTFChars(jurl, NULL);
    std::string response = getHttpResponse(url);
    env->ReleaseStringUTFChars(jurl, url);
    return env->NewStringUTF(response.c_str());
}