hi all im tryting to create a wrapper dll for my java program which must decompress data using gzip.dll decompress algorithms.well its the same as c++ calling a dll thread posted my myself.using the help of user kbw i have made great progress.well but still i m not able to find the solution.im attaching the c++ dll code along with this message.well its a dll project to access gzip.dll methods.this dll file will be accessed by the following java program.
kartheepanmirra 0 Newbie Poster
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class HelloWorld */
#ifndef _Included_HelloWorld
#define _Included_HelloWorld
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: HelloWorld
* Method: print
* Signature: ()V
*/
JNIEXPORT void JNICALL Java_HelloWorld_print
(JNIEnv *, jobject);
/*
* Class: HelloWorld
* Method: Decompress
* Signature: (Ljava/lang/String;)Ljava/lang/String;
*/
JNIEXPORT jstring JNICALL Java_HelloWorld_Decompress
(JNIEnv *, jobject, jstring);
#ifdef __cplusplus
}
#endif
#endifimport java.io.*;
import javax.servlet.*;
import java.net.*;
class HelloWorld {
private native void print();
// public native long Decompress(long contextHandle,byte[] ByteArray,long orglength,byte[] buffer,long MAX_BUF,long inUsed,long outUsed);
public native String Decompress(String s);
public static void main(String[] args) {
new HelloWorld().print(); String inputS="";
try{
URL url1 = new URL("http://81.19.49.223:8201/commonwebprice/pricefetcher?symbols=JPY&period=T&format=2");
System.out.println("http://81.19.49.223:8201/commonwebprice/pricefetcher?symbols=JPY&period=T&format=2");
HttpURLConnection conn = (HttpURLConnection)url1.openConnection();
conn.connect();
if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
// response is good...
System.out.println("The Response isdss Good");
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
while ((line= in.readLine()) != null){
// parse incoming lines for your data
//loadProcessedData(line);
//System.out.println(line);
inputS=inputS+line;
}
// s=recvd[0].substring(recvd[0].lastIndexOf(">")+1,recvd[0].lastIndexOf(","));
in.close();
System.out.println("connected");
}
}catch(Exception e){}
try{
//gzip p = new gzip();
//byte[] ByteArray = new byte[8512];
//ByteArray=inputS.getBytes();
long contextHandle=0;
long MAX_BUF = 100000;
int GZIP_LVL= 1;
long outUsed=0;long inUsed=0;
//System.out.println("before"+inputS);
inputS=inputS.substring(inputS.indexOf(">")+1,inputS.lastIndexOf("<"));
System.out.println("after"+inputS);
byte[] ByteArray = inputS.getBytes();
long orglength=ByteArray.length;
//byte [] outBuf = new byte[43822];
byte [] outBuf = new byte[999];
// long orglength=8512;
System.out.println("before calling"+ByteArray);
//System.out.println("before calling");
long input = 1;
while(input!=0){
//input=new HelloWorld().Decompress(contextHandle, ByteArray, orglength, outBuf, MAX_BUF, inUsed, outUsed);
inputS=new HelloWorld().Decompress(inputS);
}
// System.out.println("User typed: " + input);
}catch(Exception e){
System.out.println("Error while calling decompress function"+e);
}
}
static {
System.loadLibrary("jj");
}
} This attachment is potentially unsafe to open. It may be an executable that is capable of making changes to your file system, or it may require specific software to open. Use caution and only open this attachment if you are comfortable working with x-rar files.
- 1 Contributor
- 0 Replies
- 52 Views
Be a part of the DaniWeb community
We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.