---> 不支持多线程
---> 依赖32位jdk,windows 和jna.jar
---> 依赖 XLDownload.dll, zlib1.dll 放置项目跟目录。不是src下，可以为绝对路径
package com.leunpha;
import com.sun.jna.Native;
import com.sun.jna.NativeLong;
import com.sun.jna.WString;
import com.sun.jna.ptr.LongByReference;
import com.sun.jna.ptr.NativeLongByReference;
import com.sun.jna.win32.StdCallLibrary;
import java.util.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.AtomicInteger;
public class XLDownLoader {
String FileName;
String Url;
long task;
/**
*
* @param FileName saved file path
* @param Url pre-downloaded url
* @param task taskid
*/
public XLDownLoader( String FileName,String Url,long task){
this.FileName=FileName;
this.Url=Url;
this.task=task;
}
public interface XLDownload extends StdCallLibrary {
public boolean XLInitDownloadEngine();
public int XLURLDownloadToFile(WString pszFileName, WString pszUrl, WString pszRefUrl, NativeLongByReference lTaskId);
public int XLQueryTaskInfo(NativeLong lTaskId, NativeLongByReference plStatus, LongByReference pullFileSize, LongByReference pullRecvSize);
public int XLPauseTask(long lTaskId, NativeLongByReference lNewTaskId);
public int XLContinueTask(long lTaskId);
public int XLContinueTaskFromTdFile(WString pszTdFileFullPath, NativeLongByReference lTaskId);
public void XLStopTask(long lTaskId);
public boolean XLUninitDownloadEngine();
}
/**
*
* @return 268435467 pre-downloaded file exist in specified file path
* -1 Fail to initialize(Fail to find DLL)
* 12 Succeed in downloading file of specified url
*/
public int startTask(String link){
XLDownload xldownload = (XLDownload) Native.loadLibrary(link,XLDownload.class);
if(false==xldownload.XLInitDownloadEngine()){
System.out.println("Initialize download engine failed");
return -1;
}
WString pszFileName=new WString(FileName);
WString pszUrl=new WString(Url);
WString pszRefUrl=new WString("");
NativeLong TaskId=new NativeLong(task);
NativeLongByReference lTaskId=new NativeLongByReference(TaskId);
int dwRet=xldownload.XLURLDownloadToFile(pszFileName,pszUrl ,pszRefUrl, lTaskId);
do{
LongByReference ullFileSize =new LongByReference(0);
LongByReference ullRecvSize =new LongByReference(0);
NativeLongByReference lStatus=new NativeLongByReference(new NativeLong(-1L));
dwRet=xldownload.XLQueryTaskInfo(TaskId,lStatus,ullFileSize,ullRecvSize);
if(0==dwRet){
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
if ( 0 != ullFileSize.getValue() )
{
double douProgress = (double)ullRecvSize.getValue()/(double)ullFileSize.getValue();
douProgress *= 100.0;
System.out.println(FileName+"Download progress:"+douProgress+"%");
}
else
{
System.out.println("File size is zero.\n");
}
if (11==lStatus.getValue().intValue())
{
System.out.println("Download successfully.\n");
break;
}
if ( 12==lStatus.getValue().intValue() )
{
System.out.println("Download failed.\n");
break;
}
}
}while(0==dwRet);
xldownload.XLStopTask(this.task);
xldownload.XLUninitDownloadEngine();
return 12;
}
public static void main(String[] args){
Map<String,String> info = new HashMap<String, String>();
info.put("e:\\temp\\18ec54e736d12f2ee6d124c84dc2d56284356846.jpg","http://h.hiphotos.bdimg.com/wisegame/pic/item/18ec54e736d12f2ee6d124c84dc2d56284356846.jpg");
info.put("e:\\temp\\9bdcd100baa1cd11d028f888bb12c8fcc2ce2df8.jpg","http://c.hiphotos.bdimg.com/wisegame/pic/item/9bdcd100baa1cd11d028f888bb12c8fcc2ce2df8.jpg");
info.put("e:\\temp\\2410b912c8fcc3cef9f7d0ab9045d688d43f2076.jpg","http://c.hiphotos.bdimg.com/wisegame/pic/item/2410b912c8fcc3cef9f7d0ab9045d688d43f2076.jpg");
info.put("e:\\temp\\579b033b5bb5c9eadd791d7bd739b6003bf3b3a4.jpg","http://a.hiphotos.bdimg.com/wisegame/pic/item/579b033b5bb5c9eadd791d7bd739b6003bf3b3a4.jpg");
info.put("e:\\temp\\aaea15ce36d3d5397db7115b3887e950342ab0a4.jpg","http://d.hiphotos.bdimg.com/wisegame/pic/item/aaea15ce36d3d5397db7115b3887e950342ab0a4.jpg");
info.put("e:\\temp\\abfcc3cec3fdfc03ae4ffa20d63f8794a4c22676.jpg","http://e.hiphotos.bdimg.com/wisegame/pic/item/abfcc3cec3fdfc03ae4ffa20d63f8794a4c22676.jpg");
info.put("e:\\temp\\f145d688d43f8794e4c851b6d01b0ef41bd53a76.jpg","http://a.hiphotos.bdimg.com/wisegame/pic/item/f145d688d43f8794e4c851b6d01b0ef41bd53a76.jpg");
// final AtomicInteger ai = new AtomicInteger(1);
// ExecutorService service = Executors.newFixedThreadPool(1);
// int i=1;
// List<Future> futures = new ArrayList<Future>();
for(final Map.Entry<String,String> entry: info.entrySet()){
//i++;
XLDownLoader instance=new XLDownLoader(entry.getKey(),entry.getValue(),0);
instance.startTask(String.format("XLDownload",1));
/*service.execute(new Runnable() {
@Override
public void run() {
com.leunpha.XLDownLoader instance=new com.leunpha.XLDownLoader(entry.getKey(),entry.getValue(),ai.get());
instance.startTask("E:\\xl\\"+ai.getAndIncrement()+"\\XLDownload.dll");
}
});
futures.add(service.submit(new Callable() {
@Override
public Object call() throws Exception {
return null;
}
}));*/
}
/* service.shutdown();
for(Future future:futures){
try {
future.get();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
}*/
}
}