downloadgetfilelengh.java

这是一个由本人编写的基于java编写的实现文件下载的应用程序

package download;
//import java.util.*;
//import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;

public class DownloadGetFileLengh {

  public int getFileLength(String  url) throws Exception
{   int Length=0;
  URL downUrl=new URL(url);
HttpURLConnection httpconnection=(HttpURLConnection)downUrl.openConnection();
int stateCode=httpconnection.getResponseCode();
if(stateCode!=200)
{
Length=-1;	
}
int size=httpconnection.getContentLength();
Length=size;
return Length;
	}
  
  public boolean allIsStop(boolean [] isStop ) 
  {
	  boolean  stopFlag=false;
	 for(int i=0;i<isStop.length;)
	 {
		if(!isStop[i])
		{
			try{
			Thread.sleep(3000);
			}catch(Exception e)
			{e.printStackTrace();}
			stopFlag=false;
			}
		else{
			stopFlag=true;
		 i++;}
		 
		}
		return stopFlag;
  }
 
  
	
}