采用linux下java http实现下载功能

[root@luozhonghua javacode]# vi getHttpResource.java
[root@luozhonghua javacode]# cat getHttpResource.java
/**
http获取文件
luozhonghua
*/


import java.io.*;
import java.net.*;


public class getHttpResource{


private boolean getRemoteFile(String strUrl,String fileName) throws IOException {
URL url=new URL(strUrl);
HttpURLConnection conn=(HttpURLConnection)url.openConnection();
DataInputStream input=new DataInputStream(conn.getInputStream());
DataOutputStream output=new DataOutputStream(new FileOutputStream(fileName));
byte [] buffer=new byte[1024*8];
int count=0;
while((count==input.read(buffer)) > 0){
output.write(buffer,0,count);
}
output.close();
input.close();
return true;
}


public static void main(String [] args){
System.out.println(new getHttpResource().getRemoteFile("http://mirrors.163.com/centos/4.0/readme","/usr/local/src/readme"));
}

}

[root@luozhonghua javacode]# javac getHttpResource.java

[root@luozhonghua javacode]# java getHttpResource
true