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