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URL2FILE
Jeff · 2011-12-08 · via 博客园 - Jeff

2011-12-08 16:59  Jeff  阅读(1044)  评论()    收藏  举报

URL2File is a free Java application able to retrieve and save the content of a given URL to a local file. URL2File Java console-mode application can be used by itself or within a shell script to retrieve the content of an HTML document or other file from a remote Internet server to a local file.A typical example would be to write a shell script, such as a Windows command prompt BATch file, to download multiple files. Once the Java VM is successfully installed, copy URL2File.class to a directory of your choice and run it using the following syntax: java URL2File

伤不起,这个不是开源的?找不到源代码. 具体JAVA code的实现可以如下:
 
import java.net.*;
import java.io.*;
class url2file{
public static void main(String args[])throws IOException
{
int num1;
num1=1;
File fi3=new File(args[1]);
RandomAccessFile fi4=new RandomAccessFile(fi3,"rw");
URL urll=null;
try{
        urll=new URL(args[0]);
        DataInputStream dis;
        dis = new DataInputStream(urll.openStream());
        while((num1=dis.read())!=-1)
        {
                fi4.write((char)num1);
        }
        fi4.close();
        dis.close();
}
catch(MalformedURLException e)
{
        System.out.println(e);
        fi4.close();
}
catch(IOException e)
{
        System.out.println(e);
        fi4.close();
}
 
}
}