用java从网络上抓取HTML文件内容并写入本地文本中

原文地址：http://blog.csdn.net/java05/article/details/4001566

[java] view
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package Tech;



import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.net.URI;

import java.net.URISyntaxException;

import java.net.URL;



public class GetHtmlFile {



/**

* @param args

* @throws IOException

* @throws URISyntaxException

*/

public static void main(String[] args) throws IOException, URISyntaxException {

// TODO Auto-generated method stub

URL url= new URL("http://www.163.com");

InputStream is = url.openStream();

//OutputStream ois= url.openConnection().getOutputStream();

File file = new File(new URI("file:/c:/g3.txt"));

FileOutputStream fos = new FileOutputStream(file);

BufferedOutputStream bos = new BufferedOutputStream(fos);

int ch;

while((ch=is.read())!=-1)

{

bos.write(ch);

bos.flush();

//System.out.print((char)ch);

}



}



}







代码都是些基础代码，不过那个本地File的URI的创建搞了我很长时间，在网上也没搜到啥··



先后试过:



new URI("file://C://g.txt")

Exception:Illegal character in authority



new URI("file://C:/g.txt")

Exception:URI has an authority component



最后试出了结果

new URI("file:/c:/g3.txt")



最后从有关书籍上查得，正解应该是这样的.

URL url = new URL("file://" + realPath); //for Linux

URL url = new URL("file:///" + realPath); //for Windows