基本操作--通过url获取资源

[java]代码库

package s0220通过url获取资源;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;

public class Main {

	public static void main(String[] args) throws IOException {
		
		URL url=new URL("http://www.baidu.com");//默认主页
		InputStream is=url.openStream();//获取网络流
		
		
		//获取网络资源,编码格式不同会出现乱码****************
		byte[] flush=new byte[1024];
		int len=0;
		while(-1!=(len=is.read(flush)))
		{
			
			System.out.println(new String(flush,0,len));
		}
        is.close();
         //获取网络资源,编码格式不同会出现乱码****************
        
        
        //解决乱码的方法,转换流
        BufferedReader br=new BufferedReader(new InputStreamReader(url.openStream(),"utf-8"));//解码方式,utf-8
        String msg=null;
        BufferedWriter bw=new BufferedWriter(new OutputStreamWriter(new FileOutputStream("百度.html"),"utf-8"));
        while((msg=br.readLine())!=null)
        {
        bw.append(msg);
        bw.newLine();     
        }
        bw.flush();
        bw.close();
        br.close();
	}

}