"java 网络编程"简单总结

package com.shengshiyuan.network;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import java.net.URL;import java.net.URLConnection;public class UrlConnection1 {public static void main(String[] args) throws Exception {URL url = new URL("http://www.infoq.com");URLConnection conn = url.openConnection();InputStream is = conn.getInputStream();OutputStream os = new FileOutputStream("c:\\infoq.txt");byte[] buffer = new byte[1024];int length = 0;while (-1 != (length = is.read(buffer, 0, buffer.length))) {os.write(buffer, 0, length);}is.close();os.close();}}

package com.shengshiyuan.network;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import java.net.URL;import java.net.URLConnection;public class UrlConnection2 {public static void main(String[] args) throws Exception {URL url = new URL("http://www.qq.com");// URLConnection conn = url.openConnection();//// InputStream is = conn.getInputStream();// 更简单的方式InputStream is = url.openStream();OutputStream os = new FileOutputStream("c:\\infoq.txt");byte[] buffer = new byte[1024];int length = 0;while (-1 != (length = is.read(buffer, 0, buffer.length))) {os.write(buffer, 0, length);}is.close();os.close();}}