java 获取网页内容
2010-04-19 20:30
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package test; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.Authenticator; import java.net.HttpURLConnection; import java.net.PasswordAuthentication; import java.net.URL; import java.net.URLConnection; import java.util.Properties; public class URLTest { // 一个public方法,返回字符串,错误则返回"error open url" public static String getContent(String strUrl) { try { URL url = new URL(strUrl); BufferedReader br = new BufferedReader(new InputStreamReader(url .openStream())); String s = ""; StringBuffer sb = new StringBuffer(""); while ((s = br.readLine()) != null) { sb.append(s + "/r/n"); } br.close(); return sb.toString(); } catch (Exception e) { return "error open url:" + strUrl; } } public static void initProxy(String host, int port, final String username, final String password) { Authenticator.setDefault(new Authenticator() { protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(username, new String(password).toCharArray()); } }); System.setProperty("http.proxyType", "4"); System.setProperty("http.proxyPort", Integer.toString(port)); System.setProperty("http.proxyHost", host); System.setProperty("http.proxySet", "true"); } public static void main(String[] args) throws IOException { String url = "http://java.sun.com"; String proxy = "http://192.168.22.81"; int port = 80; String username = "username"; String password = "password"; String curLine = ""; String content = ""; URL server = new URL(url); initProxy(proxy, port, username, password); HttpURLConnection connection = (HttpURLConnection) server .openConnection(); connection.connect(); InputStream is = connection.getInputStream(); BufferedReader reader = new BufferedReader(new InputStreamReader(is)); while ((curLine = reader.readLine()) != null) { content = content + curLine+ "/r/n"; } System.out.println("content= " + content); is.close(); System.out.println(getContent(url)); } } 本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/zhengjianqi/archive/2008/07/04/2611661.aspxjava 获取网页内容
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