Java设置代理IP访问网站

本网站用的阿里云ECS,推荐大家用。自己搞个学习研究也不错
  1.源码
  import java.io.BufferedInputStream;
  import java.net.URL;
  import java.net.URLConnection;
  public class TestProxyIp {
  public static void main(String args[]){
  //System.getProperties().setProperty(“proxySet”, “true”); //如果不设置,只要代理IP和代理端口正确,此项不设置也可以
  System.getProperties().setProperty(“http.proxyHost”, “218.26.204.66”);
  System.getProperties().setProperty(“http.proxyPort”, “8080”);
  System.out.println(getHtml(“http://www.ip138.com/ip2city.asp”)); //判断代理是否设置成功
  }
  private static String getHtml(String address){
  StringBuffer html = new StringBuffer();
  String result = null;
  try{
  URL url = new URL(address);
  URLConnection conn = url.openConnection();
  conn.setRequestProperty(“User-Agent”,”Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB5; .NET CLR 2.0.50727; CIBA)”);
  BufferedInputStream in = new BufferedInputStream(conn.getInputStream());
  try {
  String inputLine;
  byte[] buf = new byte[4096];
  int bytesRead = 0;
  while (bytesRead >= 0) {
  inputLine = new String(buf, 0, bytesRead, “ISO-8859-1”);
  html.append(inputLine);
  bytesRead = in.read(buf);
  inputLine = null;
  }
  buf = null;
  } finally {
  in.close();
  conn = null;
  url = null;
  }
  result = new String(html.toString().trim().getBytes(“ISO-8859-1”), “gb2312”).toLowerCase();
  }catch(Exception e){
  e.printStackTrace();
  return null;
  }
  html = null;
  return result;
  }
  }
  2.结果

<img alt="Java设置代理IP访问网站www.linuxidc.com" src="http://www.linuxidc.com/u

未经允许不得转载:演道网 » Java设置代理IP访问网站

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