突破IP限制动态替换代理ip。

须要导入的两个jar包



实现的javabean

<span style="font-size:18px;">package com.jx.po;

public class ProxyPo {
private String id;
private String ip;
private String port;
private String area;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getIp() {
return ip;
}
public void setIp(String ip) {
this.ip = ip;
}
public String getPort() {
return port;
}
public void setPort(String port) {
this.port = port;
}
public String getArea() {
return area;
}
public void setArea(String area) {
this.area = area;
}
public ProxyPo(String id, String ip, String port, String area) {
super();
this.id = id;
this.ip = ip;
this.port = port;
this.area = area;
}

}</span>

工具类

<span style="font-size:18px;">package com.jx.util;

public class MathRodom {
public static int toRodom(int Max, int min) {
int i = (int) (min + Math.random() * (Max - min + 1));
return i;
}
}</span>

ProxyIp.class

<span style="font-size:18px;">package com.jx.util;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.Socket;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.apache.log4j.Logger;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.parser.Parser;
import org.jsoup.parser.XmlTreeBuilder;

import com.jlzx.po.ProxyPo;
import com.sun.jndi.toolkit.ctx.Continuation;

public class ProxyIp {
// private static final Logger log = Logger.getLogger(ProxyIp.class);
// private static final String Continu = null;

//为了突破IP限制须要动态替换代理ip。

public static void setProxy() {
// String str="";

System.setProperty("http.maxRedirects", "50");
System.getProperties().setProperty("proxySet", "true");

// 假设不设置，仅仅要代理IP和代理端口正确,此项不设置也能够
ProxyPo p1 = new ProxyPo("1", "41.231.53.41", "3128", "突尼斯");
ProxyPo p2 = new ProxyPo("2", "114.112.91.135", "3128", "北京市");
ProxyPo p3 = new ProxyPo("3", "111.161.126.83", "8080", "天津市 联通");
ProxyPo p4 = new ProxyPo("4", "111.161.126.84", "80", "天津市 联通");
ProxyPo p5 = new ProxyPo("5", "111.161.126.89", "8080", "天津市 联通");
ProxyPo p6 = new ProxyPo("6", "111.161.126.85", "80", "天津市 ");
ProxyPo p7 = new ProxyPo("7", "111.161.126.92", "8080", "突尼斯");
ProxyPo p8 = new ProxyPo("8", "183.224.1.30", "80", "昆明");
ProxyPo p9 = new ProxyPo("9", "111.161.126.88", "8080", "天津");
ProxyPo p10 = new ProxyPo("10", "14.18.16.67", "80", "广州");
ProxyPo p11 = new ProxyPo("11", "222.246.232.55", "80", "湖南");
ProxyPo p12 = new ProxyPo("12", "220.181.32.106", "80", "北京");
ProxyPo p13 = new ProxyPo("13", "202.108.23.247", "80", "北京");

ProxyPo p14 = new ProxyPo("14", "106.3.40.249", "8081", "北京");
ProxyPo p15 = new ProxyPo("15", "58.56.124.192", "80", "济南");
ProxyPo p16 = new ProxyPo("16", "223.202.3.49", "8080", "北京");
ProxyPo p17 = new ProxyPo("17", "218.4.236.117", "80", "江苏");
ProxyPo p18 = new ProxyPo("18", "120.210.202.4", "80", "安徽");
ProxyPo p19 = new ProxyPo("19", "121.10.252.139", "3128", "广东省肇庆市");
ProxyPo p20 = new ProxyPo("20", "60.250.81.118", "8080", "台湾");
ProxyPo p21 = new ProxyPo("21", "113.57.252.107", "80", "武汉");
ProxyPo p22 = new ProxyPo("22", "113.214.13.1", "8000", "浙江省杭州市 华数传媒");
ProxyPo p23 = new ProxyPo("23", "115.29.247.115", "8888", "北京市 万网IDC机房");
ProxyPo p24 = new ProxyPo("24", "202.106.169.228", "8080", "北京");
ProxyPo p25 = new ProxyPo("25", "122.96.59.106", "81", "南京");
ProxyPo p26 = new ProxyPo("26", "182.92.77.169", "3128",
"浙江省杭州市 阿里巴巴网络有限公司");
ProxyPo p27 = new ProxyPo("27", "113.214.13.1", "8000", "浙江省杭州市 华数传媒");
ProxyPo p28 = new ProxyPo("28", "122.96.59.106", "81", "南京");
ProxyPo p29 = new ProxyPo("29", "117.21.192.9", "80", "江西省 电信");
ProxyPo p30 = new ProxyPo("30", "113.57.230.49", "81", "湖北省武汉市 联通");
ProxyPo p31 = new ProxyPo("31", "223.68.6.10", "8000", "江苏省宿迁市 移动");
ProxyPo p32 = new ProxyPo("32", "115.28.23.36", "3128", "北京");
ProxyPo p33 = new ProxyPo("33", "122.96.59.106", "81", "江苏省南京市 联通");
ProxyPo p34 = new ProxyPo("34", "202.108.23.247", "80", "北京");
ProxyPo p35 = new ProxyPo("35", "124.207.175.91", "8080", "北京");
ProxyPo p36 = new ProxyPo("36", "120.192.200.72", "80", "西安");
ProxyPo p37 = new ProxyPo("37", "120.237.91.242", "3128", "北京");
ProxyPo p38 = new ProxyPo("38", "125.39.66.76", "80", "北京");
List<ProxyPo> list = new ArrayList();

list.add(p1);
list.add(p2);
list.add(p3);
list.add(p4);
list.add(p5);
list.add(p6);
list.add(p7);
list.add(p7);
list.add(p8);
list.add(p9);
list.add(p10);
list.add(p11);
list.add(p11);
list.add(p12);
list.add(p13);
list.add(p14);
list.add(p15);
list.add(p16);
list.add(p17);
list.add(p18);
list.add(p19);
list.add(p20);
list.add(p21);
list.add(p22);
list.add(p23);
list.add(p24);
list.add(p25);
list.add(p26);
list.add(p27);
list.add(p28);
list.add(p29);
list.add(p30);
list.add(p31);
list.add(p32);
list.add(p33);
list.add(p34);
list.add(p35);
list.add(p36);
list.add(p37);
list.add(p38);
int i = MathRodom.toRodom(38, 1);
System.getProperties().setProperty("http.proxyHost",
list.get(i).getIp());
System.getProperties().setProperty("http.proxyPort",
list.get(i).getPort());
System.out.println("代理serverIP::" + list.get(i).getIp() + "端口：："
+ list.get(i).getPort());
// 确定代理是否设置成功

}

public static Document getHtml(String url1) throws Exception {
// TODO Auto-generated method stub
Document doc = Jsoup.connect(url1).get();
return doc;
}

private static Document getHtmlStr(String address) throws Exception,
RuntimeException {
StringBuffer html = new StringBuffer();
String result = null;

URL url = new URL(address);

URLConnection conn = (URLConnection) url.openConnection();
conn.setConnectTimeout(1000 * 40);
conn.setRequestProperty("User-Agent",
"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0");
BufferedInputStream in = new BufferedInputStream(conn.getInputStream());

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;
}
result = new String(html.toString().trim().getBytes("ISO-8859-1"),
"utf-8").toLowerCase();
buf = null;
Document doc = Jsoup
.parse(result, "", new Parser(new XmlTreeBuilder()));
// System.out.println(result);
return doc;
}

public static void main(String[] args) throws Exception {
// Document htmlStr =
// ProxyIp.getHtmlStr("http://hehongwei44.iteye.com/blog/1494999");
// System.out.println("==="+htmlStr);
ProxyIp.setProxy();
System.out.println("==============");
}
}</span>

执行结果：



达到了代理的功能，自己的IP是 119.6.69.202 ，如今訪问的IP是183.224.1.30说明成功了。

使用动态IP须要注意的地方：

1、假设动态IP错误，会以本机网络IP訪问。假设port错误，会报错。

2、代理IP哪里来呢？ 我是从优易ip代理软件免费IP里找的，然后存到自己本机。假设对方封了我如今的IP，那么我就更换IP。