java修改ip
(2009-04-23 14:04:59)
标签:
it就业 |
package com.xyj.proxy;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.InetSocketAddress;
import java.net.MalformedURLException;
import java.net.Proxy;
import java.net.SocketAddress;
import java.net.URL;
import java.net.URLConnection;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class TestProxy {
public void setLocalProxy() {
Properties prop =
System.getProperties();
prop.setProperty( "http.proxyHost",
"222.222.222.222");
prop.setProperty( "http.proxyPort",
"3128");
}
// 清除proxy设置
public void removeLocalProxy()
{
Properties
prop = System.getProperties();
prop.remove( "http.proxyHost");
prop.remove( "http.proxyPort");
prop.remove( "http.nonProxyHosts");
prop.remove( "https.proxyHost");
prop.remove( "https.proxyPort");
prop.remove( "ftp.proxyHost");
prop.remove( "ftp.proxyPort");
prop.remove( "ftp.nonProxyHosts");
prop.remove( "socksProxyHost");
prop.remove( "socksProxyPort");
}
// 测试HTTP代理
//public void showHttpProxy(Object... proxy)
{
public void showHttpProxy(Object ... proxy) {
URL url = null;
try {
url = new URL("http://www.baidu.com");
} catch (MalformedURLException e) {
return;
}
try {
URLConnection conn =
null;
switch (proxy.length) {
case 0:
conn = url.openConnection();
break;
case 1:
conn = url.openConnection((Proxy)
proxy[0]);
break;
default:
break;
}
if (conn == null)
return;
conn.setConnectTimeout( 10000);
// 设置连接超时时间
InputStream in =
conn.getInputStream();
BufferedReader br =
new BufferedReader(new java.io.InputStreamReader(in));
String str =
null;
try {
while ((str =
br.readLine())!=null) {
if(str.indexOf("百度一下,你就知道")>0){
break;
}
}
} catch (IOException e1) {
}
} catch (IOException e1) {
return;
}
}
// 得到一个proxy
public static Proxy
getProxy(String host, int port)
{
SocketAddress addr =
new InetSocketAddress(host, port);
Proxy typeProxy =
new Proxy(Proxy.Type.HTTP, addr);
return typeProxy;
}
public void test(){
String pathurl =
"d:/temp.txt";
try {
File file = new File(pathurl);
FileInputStream fin =
new FileInputStream(file);
BufferedInputStream bin = new
BufferedInputStream(fin);
BufferedReader ir =
new BufferedReader(new InputStreamReader(bin));
String str =
null;
int count =
0;
StringBuffer ip =
new StringBuffer();
while ((str =
ir.readLine()) != null) {
String ipfilter =
"\\\\d{1,3}\\\\.\\\\d{1,3}\\\\.\\\\d{1,3}\\\\.\\\\d{1,3}";
Pattern p = Pattern.compile(ipfilter);
Matcher m = p.matcher(str);
if (m.find()) {
count ++;
String port =
str.substring(str.indexOf(":")+1,str.length());
if(port.indexOf("0")==0){
port = port.substring(2,
port.length());
}
String host =
m.group();
int po =
Integer.parseInt(port);
//System.out.println(host+"--"+port);
System.out.println( "----------"+count);
showHttpProxy(getProxy(host,po));
}
// 获取端口号
}
} catch (Exception e) {
}
//showHttpProxy(getProxy("58.211.78.143",80));
}
public static void main(String[] args) {
TestProxy proxy =
new TestProxy();
//proxy.setLocalProxy();
proxy.showHttpProxy(getProxy( "203.162.2.138",80));
}
}
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.InetSocketAddress;
import java.net.MalformedURLException;
import java.net.Proxy;
import java.net.SocketAddress;
import java.net.URL;
import java.net.URLConnection;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class TestProxy {
}
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