package com.kuaff.jdk5package;

import java.io.ioexception;

import java.io.inputstream;

import java.net.inetsocketaddress;

import java.net.malformedurlexception;

import java.net.proxy;

import java.net.proxyselector;

import java.net.socketaddress;

import java.net.uri;

import java.net.urisyntaxexception;

import java.net.url;

import java.net.urlconnection;

import java.util.list;

import java.util.properties;

public class netproxy

{

// 测试本地jvm的网络缺省配置

public void setlocalproxy()

{

properties prop = system.getproperties();

//设置http访问要使用的代理服务器的地址

prop.setproperty("http.proxyhost", "10.10.0.96");

//设置http访问要使用的代理服务器的端口

prop.setproperty("http.proxyport", "8080");

//设置不需要通过代理服务器访问的主机，可以使用*通配符，多个地址用|分隔

prop.setproperty("http.nonproxyhosts", "localhost|10.10.*");

//设置安全访问使用的代理服务器地址与端口

//它没有https.nonproxyhosts属性，它按照http.nonproxyhosts 中设置的规则访问

prop.setproperty("https.proxyhost", "10.10.0.96");

prop.setproperty("https.proxyport", "443");

//使用ftp代理服务器的主机、端口以及不需要使用ftp代理服务器的主机

prop.setproperty("ftp.proxyhost", "10.10.0.96");

prop.setproperty("ftp.proxyport", "2121");

prop.setproperty("ftp.nonproxyhosts", "localhost|10.10.*");

//socks代理服务器的地址与端口

prop.setproperty("socksproxyhost", "10.10.0.96");

prop.setproperty("socksproxyport", "1080");

}

// 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

public void showhttpproxy(object... proxy)

{

url url = null;

try

{

url = new url("http://blog.csdn.com/smallnest");

}

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(3000); // 设置连接超时时间

inputstream in = conn.getinputstream();

byte[] b = new byte[1024];

try

{

while (in.read(b) > 0)

{

system.out.println(new string(b));

}

}

catch (ioexception e1)

{

}

}

catch (ioexception e1)

{

e1.printstacktrace();

}

}

// 测试ftp

public void showftpproxy(object... proxy)

{

url url = null;

try

{

url = new url("ftp://ftp.tsinghua.edu.cn");

}

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(3000); // 设置连接超时时间

inputstream in = conn.getinputstream();

byte[] b = new byte[1024];

try

{

while (in.read(b) > 0)

{

system.out.println(new string(b));

}

}

catch (ioexception e1)

{

}

}

catch (ioexception e1)

{

e1.printstacktrace();

}

}

// 得到一个proxy

public proxy getproxy(proxy.type type, string host, int port)

{

socketaddress addr = new inetsocketaddress(host,port);

proxy typeproxy = new proxy(type, addr);

return typeproxy;

}

public static void main(string[] args)

{

netproxy proxy = new netproxy();

//测试代理服务器

proxy.setlocalproxy();

proxy.showhttpproxy();

//下面两行是清除系统属性，而通过proxy类指定代理服务器

// proxy.removelocalproxy

//proxy.showhttpproxy(proxy.getproxy(proxy.type.socks,"10.10.0.96",1080));

}

}