用socket实现代理的样子的各种方式：socket实现方式,telnet 实现方式 ,http proxy 实现方式

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1.socket实现方式：

Java代码

public class TestMonitor {
public static void main(String[] args) throws IOException {
Socket socket = null;
// PrintWriter out = null;
BufferedReader in = null;
PrintStream ops= null;
try {
socket = new Socket(args[0], 4444);//参数为服务器的ip地址
ops=new PrintStream(socket.getOutputStream());
ops.println(args[1]); // 参数是发送到服务器上的请求信息
ops.flush();
// out = new PrintWriter(socket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
} catch (UnknownHostException e) {
System.err.println("Don't know about host:" + args[0]);
System.exit(1);
} catch (IOException e) {
System.err.println("Couldn't get I/O for the connection to: taranis.");
System.exit(1);
}
BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
String fromServer;
// String fromUser = stdIn.readLine();
// System.out.println("Client: " + fromUser);
// out.println(fromUser);
while ((fromServer = in.readLine()) != null) {
System.out.println("Server: " + fromServer);
if (fromServer.equals("Bye."))
break;
String fromUser = stdIn.readLine();
if (fromUser != null) {
System.out.println("Client: " + fromUser);
ops.println(fromUser);
}
}
ops.close();
in.close();
stdIn.close();
socket.close();
}
}

public class TestMonitor {public static void main(String[] args) throws IOException {        Socket socket = null;       // PrintWriter out = null;        BufferedReader in = null;        PrintStream ops= null;        try {        socket = new Socket(args[0], 4444);//参数为服务器的ip地址        ops=new PrintStream(socket.getOutputStream());        ops.println(args[1]); // 参数是发送到服务器上的请求信息        ops.flush();   //            out = new PrintWriter(socket.getOutputStream(), true);            in = new BufferedReader(new InputStreamReader(socket.getInputStream()));        } catch (UnknownHostException e) {            System.err.println("Don't know about host:" + args[0]);            System.exit(1);        } catch (IOException e) {            System.err.println("Couldn't get I/O for the connection to: taranis.");            System.exit(1);        }        BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));        String fromServer;//        String fromUser = stdIn.readLine();//        System.out.println("Client: " + fromUser);//        out.println(fromUser);        while ((fromServer = in.readLine()) != null) {            System.out.println("Server: " + fromServer);            if (fromServer.equals("Bye."))                break;            String fromUser = stdIn.readLine();    if (fromUser != null) {                System.out.println("Client: " + fromUser);                ops.println(fromUser);    }        }        ops.close();        in.close();        stdIn.close();        socket.close();    }}

2.telnet 实现方式
这个要加个jar包: commons-net-2.0.jar

Java代码

public class TestTelnet {
/**
* @param args
*/
public static void main(String[] args) {
TelnetClient tc=new TelnetClient();
PrintStream ops= null;
BufferedReader in = null;
try {
tc.connect("172.16.100.87", 4444);//连接的服务器和端口
System.out.println("test cennection:"+tc.isConnected());
ops=new PrintStream(tc.getOutputStream());
ops.println("/refreshapps"); // 是发送到服务器上的请求信息
ops.flush();
in = new BufferedReader(new InputStreamReader(tc.getInputStream()));
// System.out.println( "AAA"+in.readLine());
char[] bs=new char[256];
int i=0;
while((i=in.read(bs))>-1){
String str=null;
if(i==256){
str=new String(bs);
}else{
char[] bs2=new char[i];
for(int j=0;j<i;j++)
{
bs2[j]=bs[j];
}
str=new String(bs2);
}
System.out.println(str);
}
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}

public class TestTelnet {/** * @param args */public static void main(String[] args) {TelnetClient tc=new TelnetClient();PrintStream ops= null; BufferedReader in = null;try {tc.connect("172.16.100.87", 4444);//连接的服务器和端口System.out.println("test cennection:"+tc.isConnected());ops=new PrintStream(tc.getOutputStream());ops.println("/refreshapps"); // 是发送到服务器上的请求信息ops.flush();    in = new BufferedReader(new InputStreamReader(tc.getInputStream()));  // System.out.println( "AAA"+in.readLine());char[] bs=new char[256];int i=0;while((i=in.read(bs))>-1){String str=null;if(i==256){str=new String(bs);}else{char[] bs2=new char[i];for(int j=0;j<i;j++){bs2[j]=bs[j];}str=new String(bs2);}System.out.println(str);}} catch (SocketException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}}

3.http proxy 实现方式

Java代码

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.Properties;
public class TestProxy {
/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
// String strUrl="http://blog.csdn.net/cqq/";
// URL url = new URL(strUrl);
URL url = new URL("http", "172.16.100.87", 4444, "");//所请求服务器的ip地址和端口
URLConnection conn = url.openConnection();
String strProxy = "172.16.10.133";//代理服务器的ip
String strPort = "4444";//端口
Properties systemProperties = System.getProperties();
systemProperties.setProperty("http.proxyHost", strProxy);
systemProperties.setProperty("http.proxyPort", strPort);
BufferedReader rd = new BufferedReader(new InputStreamReader(conn
.getInputStream()));
String ss = null;
while ((ss = rd.readLine()) != null) {
System.out.println(ss);
}
rd.close();
}
}