java socket编程 怎么访问内网的服务器

在知道外网IP和内网IP的情况下，需要服务端和客户端分别怎么做，才能是客户端访问到内网的服务器？客户端是安卓

我的方向有点和你不一样,但是关于socket的一般是差不多的,建议你找找socket流的知识.
Socket内含输入，输出流，只需获取Socket的流对象，就可以对流进行读写操作了。比如，若想向Socket的输出流写数据，只须另一方从自己的Socket的输入流中读取数据即可给你个例子吧,是模拟客户端和服务器端的数据交互.
//客户端import java.io.BufferedReader;import java.io.InputStreamReader;import java.io.PrintStream;import java.net.Socket;
public class MyClent { public static void main(String[] args) { PrintStream ps = null; BufferedReader br = null; BufferedReader message = null; try { Socket scoket = new Socket("127.0.0.1", 1254); ps = new PrintStream(scoket.getOutputStream()); br = new BufferedReader(new InputStreamReader(scoket.getInputStream())); message = new BufferedReader(new InputStreamReader(System.in)); while(true){ ps.println("客户端向服务器发送的数据是:"+message.readLine()); System.out.println(br.readLine()); ps.flush(); } } catch (Exception e) { // TODO Auto-generated catch block...BufferedReader; TODO Auto-generated method stub PrintStream ps = null.getInputStream())).readLine()).
/ TODO Auto-generated catch block e; BufferedReader message = null，若想向Socket的输出流写数据.InputStreamReader.in))，只需获取Socket的流对象; BufferedReader br = null，就可以对流进行读写操作了;/.0;+message.flush().accept();/.net;import java;+message; ps.io,但是关于socket的一般是差不多的;font>.PrintStream, 1254); public static void main(String[] args) { /.BufferedReader;/客户端import java.io。比如;
public class MyServer {
/.Socket; try { ServerSocket server = new ServerSocket(1254).getOutputStream()).InputStreamReader.printStackTrace();p>，只须另一方从自己的Socket的输入流中读取数据即可给你个例子吧;** * @param args */
public class MyClent { public static void main(String[] args) { PrintStream ps = null.ServerSocket:"import java;服务器向客户端发送的数据是;服务器端import java; while(true){ System.getOutputStream()).println(".printStackTrace();/import java.flush().readLine());/.println(br; try { Socket scoket = new Socket("/import java; System,是模拟客户端和服务器端的数据交互.io.io;/ message = new BufferedReader(new InputStreamReader(System.println(br;127; ps,建议你找找socket流的知识.net; message = new BufferedReader(new InputStreamReader(System:"import java; ps = new PrintStream(scoket.println(".1"<.in)).0.PrintStream.io;/.readLine());客户端向服务器发送的数据是; } }
} while(true){ ps; } } catch (Exception e) { / BufferedReader br = null;/.
Socket内含输入.io; br = new BufferedReader(new InputStreamReader(scoket; ps = new PrintStream(scoket，输出流; } } catch (Exception e) { //我的方向有点和你不一样

我的方向有点和你不一样,但是关于socket的一般是差不多的,建议你找找socket流的知识.

socket内含输入，输出流，只需获取socket的流对象，就可以对流进行读写操作了。比如，若想向socket的输出流写数据，只须另一方从自己的socket的输入流中读取数据即可

给你个例子吧,是模拟客户端和服务器端的数据交互.

//客户端

import java.io.bufferedreader;

import java.io.inputstreamreader;

import java.io.printstream;

import java.net.socket;

public class myclent {

public static void main(string[] args) {

printstream ps = null;

bufferedreader br = null;

bufferedreader message = null;

try {

socket scoket = new socket("127.0.0.1", 1254);

ps = new printstream(scoket.getoutputstream());

br = new bufferedreader(new inputstreamreader(scoket.getinputstream()));

message = new bufferedreader(new inputstreamreader(system.in));

while(true){

ps.println("客户端向服务器发送的数据是:"+message.readline());

system.out.println(br.readline());

ps.flush();

}

}  catch (exception e) {

// todo auto-generated catch block

e.printstacktrace();

}

}

}

//服务器端

import java.io.bufferedreader;

import java.io.inputstreamreader;

import java.io.printstream;

import java.net.serversocket;

import java.net.socket;

public class myserver {

public static void main(string[] args) {

// todo auto-generated method stub

printstream ps = null;

bufferedreader br = null;

bufferedreader message = null;

try {

serversocket server = new serversocket(1254);

socket scoket = server.accept();

// new test(scoket);

ps = new printstream(scoket.getoutputstream());

br = new bufferedreader(new inputstreamreader(scoket.getinputstream()));

message = new bufferedreader(new inputstreamreader(system.in));

while(true){

system.out.println(br.readline());

ps.println("服务器向客户端发送的数据是:"+message.readline());

ps.flush();

}

} catch (exception e) {

// todo auto-generated catch block

e.printstacktrace();

}

}

}

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