以下是PC端代码：
package com.example.sxb.myapplication;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
/**
* Created by Administrator on 2017/12/13.
*/
public class pcChat {
public static void main(String[] args)
{
//收
new Thread(){
@Override
public void run() {
try {
while(true){
//模拟器5554发，PC收
ServerSocket ss = new ServerSocket(7777);//PC端6666端口接收消息
Socket s = ss.accept ();
InputStream in = s.getInputStream();
byte[] buf = new byte[1024];
int num = in.read(buf);
String str = new String(buf,0,num);
System.out.println(s.getInetAddress().toString()+":"+str);
s.close();
ss.close();}
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
//发
new Thread(){
@Override
public void run() {
try {
while(true){
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = null;
System.out.println("请输入你要发送的内容：");
str = br.readLine();
System.out.println("你发送的消息:"+str);
//PC发，模拟器5554收
Socket s = new Socket("localhost",4444);//向模拟器4444端口号发送消息
OutputStream out = s.getOutputStream();
out.write(str.getBytes());
s.close();}
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
}
以下是模拟器端代码：
package com.example.sxb.myapplication;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
public class DochatActivity extends AppCompatActivity {
TextView tv_getMessage;
EditText et_setMessage;
Button bt_send;
String str;
Socket s;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dochat);
tv_getMessage=(TextView) findViewById(R.id.getMessage);
et_setMessage=(EditText) findViewById(R.id.et_setMessage);
bt_send=(Button) findViewById(R.id.bt_send);
new Thread(){
@Override
public void run() {
try {
//收
while(true){
//模拟器5554收，模拟器5556发
ServerSocket ss = new ServerSocket(4444);//模拟器4444接收消息
s = ss.accept ();
InputStream in = s.getInputStream();
byte[] buf = new byte[1024];
int num = in.read(buf);
str = new String(buf,0,num);
runOnUiThread(new Runnable() {
@Override
public void run() {
tv_getMessage.setText(s.getInetAddress().toString()+":"+str);
}
});
s.close();
ss.close();}
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
public void click(View v){
switch (v.getId()){
case R.id.bt_send:
new Thread(){
@Override
public void run() {
try {
//发
//模拟器5554发,PC收
Socket s = new Socket("10.0.2.2",7777);//向PC端7777发送消息
//模拟器5554发，模拟器5556收
// Socket s=new Socket("10.0.2.2",6666);//模拟器6666 6666端口号收
OutputStream out = s.getOutputStream();
out.write(et_setMessage.getText().toString().getBytes());
s.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
}
}
以下是布局文件：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/getMessage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="即将接收消息..."
/>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<EditText
android:id="@+id/et_setMessage"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:textSize="20sp"
android:hint="请输入消息"
/>
<Button
android:id="@+id/bt_send"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:text="发送"
android:layout_toRightOf="@+id/et_setMessage"
android:onClick="click"/>
</RelativeLayout>
</LinearLayout>
写完代码以后的操作步骤：
1.在cmd输入指令：telnet，检查telnet有没有打开；
2.控制面板》程序》程序和功能》打开或关闭Windows功能》勾选Telnet服务器和telnet客户端；
3.telnet localhost 5554(注意：打开模拟器5554之后操作这一步)；
4.去 C:Users eusoft.emulator_console_auth_token 下面用记事本打开复制token；
5.在cmd 输入 ：auth 44kZIm47P+BkAPhI；（不同电脑可能不一样，看token里面的数据）
6.在cmd输入：redir add tcp:4444:4444；
（端口重映射 ）
tcp:电脑端口号:模拟器端口号