Android studio socket客户端应用设计

一、XML布局设计：

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"><TextViewandroid:id="@+id/textView3"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginStart="64dp"android:layout_marginTop="32dp"android:gravity="center"android:text="IP地址："app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toTopOf="parent"tools:ignore="MissingConstraints" /><TextViewandroid:id="@+id/textView"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="30dp"android:gravity="center"android:text="端口号："app:layout_constraintEnd_toEndOf="@+id/textView3"app:layout_constraintTop_toBottomOf="@+id/textView3" /><TextViewandroid:id="@+id/textView2"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="30dp"android:gravity="center"android:text="发送数据："app:layout_constraintEnd_toEndOf="@+id/textView"app:layout_constraintTop_toBottomOf="@+id/textView" /><EditTextandroid:id="@+id/editTextTextPostalAddress"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginStart="8dp"android:ems="10"android:gravity="center"android:inputType="textPostalAddress"android:text="192.168.8.140"app:layout_constraintBottom_toBottomOf="@+id/textView3"app:layout_constraintStart_toEndOf="@+id/textView3"app:layout_constraintTop_toTopOf="@+id/textView3"tools:ignore="MissingConstraints" /><EditTextandroid:id="@+id/editTextTextPostalAddress2"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="5dp"android:ems="10"android:gravity="center"android:inputType="textPostalAddress"android:text="5050"app:layout_constraintBottom_toBottomOf="@+id/textView"app:layout_constraintStart_toStartOf="@+id/editTextTextPostalAddress"app:layout_constraintTop_toTopOf="@+id/textView" /><EditTextandroid:id="@+id/editTextTextPostalAddress3"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="6dp"android:ems="10"android:gravity="center"android:inputType="textPostalAddress"android:text="Hello!"app:layout_constraintBottom_toBottomOf="@+id/textView2"app:layout_constraintStart_toStartOf="@+id/editTextTextPostalAddress2"app:layout_constraintTop_toTopOf="@+id/textView2" /><Buttonandroid:id="@+id/button"android:layout_width="161dp"android:layout_height="50dp"android:layout_marginStart="16dp"android:layout_marginTop="16dp"android:layout_marginEnd="16dp"android:onClick="link"android:text="连接服务器"app:layout_constraintEnd_toEndOf="parent"app:layout_constraintStart_toEndOf="@+id/button2"app:layout_constraintTop_toBottomOf="@+id/editTextTextPersonName" /><Buttonandroid:id="@+id/button2"android:layout_width="147dp"android:layout_height="50dp"android:layout_marginStart="16dp"android:layout_marginEnd="16dp"android:onClick="transmitter"android:text="发送数据"app:layout_constraintEnd_toStartOf="@+id/button"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toTopOf="@+id/button" /><TextViewandroid:id="@+id/textView4"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="30dp"android:text="接收数据："android:gravity="center"app:layout_constraintEnd_toEndOf="@+id/textView2"app:layout_constraintTop_toBottomOf="@+id/textView2" /><EditTextandroid:id="@+id/editTextTextPersonName"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="6dp"android:ems="10"android:inputType="textPersonName"android:text=""android:gravity="center"app:layout_constraintBottom_toBottomOf="@+id/textView4"app:layout_constraintStart_toStartOf="@+id/editTextTextPostalAddress3"app:layout_constraintTop_toTopOf="@+id/textView4" /></androidx.constraintlayout.widget.ConstraintLayout>

二、增加wifi权限：

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>

三、MainActivity.java部分代码：

1）、连接服务器按钮onClick事件：public void link(View view) {if (btn1.getText().equals("连接服务器")) {ConnectThread connectthread = new ConnectThread();connectthread.start();btn1.setText("断开服务器");} else if (btn1.getText().equals("断开服务器")) {btn1.setText("连接服务器");try {socket.close();socket = null;} catch (Exception e) {e.printStackTrace();}}
}

2）、socket连接thread：

class ConnectThread extends Thread {public void run() {InetAddress ipAddress;try {if (socket == null) {ipAddress = InetAddress.getByName(ipEt.getText().toString());int port = Integer.valueOf(portEt.getText().toString());socket = new Socket(ipAddress, port);inputStream = socket.getInputStream();outputStream = socket.getOutputStream();ReadDataThread readDataThread = new ReadDataThread();readDataThread.start();}} catch (Exception e) {e.printStackTrace();}}}

3）、发送数据thread：

class SendDataThread extends Thread {public void run() {try {outputStream.write(txDataEt.getText().toString().getBytes());btn2.setText("发送完成");Thread.sleep(1000);btn2.setText("发送数据");} catch (Exception e) {e.printStackTrace();}}
}

4）、接收数据thread：

四、运行效果：

五、项目工程：

Androidstudiosocket客户端应用设计资源-CSDN文库