android tcpclient 多线程

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mob64ca12e01b7d 2024-07-02 06:13:04 ©著作权

文章标签 多线程 ide Android 文章分类 Android 移动开发

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Android TCPClient 多线程实现教程

1. 整体流程

下面是实现Android TCPClient多线程的步骤：

步骤	操作
1	创建TCPClient类，用于处理TCP连接
2	创建MainActivity类，用于启动TCPClient
3	在TCPClient中创建一个线程来处理TCP连接
4	在MainActivity中启动TCPClient线程
5	在TCPClient中实现TCP连接逻辑
6	在TCPClient中实现数据收发逻辑

2. 代码实现

TCPClient类

public class TCPClient {
    private String serverIp;
    private int serverPort;
    private Socket socket;
    private PrintWriter output;
    private BufferedReader input;

    public TCPClient(String ip, int port){
        serverIp = ip;
        serverPort = port;
    }

    public void connect(){
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    socket = new Socket(serverIp, serverPort);
                    output = new PrintWriter(socket.getOutputStream(), true);
                    input = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }

    public void send(String message){
        new Thread(new Runnable() {
            @Override
            public void run() {
                output.println(message);
            }
        }).start();
    }

    public String receive(){
        try {
            return input.readLine();
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }
}

MainActivity类

public class MainActivity extends AppCompatActivity {
    private TCPClient tcpClient;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        tcpClient = new TCPClient("127.0.0.1", 8080);
        tcpClient.connect();

        // 发送数据
        tcpClient.send("Hello, Server!");

        // 接收数据
        String receivedMessage = tcpClient.receive();
        Log.d("Received", receivedMessage);
    }
}

状态图

stateDiagram
    TCPClient --> Connected: 连接成功
    Connected --> Disconnected: 断开连接

序列图

sequenceDiagram
    participant MainActivity
    participant TCPClient

    MainActivity -> TCPClient: 创建TCPClient对象
    MainActivity -> TCPClient: 调用connect方法
    TCPClient -> TCPClient: 创建连接线程
    TCPClient -> TCPClient: 连接到服务器
    MainActivity -> TCPClient: 调用send方法
    TCPClient -> TCPClient: 创建发送线程
    TCPClient -> Server: 发送数据
    Server -> TCPClient: 返回数据
    TCPClient -> MainActivity: 接收到数据