在Android上使用TcpClient来接收文档并打印数据,可以按照以下步骤进行:
这是因为我们需要使用网络连接。
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
public class TcpClient {
private Socket socket;
private BufferedReader in;
private PrintWriter out;
private String serverIP;
private int serverPort;
public TcpClient(String ip, int port) {
serverIP = ip;
serverPort = port;
}
public void connect() {
try {
socket = new Socket(serverIP, serverPort);
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
out = new PrintWriter(socket.getOutputStream(), true);
} catch (IOException e) {
e.printStackTrace();
}
}
public void receiveAndPrintDocument() {
try {
String line;
while ((line = in.readLine()) != null) {
System.out.println(line); // 在控制台打印文档数据
// 这里你可以根据需求进行处理,例如将文档数据显示在TextView上
}
} catch (IOException e) {
e.printStackTrace();
}
}
public void disconnect() {
try {
if (socket != null) {
socket.close();
}
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
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("YOUR_SERVER_IP", YOUR_SERVER_PORT);
new ConnectTask().execute();
}
private class ConnectTask extends AsyncTask {
@Override
protected Void doInBackground(Void... voids) {
tcpClient.connect();
tcpClient.receiveAndPrintDocument();
tcpClient.disconnect();
return null;
}
}
}
在上面的代码中,需要将"YOUR_SERVER_IP"和"YOUR_SERVER_PORT"替换为实际的服务器IP地址和端口号。
这样,当应用程序启动时,它将连接到服务器并开始接收文档数据,并在控制台上打印出来。你可以根据需求进行进一步的处理,例如将文档数据显示在TextView上。