服务器
我认为这一面还可以，但我说我会为了确定而把它放上去。
import java.io.*;
import java.net.*;
public class Server_wifi {
public static void main(String[] args) throws Exception {
ServerSocket sersock = new ServerSocket(3000);
System.out.println("Server ready for chatting");
Socket sock = sersock.accept( );
// reading from keyboard (keyRead object)
BufferedReader keyRead = new BufferedReader(new InputStreamReader(System.in));
// sending to client (pwrite object)
OutputStream ostream = sock.getOutputStream();
PrintWriter pwrite = new PrintWriter(ostream, true);
// receiving from server ( receiveRead object)
InputStream istream = sock.getInputStream();
BufferedReader receiveRead = new BufferedReader(new InputStreamReader(istream));
String receiveMessage, sendMessage;
while(true) {
if((receiveMessage = receiveRead.readLine( )) != null) {
System.out.println(receiveMessage);
}
sendMessage = keyRead.readLine();
pwrite.println(sendMessage);
System.out.flush();
}
}
}
客户
我认为问题出在客户端，但似乎无法真正弄清楚在哪里。
package com.example.testprogram;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity {
private Socket server;
private PrintWriter printwriter;
private EditText textField;
private EditText textField2;
private Button button;
private String messsage;
private int x =0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textField = (EditText) findViewById(R.id.tf1); //reference to the text field
textField2 = (EditText) findViewById(R.id.tf2); //reference to the text field
button = (Button) findViewById(R.id.wifi); //reference to the send button
textField.setText("Started... ");
//Button press event listener
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
x++;
messsage = textField.getText().toString(); //get the text message on the text field
textField.setText(""); //Reset the text field to blank
System.out.println("Got here...");
try {
Socket sock = new Socket("172.16.71.175", 3000);
// reading from keyboard (keyRead object)
BufferedReader keyRead = new BufferedReader(new InputStreamReader(System.in));
// sending to client (pwrite object)
OutputStream ostream = sock.getOutputStream();
PrintWriter pwrite = new PrintWriter(ostream, true);
// receiving from server ( receiveRead object)
InputStream istream = sock.getInputStream();
BufferedReader receiveRead = new BufferedReader(new InputStreamReader(istream));
textField.setText("Start the chitchat, type and press Enter key");
String receiveMessage, sendMessage;
while(true) {
sendMessage = textField.getText().toString(); // keyboard reading
pwrite.println(sendMessage); // sending to server
System.out.flush(); // flush the data
if((receiveMessage = receiveRead.readLine()) != null) //receive from server
{
textField.setText(receiveMessage); // displaying at DOS prompt
}
}
}catch (UnknownHostException e) {
textField.setText("Unknown host");
e.printStackTrace();
} catch (IOException e) {
textField.setText("IO exception"+e.toString());
e.printStackTrace();
}
}
});
}
}
它似乎正在使我的应用程序崩溃，它也一直告诉我我错过了 } 来完成。我正在尝试在电话和计算机之间建立一个双向系统，请提供帮助。我提出了一个建议，比如建议让应用程序一直没有响应。