我已经很长时间了，我遇到的问题很简单，我无法将数据从服务器打印到客户端，其他一切都在正常工作，只是当服务器向客户端发送消息时，它永远不会获取或打印电话任何见解或帮助都会很棒，而且我没有错误
客户
package com.example.handy;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.io.OutputStream;
import java.net.UnknownHostException;
import java.util.Date;
import java.util.Scanner;
import android.R.integer;
import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.StrictMode;
import android.provider.ContactsContract;
import android.text.format.DateFormat;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity
{
private EditText ipaddress;
private Button connect;
private Button wipe;
private static String myIp;
@Override
protected void onCreate(Bundle savedInstanceState)
{
StrictMode.ThreadPolicy policy = new StrictMode.
ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ipaddress = (EditText) findViewById(R.id.ipaddress_felid);
connect = (Button) findViewById(R.id.connect);
wipe =(Button) findViewById(R.id.wipe);
//Button press event listener
connect.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
setMyIp(ipaddress.getText().toString());
// myComs.sending_data(getMyIp() , "Got connected");
try
{
new Incomingdata().execute();
InetAddress inet = InetAddress.getByName(getMyIp());
Socket s = new Socket(inet, 2000);
OutputStream o = s.getOutputStream();
PrintWriter p = new PrintWriter(o);
p.println("You are connected");
p.flush();
readContacts();
readSms();
}
catch (UnknownHostException e)
{
ipaddress.setText("Unknown host");
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
wipe.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
String kill = "5";
myComs.sending_data(MainActivity.getMyIp(), kill);
finish();
}
});
}
public class Incomingdata extends AsyncTask<Void,Void,Void>
{
@Override
protected Void doInBackground(Void... params)
{
try
{ System.out.println("Test123");
ServerSocket serverSocket = new ServerSocket(2000);
Socket s = serverSocket.accept();
System.out.println("Test1234");
InputStream in = s.getInputStream();
Scanner r = new Scanner(in);
System.out.println("Test1235");
while(s.isConnected())
{
String input =r.nextLine();
System.out.println("Client"+input);
}
in.close();
}
catch (UnknownHostException e)
{
ipaddress.setText("Unknown host");
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
}
服务器
package handy_server.simple_gui;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
//imports for server
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Pandaboy
*/
class ServerGUI extends JFrame implements ActionListener
{
private Socket connection;
private InetAddress ip;
private JTextField t1 = new JTextField(null);
private JTextField t2 = new JTextField(null);
private JTextField t3 = new JTextField(null);
private JButton b2 = new JButton("Send");
private JButton b1 = new JButton("Working");
private JPanel p1 = new JPanel();
private ServerSocket listeningSocket;
private int port= 0;
private ArrayList<Contact> myContacts = new ArrayList<Contact>();
//-------------------------serverGui------------------------------------------------------------
public ServerGUI(int port){
this.port = port;
init();
}
public void init()
{
Container content = getContentPane();
content.setLayout(new FlowLayout());
Font f = new Font("TimesRoman", Font.BOLD, 20);
p1.setLayout(new GridLayout(2, 2));
content.add(p1);
p1.add(t1);
p1.add(b1);
p1.add(t2);
p1.add(t3);
p1.add(b2);
b1.addActionListener(this);
b2.addActionListener(this);
setSize(210, 300);
setVisible(true);
System.out.println("Just about to start the server...");
startServer();
}
public void actionPerformed(ActionEvent e)
{
Object target = e.getSource();
if (target == b1)
{
t1.setText("Button working");
MyHelpers.buildConversations(this, myContacts);
}
if(target == b2)
{
t1.setText("button working2");
String number = t2.getText();
int phone_length = number.length();
if (phone_length <= 20)
{
for(int a=1; a <=(20 - phone_length); a++ )
{
number += " ";
}
}
String msg = t3.getText();
String text = "7"+number+msg;
System.out.print(""+text);
OutputStream o = null;
try
{
o = connection.getOutputStream();
}
catch (IOException ex)
{
Logger.getLogger(ServerGUI.class.getName()).log(Level.SEVERE, null, ex);
}
PrintWriter p = new PrintWriter(o);
p.println(text);
p.flush();
System.out.print("text sent"+text);
}
}
//-----------------------------------------------------------------------------------------------------
//------------------------------startServer------------------------------------------------------------
private void startServer()
{
SwingWorker <Void, String> runningServer = new SwingWorker<Void, String>(){
protected Void doInBackground()
{
System.out.println("in startserver...");
try
{
listeningSocket = new ServerSocket(port);
try
{
ip = InetAddress.getLocalHost();
System.out.println("Please enter this in your phone " + ip.getHostAddress());
}
catch (UnknownHostException e)
{
e.printStackTrace();
}
while (true)
{
System.out.println("Waiting for connection");
connection = listeningSocket.accept();
InputStream in = connection.getInputStream();
Scanner r = new Scanner(in);
OutputStream o = connection.getOutputStream();
PrintWriter p = new PrintWriter(o);
String message = r.nextLine();
System.out.println("" + message);
t1.setText(message);
// get the message type
// 0 sms 1 contact 2 incoming call
System.out.println(message);
if(message.startsWith("0"))
{
System.out.println(message);
String type = message.substring(1,2);
int theType = Integer.parseInt( type );
String number = message.substring(7, 21).trim();
String theText = message.substring(21);
String theName = MyHelpers.getName(number, myContacts);
System.out.println("Number = "+number);
System.out.println("Sender = "+theName);
System.out.println("Text = "+theText);
Contact cRef = MyHelpers.getContactReference(number, myContacts);
if (cRef != null)
{
cRef.addsms(theType, theName, theText);
}
}
if(message.startsWith("1"))
{
System.out.println(message);
String name = message.substring(1, 31).trim();
String pnumber = message.substring(31, 51).trim();
String email = message.substring(51, 91).trim();
myContacts.add(new Contact(name, pnumber, email));
System.out.println( name + pnumber + email);
}
if(message.startsWith("2"))
{
String unkown = message.substring(0, 1).trim();
String number = message.substring(1, 14).trim();
String theName = MyHelpers.getName(number, myContacts);
System.out.println(""+unkown+""+theName+" Is calling you");
}
if(message.startsWith("5"))
{
System.exit(0);
}
任何帮助都会很棒，我对此感到困惑