我正在开发android应用程序，其中服务器将命令发送到客户端，客户端按命令工作并发送结果。
我每15秒在客户端使用处理程序在服务器端写入数据。
我的问题是我从客户端获取输出并正确烘烤但是值第一次分配给Textview，当第二次值正确地烘烤它而没有分配给Textview
我的代码在这里
服务器端
public class ServerSocketNew extends ActionBarActivity {
static final int SocketServerPORT = 8080;
LinearLayout chatpanel, sendpanel;
TextView infoIp, infoPort, chatMsg,contact,contact1;
Button b1,b2,back,Files;
EditText e1,e2;
private File root;
private ArrayList<File> fileList = new ArrayList<File>();
String msgLog = "";
String prev="";
String Message="Hies";
String Flags="Trues";
List<ChatClient> userList;
int count=0;
ServerSocket serverSocket;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_server_socket_new);
infoIp = (TextView) findViewById(R.id.infoip);
infoPort = (TextView) findViewById(R.id.infoport);
chatMsg = (TextView) findViewById(R.id.chatmsg);
b1 = (Button) findViewById(R.id.send);
b2 = (Button) findViewById(R.id.Contacts);
e1 = (EditText) findViewById(R.id.say);
e2 = (EditText) findViewById(R.id.Something);
contact=(TextView) findViewById(R.id.contact);
contact1=(TextView) findViewById(R.id.contact1);
infoIp.setText(getIpAddress());
chatpanel = (LinearLayout)findViewById(R.id.chatpanel);
sendpanel = (LinearLayout)findViewById(R.id.sendpanel);
back=(Button) findViewById(R.id.back);
Files=(Button) findViewById(R.id.Files);
OnClickListener listener=new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Message=e1.getText().toString();
Flags="Trues";
count=0;
}
};
OnClickListener Listnerfiles=new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Message="";
Message="Files";
Flags="Trues";
sendpanel.setVisibility(View.GONE);
chatpanel.setVisibility(View.VISIBLE);
count=0;
}
};
OnClickListener listener1=new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Flags="Trues";
Message="CONTACTS";
sendpanel.setVisibility(View.GONE);
chatpanel.setVisibility(View.VISIBLE);
count=0;
}
};
b1.setOnClickListener(listener);
b2.setOnClickListener(listener1);
Files.setOnClickListener(Listnerfiles);
back.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
e1.setText("");
Message="CONTACTS";
Flags="Trues";
count=0;
}
});
userList = new ArrayList<ChatClient>();
ChatServerThread chatServerThread = new ChatServerThread();
chatServerThread.start();
}
@Override
protected void onDestroy() {
super.onDestroy();
if (serverSocket != null) {
try {
serverSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private class ChatServerThread extends Thread {
@Override
public void run() {
Socket socket = null;
try
{
serverSocket = new ServerSocket(SocketServerPORT);
ServerSocketNew.this.runOnUiThread(new Runnable() {
@Override
public void run() {
infoPort.setText("I'm waiting here: "
+ serverSocket.getLocalPort());
}
});
while (true) {
socket = serverSocket.accept();
ChatClient client = new ChatClient();
userList.add(client);
ConnectThread connectThread = new ConnectThread(client, socket);
connectThread.start();
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
private class ConnectThread extends Thread {
Socket socket;
ChatClient connectClient;
String msgToSend = "";
ConnectThread(ChatClient client, Socket socket){
connectClient = client;
this.socket= socket;
client.socket = socket;
client.chatThread = this;
}
@Override
public void run() {
DataInputStream dataInputStream = null;
DataOutputStream dataOutputStream = null;
try {
dataInputStream = new DataInputStream(socket.getInputStream());
dataOutputStream = new DataOutputStream(socket.getOutputStream());
String n = dataInputStream.readUTF();
connectClient.name = n;
msgLog += connectClient.name + " connected@" +
connectClient.socket.getInetAddress() +
":" + connectClient.socket.getPort() + "\n";
ServerSocketNew.this.runOnUiThread(new Runnable() {
@Override
public void run() {
infoIp.setText(msgLog);
}
});
dataOutputStream.writeUTF("Welcome " + n + "\n");
dataOutputStream.flush();
broadcastMsg(n + " join our chat.\n");
while (true) {
if (dataInputStream.available() > 0) {
String newMsg = dataInputStream.readUTF();
msgLog="";
msgLog = newMsg;
ServerSocketNew.this.runOnUiThread(new Runnable() {
@Override
public void run() {
// infoIp.setText(msgLog);
// Toast.makeText(getApplicationContext(), "prev="+prev, Toast.LENGTH_LONG).show();
// Toast.makeText(getApplicationContext(), "messagelog="+msgLog, Toast.LENGTH_LONG).show();
Log.e("Number",msgLog);
e2.setText(msgLog+"#"+msgLog);
if(count<5)
{
Toast.makeText(getApplicationContext(), "messagelog="+msgLog, Toast.LENGTH_LONG).show();
contact.setText(msgLog);
}
count=count+1;
}
});
broadcastMsg(n + ": " + newMsg);
}
if(!msgToSend.equals("")){
dataOutputStream.writeUTF(msgToSend);
dataOutputStream.flush();
msgToSend = "";
}
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (dataInputStream != null) {
try {
dataInputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (dataOutputStream != null) {
try {
dataOutputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
userList.remove(connectClient);
ServerSocketNew.this.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(ServerSocketNew.this,
connectClient.name + " removed.", Toast.LENGTH_LONG).show();
msgLog += "-- " + connectClient.name + " leaved\n";
ServerSocketNew.this.runOnUiThread(new Runnable() {
@Override
public void run() {
infoIp.setText(msgLog);
}
});
broadcastMsg("-- " + connectClient.name + " leaved\n");
}
});
}
}
private void sendMsg(String msg){
msgToSend = msg;
}
}
private void broadcastMsg(String msg){
for(int i=0; i<userList.size(); i++){
userList.get(i).chatThread.sendMsg(Message);
msgLog = Message+"\n";
}
ServerSocketNew.this.runOnUiThread(new Runnable() {
@Override
public void run() {
infoIp.setText(msgLog);
}
});
}
我的客户端代码
public class CLIENTNEW123 extends ActionBarActivity {
static final int SocketServerPORT = 8080;
DataOutputStream dataOutputStream = null;
DataInputStream dataInputStream = null;
LinearLayout loginPanel chatPanel;TextView chatMsg;static String fourth;
Button buttonSend;
String msgLog = "";
String msgLog1="";
String ret = null;
String nameno="";
String ret1 = null;
Context context=this;
String name="";
String flags="false";
ChatClientThread chatClientThread = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_clientnew123);
final Handler handler = new Handler();
loginPanel = (LinearLayout)findViewById(R.id.loginpanel);
chatPanel = (LinearLayout)findViewById(R.id.chatpanel);
chatMsg = (TextView) findViewById(R.id.chatmsg);
msgLog = "";
chatMsg.setText(msgLog);
loginPanel.setVisibility(View.GONE);
chatPanel.setVisibility(View.VISIBLE);
chatClientThread = new ChatClientThread(
"aaa","192.168.43.1", SocketServerPORT);
chatClientThread.start();
Runnable runable = new Runnable() {
@Override
public void run() {
try{
chatClientThread.sendMsg("Namasted"+ "\n");
handler.postDelayed(this, 15*1000);
Log.e("In Handler", "In Handler");
}
catch (Exception e) {
// TODO: handle exception
}
finally{
//also call the same runnable
handler.postDelayed(this, 15*1000);
}
}
};
handler.postDelayed(runable, 15*1000);
}
private class ChatClientThread extends Thread {
String name;
String dstAddress;
int dstPort;
String msgToSend = "";
boolean goOut = false;
private File root;
private ArrayList<File> fileList = new ArrayList<File>();
private LinearLayout view;
String Filenames="";
File[] fileArray;
ChatClientThread(String name, String fourth, int port) {
this.name = name;
dstAddress = fourth;
dstPort =8080;
}
@Override
public void run() {
Socket socket = null;
try {
socket = new Socket(dstAddress, dstPort);
dataOutputStream = new DataOutputStream(
socket.getOutputStream());
dataInputStream = new DataInputStream(socket.getInputStream());
dataOutputStream.writeUTF(name);
dataOutputStream.flush();
while (!goOut) {
if (dataInputStream.available() > 0) {
msgLog1 = dataInputStream.readUTF();
// msgLog += msgLog1;
// Toast.makeText(getApplicationContext(),msgLog,Toast.LENGTH_LONG ).show();
CLIENTNEW123.this.runOnUiThread(new Runnable() {
@Override
public void run() {
chatMsg.setText(msgLog1);
// name=msgLog;
//abcd aa=new abcd();
//aa.add(name);
}
});
//sendMsg("name " + "\n");
}
if(!msgToSend.equals("")){
if(msgLog1.equals("FilesNew"))
{
File file = new File(Environment.getExternalStorageDirectory(),"test.txt");
byte[] bytes = new byte[1024];
InputStream is = socket.getInputStream();
FileOutputStream fos = new FileOutputStream(file);
BufferedOutputStream bos = new BufferedOutputStream(fos);
int bytesRead = is.read(bytes, 0, bytes.length);
bos.write(bytes, 0, bytesRead);
bos.close();
socket.close();
}
if(msgLog1.equals("Files"))
{
flags="Files";
root = new File(Environment.getExternalStorageDirectory()
.getAbsolutePath());
fileList=getfile(root);
for (int i = 0; i < fileList.size(); i++) {
Filenames+=fileList.get(i).getName()+"#"+"\n";
System.out.println(fileList.get(i).getName());
if (fileList.get(i).isDirectory()) {
}
}
dataOutputStream.writeUTF(Filenames+"\n");
dataOutputStream.flush();
}
else if(msgLog1.equals("CONTACTS"))
{
flags="true";
dataOutputStream.writeUTF("\n");
dataOutputStream.flush();
}
else if(flags=="true")
{
String selection = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME+" like'"+msgLog1+"%'";
String[] projection = new String[] {ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
ContactsContract.CommonDataKinds.Phone.NUMBER};
Cursor c = context.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
projection, selection, null, null);
int indexName = c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME);
int indexNumber = c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
// Socket socket = serverSocket.accept();
while(c.moveToNext()) {
ret = c.getString(indexName);
ret1 = c.getString(indexNumber);
nameno=nameno+" "+ret+" "+ret1;
}
if (c.moveToFirst()) {
ret = c.getString(0);
ret1 = c.getString(0);
}
c.close();
dataOutputStream.writeUTF(nameno+"\n");
dataOutputStream.flush();
}
else
{
dataOutputStream.writeUTF("Messgae lo"+msgLog1);
dataOutputStream.flush();
}
msgToSend = "";
}
}
} catch (UnknownHostException e) {
e.printStackTrace();
final String eString = e.toString();
CLIENTNEW123.this.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText( CLIENTNEW123.this, eString, Toast.LENGTH_LONG).show();
}
});
}
catch (IOException e) {
e.printStackTrace();
final String eString = e.toString();
CLIENTNEW123.this.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText( CLIENTNEW123.this, eString, Toast.LENGTH_LONG).show();
}
});
} finally {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (dataOutputStream != null) {
try {
dataOutputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (dataInputStream != null) {
try {
dataInputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
CLIENTNEW123.this.runOnUiThread(new Runnable() {
@Override
public void run() {
loginPanel.setVisibility(View.VISIBLE);
chatPanel.setVisibility(View.GONE);
}
});
}
}
public ArrayList<File> getfile(File dir) {
File listFile[] = dir.listFiles();
if (listFile != null && listFile.length > 0) {
for (int i = 0; i < listFile.length; i++) {
if (listFile[i].isDirectory()) {
fileList.add(listFile[i]);
getfile(listFile[i]);
} else {
if (listFile[i].getName().endsWith(".png")
|| listFile[i].getName().endsWith(".jpg")
|| listFile[i].getName().endsWith(".jpeg")
|| listFile[i].getName().endsWith(".gif")
|| listFile[i].getName().endsWith(".mp3")
|| listFile[i].getName().endsWith(".pdf"))
{
fileList.add(listFile[i]);
}
}
}
}
return fileList;
}
private void sendMsg(String msg){
msgToSend = msg;
}
private void disconnect(){
goOut = true;
}
}
}
我在connectthread类的run方法中烘烤了我的字符串 像
Toast.makeText(getApplicationContext(), "messagelog="+msgLog, Toast.LENGTH_LONG).show();
之后我将值分配给textview
我在吐司中得到了正确的值。
我在服务器端附近遇到问题
if(count<5)
{
Toast.makeText(getApplicationContext(), "messagelog="+msgLog, Toast.LENGTH_LONG).show();
contact.setText(msgLog);
}
此代码
在'contact'textview中我设置值
提前致谢
答案 0 :(得分：0)
由于您在UIThread中使用msgLog， 因此，当这个线程重复运行方法时它的值被替换。 尝试在msgLog上添加新值而不仅仅是替换它
msgLog="";
while (true) {
if (dataInputStream.available() > 0) {
String newMsg = dataInputStream.readUTF();
msgLog += newMsg;
ServerSocketNew.this.runOnUiThread(new Runnable() {
@Override
public void run() {
// infoIp.setText(msgLog);
// Toast.makeText(getApplicationContext(), "prev="+prev, Toast.LENGTH_LONG).show();
// Toast.makeText(getApplicationContext(), "messagelog="+msgLog, Toast.LENGTH_LONG).show();
Log.e("Number",msgLog);
e2.setText(msgLog+"#"+msgLog);
if(count<5)
{
Toast.makeText(getApplicationContext(), "messagelog="+msgLog, Toast.LENGTH_LONG).show();
// Flags="False";
// contact.setText("");
// contact1.setText("");
//contact1.setText(msgLog2);
contact.setText(msgLog);
}
count=count+1;
}
});
broadcastMsg(n + ": " + newMsg);
}