Java Android中发送和接收套接字的实现
我目前正在开发android和服务器之间的套接字通信，这是一个在终端上运行的简单java程序。一切进展顺利，但当我关闭应用程序时，logCat中总会出现警告：Java Android中发送和接收套接字的实现,java,android,sockets,Java,Android,Sockets,我目前正在开发android和服务器之间的套接字通信，这是一个在终端上运行的简单java程序。一切进展顺利，但当我关闭应用程序时，logCat中总会出现警告： IInputConnectionWrapper showStatusIcon on inactive InputConnection 我正在互联网上搜索，以找出我在StackOverflow中找到的问题。不同之处在于我可以在我的程序中很好地发送和接收信息。这个类似问题的答案是连接没有关闭。这是否意味着我没有调用socket.clo
IInputConnectionWrapper showStatusIcon on inactive InputConnection
socket.close（）手术后？这导致了一个更复杂的执行问题
首先，我需要一个静态套接字来监听并发送到服务器。因为我可能不会在每次传输内容时都关闭套接字，所以我只是在侦听器完成工作后关闭它
详细代码如下所示
我将构造函数中的连接初始化为：
client = new Socket(mServerName, mport);
out = new DataOutputStream(client.getOutputStream());
inFromServer = new InputStreamReader(client.getInputStream());
reader = new BufferedReader(inFromServer);
让他们在整个过程中都在场
我将从android到服务器的传输写入一个函数，如下所示：
public void sendRequest(int type, int what1, int what2, Object data)
{
try{
if(client.isConnected())
{
out.writeUTF(encoded(type,what1,what2,data) + "\n");
}
}catch(IOException e){
Log.e(TAG, "IOException at SendRequest");
e.printStackTrace();
}
}
新线程中的侦听器：
try {
String line = null;
while ((line = reader.readLine()) != null)
{
ReceiveHandler(line);
}
} catch (IOException e) {
Log.e(TAG, "IOException at StartListen");
e.printStackTrace();
}finally{
try {
// The Only Place that I close the Socket
inFromServer.close();
out.close();
reader.close();
client.close();
} catch (IOException e) {
Log.e(TAG, "Close Socket with IOException " + e.toString());
e.printStackTrace();
}
}
我的问题是:
我的实现是否有问题，或者是否有更好的方法
非常感谢你的帮助 我不确定这对你是否有用。。但我给你的是我用于客户机-服务器通信的代码
客户端代码：
public class ClientWala {
public static void main(String[] args) throws Exception{
Boolean b = true;
Socket s = new Socket("127.0.0.1", 4444);
System.out.println("connected: "+s.isConnected());
OutputStream output = s.getOutputStream();
PrintWriter pw = new PrintWriter(output,true);
// to write data to server
while(b){
if (!b){
System.exit(0);
}
else {
pw.write(new Scanner(System.in).nextLine());
}
}
// to read data from server
InputStream input = s.getInputStream();
InputStreamReader isr = new InputStreamReader(input);
BufferedReader br = new BufferedReader(isr);
String data = null;
while ((data = br.readLine())!=null){
// Print it using sysout, or do whatever you want with the incoming data from server
}
}
}
import java.io.*
import java.net.*;
public class ServerTest {
ServerSocket s;
public void go() {
try {
s = new ServerSocket(44457);
while (true) {
Socket incoming = s.accept();
Thread t = new Thread(new MyCon(incoming));
t.start();
}
} catch (IOException e) {
e.printStackTrace();
}
}
class MyCon implements Runnable {
Socket incoming;
public MyCon(Socket incoming) {
this.incoming = incoming;
}
@Override
public void run() {
try {
PrintWriter pw = new PrintWriter(incoming.getOutputStream(),
true);
InputStreamReader isr = new InputStreamReader(
incoming.getInputStream());
BufferedReader br = new BufferedReader(isr);
String inp = null;
boolean isDone = true;
System.out.println("TYPE : BYE");
System.out.println();
while (isDone && ((inp = br.readLine()) != null)) {
System.out.println(inp);
if (inp.trim().equals("BYE")) {
System.out
.println("THANKS FOR CONNECTING...Bye for now");
isDone = false;
s.close();
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
try {
s.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
e.printStackTrace();
}
}
}
public static void main(String[] args) {
new ServerTest().go();
}
}
服务器端代码：
public class ClientWala {
public static void main(String[] args) throws Exception{
Boolean b = true;
Socket s = new Socket("127.0.0.1", 4444);
System.out.println("connected: "+s.isConnected());
OutputStream output = s.getOutputStream();
PrintWriter pw = new PrintWriter(output,true);
// to write data to server
while(b){
if (!b){
System.exit(0);
}
else {
pw.write(new Scanner(System.in).nextLine());
}
}
// to read data from server
InputStream input = s.getInputStream();
InputStreamReader isr = new InputStreamReader(input);
BufferedReader br = new BufferedReader(isr);
String data = null;
while ((data = br.readLine())!=null){
// Print it using sysout, or do whatever you want with the incoming data from server
}
}
}
import java.io.*
import java.net.*;
public class ServerTest {
ServerSocket s;
public void go() {
try {
s = new ServerSocket(44457);
while (true) {
Socket incoming = s.accept();
Thread t = new Thread(new MyCon(incoming));
t.start();
}
} catch (IOException e) {
e.printStackTrace();
}
}
class MyCon implements Runnable {
Socket incoming;
public MyCon(Socket incoming) {
this.incoming = incoming;
}
@Override
public void run() {
try {
PrintWriter pw = new PrintWriter(incoming.getOutputStream(),
true);
InputStreamReader isr = new InputStreamReader(
incoming.getInputStream());
BufferedReader br = new BufferedReader(isr);
String inp = null;
boolean isDone = true;
System.out.println("TYPE : BYE");
System.out.println();
while (isDone && ((inp = br.readLine()) != null)) {
System.out.println(inp);
if (inp.trim().equals("BYE")) {
System.out
.println("THANKS FOR CONNECTING...Bye for now");
isDone = false;
s.close();
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
try {
s.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
e.printStackTrace();
}
}
}
public static void main(String[] args) {
new ServerTest().go();
}
}
有一个工具可以帮助您诊断Android设备和模拟器上的网络相关问题。它可能会帮助您进一步追踪问题。ARO工具是开源的，可在此处使用非常感谢您的帮助！但在您的程序中，您通过监听控制台发送信息。我想要的是我可以调用函数sendmessage从其他类发送消息。你对此有什么想法吗？还是谢谢你！