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我的Android应用程序应该连接到java tcp服务器时出现问题。我收到Connection拒绝错误。Android应用程序和Java服务器问题。拒绝连接
server.java
public class Server
{
public static void main(String argv[]) throws Exception
{
ServerSocket welcomeSocket = new ServerSocket(6789);
System.out.println("welcome into server");
while(true)
{
Socket connectionSocket = welcomeSocket.accept();
if (connectionSocket != null)
{
System.out.println(connectionSocket);
Client client = new Client(connectionSocket);
client.start();
}
}
}
}
class Client extends Thread
private Socket connectionSocket;
private String clientSentence;
private String ans;
private String temak="test";
private String capitalizedSentence;
private BufferedReader inFromClient;
private DataOutputStream outToClient;
public Client(Socket c) throws IOException
{
connectionSocket = c;
}
public void run()
{
try
{
inFromClient = new BufferedReader(new nputStreamReader(connectionSocket.getInputStream()));
outToClient = new DataOutputStream(connectionSocket.getOutputStream());
clientSentence = inFromClient.readLine();
System.out.println(clientSentence);
capitalizedSentence = clientSentence.toUpperCase() + '\n';
BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in));
ans = inFromUser.readLine();
outToClient.writeBytes(capitalizedSentence);
if("hej".equals(clientSentence)){
outToClient.writeBytes(ans + " tester hej"+ "\n");
}
else{
outToClient.writeBytes(ans+"\n");
}
}
catch(IOException e)
{
System.out.println("Errore: " + e);
}
}
}
从客户端片段在Android上：
String sentence = null;
String modifiedSentence;
String tempus;
try {
Socket clientSocket = new Socket("localhost", 6789);
DataOutputStream outToServer = new DataOutputStream(clientSocket.getOutputStream());
BufferedReader inFromServer = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
Log.d("pre","TCP Connected.");
outToServer.writeBytes(sentence + 'n');
modifiedSentence = inFromServer.readLine();
Log.d("sentence ", modifiedSentence);
Log.d("post","TCP Success !!!");
clientSocket.close();
} catch (Exception e) {
Log.d("error","TCP Error: " + e.toString());
}
程序试图在本地主机连接端口6789
您可以编辑您的代码示例以正确执行缩进操作。现在很难阅读。 – Gray
localhost是android设备不是你的PC/Mac/Whatever – Selvin
那么如何获得设备外？把我的IP？ – iie