[英]Android:socket communication
我正在尝试使用android客户端和java服务器创建简单的应用程序,当我尝试读取服务器回复错误:套接字关闭时,android客户端能够将消息发送到server(java)。 line(if(((receiveMessage = receiveRead.readLine())!= null))
public class ClientConnectorTask extends AsyncTask<String, Void, Integer> {
private Socket client;
private PrintWriter printwriter;
protected Integer doInBackground(String...strings) {
// validate input parameters
if (strings.length <= 0) {
return 0;
}
// connect to the server and send the message
try {
client = new Socket("192.168.1.4", 7777);
printwriter = new PrintWriter(client.getOutputStream(),true);
//while(true){
InputStream istream = client.getInputStream();
BufferedReader receiveRead = new BufferedReader(new InputStreamReader(istream));
String receiveMessage;
while (true){
// printwriter.write(strings[0]);
printwriter.print(strings[0]);
printwriter.flush();
printwriter.close();
if((receiveMessage = receiveRead.readLine()) != null) //receive from server
{
System.out.println(receiveMessage); // displaying at DOS prompt
}
}
//}
//client.close();
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return 0;
}
protected void onPostExecute(Long result) {
return;
}
}
在循环内关闭PrintWriter
毫无意义,在readLine()
调用之前将其关闭也没有意义。 关闭Socket
的输入或输出流将关闭另一个流和套接字。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.