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[英]Java graphical glitch in console application in cmd but not in eclipse
[英]remote java console application control using cmd
我有Java控制台应用程序,我想从另一台计算机进行控制。 我使用Socket类通过网络和管道发送数据,以将远程控制程序与Sender和Reader程序连接起来,如下所示:
读者:
import java.io.*;
import java.net.*;
public class Reader {
//reads information from the remote controlled program
public static void main(String[] args) throws Exception {
Socket s = new Socket(args[0], Integer.parseInt(args[1]));
PrintWriter bw = new PrintWriter(s.getOutputStream(), true);
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
String vstup;
do {
vstup = in.readLine();
if(vstup==null) break;
bw.println(vstup);
} while(true);
s.close();
}
}
发件人:
import java.io.*;
import java.net.*;
public class Sender {
//sends instruction to the remote controlled program
public static void main(String[] args) throws Exception {
Socket s = new Socket(args[0], Integer.parseInt(args[1]));
BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream()));
String vstup;
do {
vstup = in.readLine();
if(vstup==null) break;
System.out.println(vstup);
} while(true);
s.close();
}
}
遥控器:
import java.net.*;
import java.io.*;
public class RemoteController {
public static void main(String[] main) throws IOException {
ServerSocket ss = new ServerSocket(Integer.parseInt(main[0]));
System.out.println("Done, please connect the program.");
Socket reader = ss.accept(); //reads what the program says
System.out.println("reader connected");
Socket writer = ss.accept(); //writes into the program
System.out.println("writer connected");
BufferedReader read = new BufferedReader(new InputStreamReader(reader.getInputStream()));
PrintWriter write = new PrintWriter(writer.getOutputStream(), true);
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
for(int i = 0; i<5; i++) {
write.println(br.readLine());
System.out.println(read.readLine());
}
write.close();
read.close();
writer.close();
reader.close();
ss.close();
}
}
现在我运行遥控器,然后我写
java Sender localhost 1234 | java SomeProgram | java Reader localhost 1234
进入命令提示符进行测试。 它有时起作用,有时不起作用,有没有建议如何使其每次起作用?
所有的问题是发件人和阅读器程序以随机顺序连接到主程序,因此添加Thread.sleep(200)解决了我的问题,很烦人。 PS:如果您使用Java(和cmd)编程,请尝试一下,我觉得我真的很有趣。
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