[英]Problem in TCP Program (Java)
任何人都可以帮我调试这个程序吗?
以下是服务器代码:
package networking;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
class TcpServer {
public static void main(String[] args) throws IOException {
ServerSocket serverSocket = new ServerSocket(5555);
while (true) {
Socket client = serverSocket.accept();
Scanner reader = new Scanner(client.getInputStream());
PrintWriter writer = new PrintWriter(client.getOutputStream());
String inputString = reader.nextLine();
System.out.println("Received from client : " + inputString);
writer.write(inputString.toUpperCase());
client.close();
}
}
}
这是客户端代码:
package networking;
import java.io.PrintWriter;
import java.io.IOException;
import java.net.Socket;
import java.util.Scanner;
class TcpClient {
public static void main(String[] args) throws IOException {
Socket client = new Socket("localhost", 5555);
PrintWriter writer = new PrintWriter(client.getOutputStream());
Scanner reader=new Scanner(client.getInputStream());
writer.println("oPen SOurCe RUleS !");
System.out.println("Received from server : "+reader.nextLine());
client.close();
}
}
问题是当我运行这个程序时,客户端和服务器都进入无限期等待状态。有人能告诉我这段代码有什么问题吗?
提前致谢!
你试过Flushing the PrintWriter
吗?
您关闭了流,但您从未通知作者您将要这样做。
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