【发布时间】：2014-06-13 07:41:06
【问题描述】：
我昨天问了这个问题，没有人能弄清楚我遇到的问题。所以我希望提供一个更新的代码，其中包含昨天添加的建议。基本上，我一直在尝试在服务器和客户端之间建立连接，但是每当我执行服务器然后客户端时，我都会得到这个异常：Address already in use。显而易见的答案是给它一个新的端口，但即便如此我仍然会收到这个错误。我假设它与我的代码某处出错有关。请问有人能看出来吗？我已经附上了服务器类和客户端类。
这是我得到的错误：
Exception in thread "main" java.net.BindException: Address already in use
at java.net.PlainSocketImpl.socketBind(Native Method)
at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376)
at java.net.ServerSocket.bind(ServerSocket.java:376)
at java.net.ServerSocket.<init>(ServerSocket.java:237)
at java.net.ServerSocket.<init>(ServerSocket.java:128)
at MessageServer.main(MessageServer.java:16)
服务器代码：
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.ServerSocket;
import java.net.Socket;
public class MessageServer {
public static void main(String[] args) throws IOException {
try {
int port = 53705;
ServerSocket server = new ServerSocket(port);
while (true) {
System.out.println("Waiting for client...");
//server.setReuseAddress(true);
Socket client = server.accept();
System.out.println("Client from " + server.getInetAddress() + " connected.");
BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
String inputLine = in.readLine();
System.out.println("Client said: '"+inputLine+"'");
Writer count = new BufferedWriter(new OutputStreamWriter(client.getOutputStream()));
byte c [] = count.toString().getBytes();
count.flush();
count.close();
in.close();
}
} catch (IOException e) {
System.err.println(e);
}
}
}
客户端代码：
import java.net.*;
import java.io.*;
public class MessageSendClient {
public static void man(String args[]) throws IOException {
String servername = "localhost";
int port = 53705;
Socket server;
//server.setReuseAddress(true);
try {
server = new Socket (servername,port);
System.out.println("Connected to " + server.getInetAddress());
DataInputStream in = new DataInputStream(new BufferedInputStream(server.getInputStream()));
server.close();
byte c[] = new byte[100];
int num = in.read(c);
String count = new String(c);
System.out.println("Server said: " + count);
} catch (Exception e) { }
}
}
【问题讨论】：
-
您需要显示实际的堆栈跟踪并识别程序中引发异常的语句。
-
@JimGarrison 嗨，我已经使用堆栈跟踪编辑了我的帖子。你能看看我的代码哪里出错了吗？
-
这个问题你解决了吗？
标签： java linux eclipse sockets port