java.net.SocketException套接字已关闭

我发送客户端的对象到服务器端修改该对象并将其重新发送到客户端。 从客户端发送对象到服务器很好，它正常工作，但当我发回对象时，它会给出exceptionSocket关闭。 这是代码。 IntString和ParentObj是我正在发送对象的类。

Client1类：

import java.net.*; import java.io.*; public class Client1 { public static void main(String args[]) { int arr[] = new int[10]; int length = 6, i, counter_1; ParentObj obj1; for (i = 0; i < length; i++) { arr[i] = i + 10; } try { Socket s = new Socket("localhost", 6789); IntString obj = new IntString(arr, length); /* * OutputStream os = s.getOutputStream(); * ObjectOutputStream oos = new ObjectOutputStream(os); * * oos.writeObject(obj); * oos.close(); * os.close(); */ Send_recv snd = new Send_recv(s); snd.sendObj((ParentObj) obj); if (s.isClosed()) { System.out.println("Closed"); // s.connect(null); } obj1 = snd.recObj(); obj = (IntString) obj1; if (obj != null) { for (counter_1 = 0; counter_1 < obj.length_of_row; counter_1++) { System.out.println(obj.row[counter_1]); obj.row[counter_1]++; } } // s.close(); } catch (Exception e) { System.out.println(e); } } } 

服务器类

 import java.net.*; import java.io.*; public class Server1 { public static void main(String args[]) { IntString obj; ParentObj obj1; int port = 6789, counter_1; try { ServerSocket ss = new ServerSocket(port); Socket s = ss.accept(); Send_recv rev = new Send_recv(s); /* * InputStream is = s.getInputStream(); * ObjectInputStream ois = new ObjectInputStream(is); * IntString obj = (IntString)ois.readObject(); */ obj1 = rev.recObj(); obj = (IntString) obj1; System.out.println(s.getInetAddress()); System.out.println(s.getLocalAddress()); if (obj != null) { for (counter_1 = 0; counter_1 < obj.length_of_row; counter_1++) { System.out.println(obj.row[counter_1]); obj.row[counter_1]++; } } if (ss.isClosed()) { System.out.println("Closed ss"); } if (s.isClosed()) { System.out.println("Closed in Server"); } Send_recv snd = new Send_recv(s); snd.sendObj((ParentObj) obj); } catch (Exception e) { System.out.println(e + "In Server"); } } } 

Send_recv类用于发送和接收对象。

 import java.io.*; import java.net.*; public class Send_recv { Socket s; IntString obj1; public Send_recv(Socket s) { this.s = s; } public void sendObj(ParentObj obj) { try { OutputStream os = s.getOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(os); oos.writeObject(obj); oos.close(); os.close(); } catch (Exception e) { System.out.println(e); } } public ParentObj recObj() { try { InputStream is = s.getInputStream(); ObjectInputStream ois = new ObjectInputStream(is); obj1 = (IntString) ois.readObject(); ois.close(); is.close(); } catch (Exception e) { System.out.println(e); } return (obj1); } } 

Answer 1

 java.net.SocketException socket is closed 

此exception意味着您关闭了套接字，然后继续尝试使用它。

 os.close(); 

你在这里关闭它。 关闭Socket的输入或输出流将关闭另一个流和Socket.