[英]Socket write error when i connect multiple client to java server simultaneously
I am creating a desktop application in which multiple clients have to connect to the server using socket connection between them. 我正在创建一个桌面应用程序,其中多个客户端必须使用它们之间的套接字连接来连接到服务器。 I successfully connected them but the problem occurs when i connect multiple client simultaneously to the server, sever got an error " socket write error " my code is below plz suggest me an answer..
我成功连接了它们,但是当我同时将多个客户端连接到服务器时,发生了问题,服务器出现错误“ 套接字写入错误 ”,我的代码低于plz,建议我给出答案。
public class SocketConnection implements Runnable {
// password of oracle database
ServerSocket serverSocket = null;
Socket socket = null;
DataInputStream dataInputStream = null;
DataOutputStream dataOutputStream = null;
Socket clientSocket = null;
DBConnection dbConnection;
public SocketConnection() {
// TODO Auto-generated constructor stub
dbConnection = new DBConnection();
if (con != null) {
serverSocket = dbConnection.createSocket();
if (serverSocket != null) {
System.out.println("Server Started. Looking for the connections.");
System.out.println("Listening Port:8888.......");
}
Thread t = new Thread(this);
t.start();
}
}
@Override
public void run() {
// TODO Auto-generated method stub
while (true) {
try {
clientSocket = serverSocket.accept();
System.out.println("Connection Accepted");
Connect m_connect = new Connect(clientSocket);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public class Connect implements Runnable {
Socket clientSocket = null;
Thread t = null;
private ResultSet res1;
private ResultSet res2;
Statement stmt;
private File mkFolder;
public Connect(Socket clientSocke) {
// TODO Auto-generated constructor stub
this.clientSocket = clientSocke;
try {
stmt = con.createStatement();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
t = new Thread(this);
t.start();
}
@Override
public void run() {
try {
dataInputStream = new DataInputStream(
clientSocket.getInputStream());
dataOutputStream = new DataOutputStream(
clientSocket.getOutputStream());
System.out.println("Connection established::"
+ clientSocket.getInetAddress());
String pass = dataInputStream.readUTF();
System.out.println(pass);
if (pass.equals("1")) {
//here is read n write operation
} else if (pass.equals("3")) {
//here is read n write operation
} else if (pass.equals("2")) {
//here is read n write operation
} else if (pass.equals("4")) {
//here is read n write operation
} else if (pass.equals("5")) {
//here is read n write operation
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (dataOutputStream != null) {
try {
dataOutputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (dataInputStream != null) {
try {
dataInputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (stmt != null) {
try {
stmt.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
Why you are doing this in that low-level way? 为什么您以这种低级方式进行此操作? Choose an well documented API and communicate through it!
选择一个文档齐全的API并通过它进行通信!
Did you already read articles like this: Multithread client server chat on sockets. 您是否已经阅读过这样的文章: 多线程客户端服务器在套接字上聊天。 Load test.
负载测试。 recv failed
接收失败
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