logo
down
shadow

one server for multiples clients Java


one server for multiples clients Java

By : Roxx
Date : November 22 2020, 01:01 AM
wish help you to fix your issue 1) I should create a thread every time I read a client in the server A, to work with data?
Yes. These worker threads are known as worker thread. If you don't then you would block next request while reading and processing the request. So wait time for other request will increase.
code :


Share : facebook icon twitter icon
1 server 2 clients java

1 server 2 clients java


By : Dewscott
Date : March 29 2020, 07:55 AM
it helps some times So now you can see in your code that you have a point where the server socket is waiting for a connection. That is the accept() method. At that point, you need to create a new Thread for handling the connection and let the main thread continue waiting for another connection. You may want to keep track of the number of connections made in a variable, say numConnections.
code :
 while(numConnections < 2){
       connection = providerSocket.accept();
       Thread t = new Thread(new ConnectionHandler(connection));
       t.start();
       numConnections++;
 }
 class ConnectionHandler implements Runnable{
        Socket connection;
        public ConnectionHandler(Socket connection){
             this.connection = connection;
        }

        public void run(){
           //here you do all the code associated with handling the connection
           //such as your Object Streams and so on.
        }
 }
QTcpSocket and multiples clients (signal issue)

QTcpSocket and multiples clients (signal issue)


By : user2455303
Date : March 29 2020, 07:55 AM
will be helpful for those in need I'm developing a server that responds multiple connections from a client. But I have a problem where I have not found any solution. I created a class (TcpSocket) for QTcpSocket, which separates the signals and slots for each connection. , Fixed!
Modifications:
code :
class TcpSocket: public QTcpSocket // old
class TcpSocket: public QObject // new
// old
void dataReady (TcpSocket *sckt);
void newConnection(TcpSocket *sckt);
void lostConnection(TcpSocket *sckt);

// new
void dataReady(QTcpSocket *sckt);
void newConnection(QTcpSocket *sckt);
void lostConnection(QTcpSocket *sckt);
// old
TcpSocket::TcpSocket(QTcpSocket * socket)
    : Socket (socket)
{
    connect(Socket, SIGNAL(readyRead()), this, SLOT (slotReadyRead()));
    connect(Socket, SIGNAL(connected()), this, SLOT(slotConnected()));
    connect(Socket, SIGNAL(disconnected()), this, SLOT(slotDisconnected()));
}

// new
TcpSocket::TcpSocket (QTcpSocket * socket)
    : Socket (socket)
{
    this->sock = socket;
    connect(socket, SIGNAL(readyRead()), this, SLOT (slotReadyRead()));
    connect(socket, SIGNAL(connected()), this, SLOT(slotConnected()));
    connect(socket, SIGNAL(disconnected()), this, SLOT(slotDisconnected()));
}
// old
void TcpSocket::slotReadyRead()
{
    emit dataReady(this);
}

void TcpSocket::slotConnected()
{
    emit newConnection(this);
}

void TcpSocket::slotDisconnected()
{
    emit lostConnection(this);
}

// new
void TcpSocket::slotReadyRead()
{
    emit dataReady(this->sock);
}

void TcpSocket::slotConnected()
{
    emit newConnection(this->sock);
}

void TcpSocket::slotDisconnected()
{
    emit lostConnection(this->sock);
}
// old
public:
    TcpSocket (QTcpSocket *);
    virtual ~TcpSocket();

// new
public:
    TcpSocket (QTcpSocket *);
    QTcpSocket *sock;
QTcpSocket *socket = (your QTcpSocket);
TcpSocket *tcpSocket = new TcpSocket(socket);
connect(tcpSocket, SIGNAL(dataReady(QTcpSocket*)), this, SLOT(your_slot(QTcpSocket*)));
Android Client - Java Server: how many clients can a server support at the same time?

Android Client - Java Server: how many clients can a server support at the same time?


By : Willian Costa Souza
Date : March 29 2020, 07:55 AM
hop of those help? ServerSocket Docs Says:The maximum queue length for incoming connection indications (a request to connect) is set to 50. If a connection indication arrives when the queue is full, the connection is refused.
Max. number of clients will vary by some amount every time depending on your processing time, more CPU + RAM is always helpful at the server-side but code should be optimal also at the server-side.
SSO - from java clients on windows to java server on linux

SSO - from java clients on windows to java server on linux


By : Janet Stewart
Date : March 29 2020, 07:55 AM
will help you There are lots of patterns available. You haven't mentioned how is the communication between your Java application and the server.
You can easily get ServletFilter model to work if the communication between your applications and server is over http.
Restrict postges access from java clients by using java program on a server

Restrict postges access from java clients by using java program on a server


By : user3740801
Date : March 29 2020, 07:55 AM
may help you . Why not use transactions in your operations? The database has features to maintain data integrity itself, rather than resorting to a brute operation such as a total-database lock.
This locking mechanism you describe sounds like it would be a pain for the users. Are the users initating the lock or is the software itself? If it's the users, you can expect some problems when Bob hits lock and then goes to lunch for 2 hours, forgetting to unlock the database first...
Related Posts Related Posts :
  • How to write generic Java API without method Overloading
  • Java Serialization / Deserialization of an ArrayList works only on first program execution
  • Conway's Game of Life's rules dont apply properly
  • call a java method when Click on a html button without using javascript
  • Why does SSLSocketFactory.createSocket returns a Socket instead of SSLSocket?
  • How to schedule a task in Tomcat
  • compare two pdf files (approach) using java
  • What is the use of allowCoreThreadTimeout( ) in ThreadPoolExecutor?
  • Describe the Strategy Design Pattern in Java?
  • MongoDB too many open connections
  • Issue with generate JAXB classes with value constructors
  • Moving from one frame to another in java swing
  • Get a thread by Id
  • how to open front camera and back camera at same time?
  • Messed up with Java Declaration
  • Extracting chart in EXcel as image using java
  • How to get latitude and longitude in Android phone?
  • Do GC pauses and kill -STOP produce the same behavior?
  • Android HTML.ImageGetter Images resized
  • The way to instantiate map<String, List<String>> in Java
  • Java Making objects move while buttons held
  • Androidx Navigation View - `setNavigationItemSelectedListener` Doesn't Work
  • after compiling code JFrame does not appear
  • Netbeans project, JFrames ran from the main JFrame close all JFrames in project
  • Square Retrofit Client: How to enable/disable followRedirects? How to intercept redirect URL?
  • Java Circular Reference - Can’t Compile
  • Mouse click on specific time JAVA
  • android 4 onCreateDialog return type incompatible when overriding
  • Java Implementation of Oracle's DBMS_UTILITY.GET_HASH_VALUE Function
  • javac cannot be run, and furthermore does not seem installed
  • Function to obtain a thread given its ID
  • Java File path to Executable has spaces
  • Minimum Oracle Java VM heap memory setting?
  • Elegant way to create one of a large number of classes
  • Java fx binding styles
  • Summing weights based on string in large file
  • Android ListView setOnItemClickListener not working
  • How is the Java Bootstrap Classloader loaded?
  • Check object is blank
  • Add image between text in JEditorPane
  • Java POI Excel creating new column and new rows
  • NullPointerException when managing bean with Spring+JSF(Primefaces)
  • Content autocomplete in spring tool suite 4
  • Super Noob Help ~ MouseEvent/Frame
  • Making one project with dependencies stand-alone in Eclipse (Java)
  • Jsoup- getting certain attributes from website
  • MongoDB, how to make a link between collections with JAVA code
  • Overriding an abstract method means class abstract class or not in java?
  • Bukkit teleport - nullPointerException
  • How to check if a Float variable is negative in java
  • Servlet: Cannot forward after response has been committed
  • sql query to select a specific cell in excel
  • How to make new picture when mouse dragged in java
  • Use Constants interface in GWT Project
  • Setting size of a JPanel in GroupLayout
  • Construct a map from two equal size arrays
  • Implementing Read-Write Locks with Double-Checked Locking
  • Disable NO_BUTTON from JOptionPane Java if a condition is true
  • UDP multiple socket
  • Android Threading: This Handler class should be static or leaks might occur
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org