JNR UnixSocket Framework Guide and FAQ Answers
JNR UnixSocket Framework Guide and FAQ Answers
JNR UnixSocket is a Java framework for the Unix Domain Socket.It provides a simple and efficient way to perform process intercate (IPC) between the UNIX system.This article will introduce the guidelines for the JNR UnixSocket framework and provide some answers to some common questions.
1. Installation and configuration of JNR UnixSocket framework
To use the JNR UnixSocket framework, installation and configuration must be performed first.The following is a brief installation step:
1. Add the following dependencies to the pom.xml file of the project:
<dependency>
<groupId>com.github.jnr</groupId>
<artifactId>jnr-unixsocket</artifactId>
<version>0.3.0</version>
</dependency>
2. Import the required class in the code:
import jnr.unixsocket.UnixSocket;
import jnr.unixsocket.UnixSocketAddress;
3. Configure the path of the UNIX domain set file.On the Unix system, the socket is usually represented by files.You can put the slit file file at any position, just specify the correct path in the code.
2. Create UnixSocket client and server
The following is an example code for creating the UnixSocket client and server using the JNR UnixSocket framework:
1. Create the UnixSocket server:
UnixSocketServer server = new UnixSocketServer(new UnixSocketAddress("/path/to/socket"));
server.accept((socket) -> {
// Processing communication with the client
});
server.close();
2. Create the UnixSocket client:
UnixSocket client = UnixSocket.create();
client.connect(new UnixSocketAddress("/path/to/socket"));
// Communicate with the server
client.close();
3. UnixSocket communication example
Here are a simple UNIXSOCKET communication example. Among them, the client sends a message to the server, the server receives and prints the message:
1. Create the UnixSocket server:
UnixSocketServer server = new UnixSocketServer(new UnixSocketAddress("/path/to/socket"));
server.accept((socket) -> {
try {
DataInputStream inputStream = new DataInputStream(socket.getInputStream());
String message = inputStream.readUTF();
System.out.println ("The server receives the message:" + Message);
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
});
2. Create the UnixSocket client:
UnixSocket client = UnixSocket.create();
client.connect(new UnixSocketAddress("/path/to/socket"));
DataOutputStream outputStream = new DataOutputStream(client.getOutputStream());
outputStream.writeutf ("Hello, server!");
outputStream.flush();
client.close();
Fourth, JNR University
1. Why use UnixSocket instead of other IPC mechanisms?
UnixSocket provides a simple and efficient inter -communication mechanism, which is especially suitable for communication between the same machine process.
2. How to deal with concurrent connection?
The JNR UnixSocket framework provides a receiving recovery method that can be processed concurrently on the server.Whenever a new client is connected, the server calls the callback method.
3. How to deal with the problem of the type of file file?
When using JNR UnixSocket, you need to specify the path of the jacket file.You can choose to put the type file in a specific directory, or use the absolute path, and specify the correct path in the code.
4. Does it support the Windows system?
JNR UnixSocket is designed for the UNIX system and does not support the Windows system.If IPCs need to be performed on the Windows system, you can consider other IPC mechanisms, such as LocalSocket.
Summarize
This article introduces the guidelines and answers to the usage of the JNR UnixSocket framework.By using JNR UnixSocket, developers can easily communicate between the UNIX systems to achieve data exchange between various applications.
