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Brothers of the previous one Previous address: https://www.jianshu.com/p/457b24e5e0a5 UDP based UDP protocol takes data packets as the carrier of data transmission, that is, when data transmission, we need to package data into datagrams, in which the host address and port number are specified, and then the datagrams are sent out, using two key ...

Case: multi task udp chat Explain Write a program with two threads Thread 1 is used to receive data and display Thread 2 is used to detect keyboard data and send data through udp Requirement Achieve the above requirements Summarize the characteristics of multitask program Reference code: import socket import threading def send_msg(udp_socket) ...

Please indicate the source of Reprint: http://blog.csdn.net/l1028386804/article/details/78965865 Most of DNS resolution is a domain name corresponding to an IP address, but through DNS polling technology, a domain name corresponding to multiple IPS can be achieved, so as to achieve the simplest and most efficient load balancing. However, the b ...

A simple case client: package demo; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.Socket; public class TCPClient { public static void main(String[] args) throws IOException { Socket socket = new Socket("127.0.0.1", 7000); OutputStream out = socket.getOutputStream(); ...

Java explains the basic implementation of RPC RPC remote procedure call can be said to be the basis of distributed system. In this paper, we will demonstrate what happens to a normal RPC call through Java. I have seen people ask on the Internet why RPC is called remote procedure call instead of RMC remote method call. In my opinion, RPC is a re ...

Catalog 1. Environmental planning 2. binlog is enabled for all Mysql to ensure that the server IDs of all MySQL are different 3. The master database authorizes the master-slave replication user 4. The main database makes the database data fully available, and then pushes the backup file to the slave database 5. Restore backup files from the d ...

IO model elaboration IO model is to use what kind of channel to send and receive data. Java supports three kinds of network programming IO modes: BIO, NIO, AIO BIO(Blocking IO) Synchronous blocking model, one client connection corresponds to one processing thread Disadvantages: 1. Read operation in IO code is blocking operation. If the c ...

Thank you for your reference- http://bjbsair.com/2020-04-01/tech-info/18504.html Today, I introduce how to create WebSocket service with Go language. The first two parts of this article briefly introduce the WebSocket protocol and how to create WebSocket service with Go standard library. In the third part, we use the gorilla/websocket library ...

For the convenience of not starting from scratch, experiment directly on the existing database system, omit to install the database software (the method is similar), the following is an example of adding an instance essential information: [root@localhost ~]# cat /etc/issue CentOS release 6.5 (Final) mysql> \s ...

Before, I have done the communication under the LAN. I found that I couldn't use the two computers on different LAN. I always want to realize something that can communicate in Wan! So there's this little project! Implementation ideas: Technology concept Usage method test result Code Implementation ideas: ...