Java SE foundation UDP and TCP

summary Java and C#, can use UDP and TCP protocols for network communication. This chapter only describes the basic use of UDP and TCP. Compared with various standard / non-standard TCP, ModbusTCP (occupying 502 port) and lower computer custom network communication protocols required when writing the upper computer, Java TCP and UDP progra ...

Posted by Duswa on Tue, 08 Mar 2022 21:23:45 +0100

Network debugging assistant: Android APP integrates TCP, UDP, classic Bluetooth and low-power Bluetooth debugging demo

1. Preface I finally don't need to debug a hardware device and install an APP. If I download someone else's network debugging assistant in the APP store and have advertisements, I might as well write a relatively complete network debugging assistant directly. At present, the supported functions include tcp client and server, udp, low-power Blu ...

Posted by rowman on Tue, 08 Mar 2022 00:18:17 +0100

[computer network] - Protocol layering

1. Agreement: an agreement. 2. Protocol layering: (1) OSI (open system interconnection) seven layer model (2) TCP/IP five layer model (3) TCP/IP four layer model Layer namefunctionRelated agreementsapplication layerResponsible for communication between applications HTTP SSH DNS Display layerConvert the network datagram into the package req ...

Posted by mrpickleman on Fri, 04 Mar 2022 14:21:06 +0100

Day 28 of learning big data - UDP, TCP transmission, classloader, reflection and dynamic proxy

UDP transport 1: Establish udp socket service 2: Receive data through receive method 3: Store the received data in the packet object 4: Analyze the received data through the function of packet object 5: Resources can be closed client /* Add feedback according to our normal thinking, but there is no response. Why The reas ...

Posted by zarp on Sat, 26 Feb 2022 15:23:27 +0100

Use of Java UDP broadcast and multicast -- Series 1

1.UDP broadcast. The client opens a port to listen to data. The server specifies the port to send data, and the client can receive the data. The broadcast address bound by the server is 255.255.255.255 Client listening: public class BroadcastClient { private int MessageIndex = 0; private int port = 6787;//Data listening binding port ...

Posted by yuws on Fri, 25 Feb 2022 03:39:18 +0100

UDP, TCP, Lambda expression, interface composition update, method reference

UDP communication principle: UDP protocol is an unreliable network protocol. It has a Socket object at both ends of the communication, but these two sockets are only the objects to send and receive data Both sides of communication based on UDP protocol have no so-called concept of client and server The datagram Socket class provided by Java i ...

Posted by mooler on Sun, 20 Feb 2022 10:31:58 +0100

Network programming (preliminary understanding of TCP, UDP and URL)

catalogue 1, There are two main problems in network programming: 2, Two elements in network programming: 3, Communication element 1: IP and port number 4, Realize TCP network programming Example 1: the client sends information to the server, which displays the information on the console. Example 2: the client sends a file to the server, w ...

Posted by PC Nerd on Thu, 17 Feb 2022 12:33:18 +0100

Java Network Programming -- UDP

UDP UDP protocol is an unreliable network protocol. It establishes a Socket object at both ends of the communication, but these two sockets are only the objects to send and receive data. Therefore, for both sides of communication based on UDP protocol, there is no so-called concept of client and server Java provides DatagramSocket class as a ...

Posted by kwstephenchan on Wed, 09 Feb 2022 19:24:03 +0100

Network programming learning diary ---- UDP protocol, IO model, blocking IO

1, Network programming communication protocol-- UDP protocol. 1. What are the UDP protocol features? The full name of UDP protocol is "User Data Protocol / user data packet protocol". This protocol is based on connectionless communication, so there are no connect() and accept() in the code of UDP protocol. 2. UDP protocol design ste ...

Posted by jawa on Wed, 09 Feb 2022 13:44:11 +0100

Java network programming

Network programming Overview of network programming Computer network: connect computers with independent functions distributed in different regions with lines through communication equipment to realize the sharing of information and resources. Network programming: Java language supports network. Java encapsulates the implementation detai ...

Posted by holladb on Fri, 28 Jan 2022 10:47:23 +0100