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1. The relationship between the HTTP protocol and the TCP/IP protocol Long connections and short connections to HTTP are essentially TCP long connections and short connections. HTTP belongs to the Application layer protocol, which uses the TCP protocol at the Transport Layer and IP protocol at the network layer. The IP protocol mainly solves the network routing and addressing problems, the TCP protocol mainly solves how to reliably pass the packet over the IP layer, so that all the packets sent
What are "persistent connections" and "Transient connections "? Interpretation 1 The so-called persistent connection means that the connection is maintained no matter whether or not it is used after a socket connection is established, but the security is poor; The so-called short connection means that the
In IntroductionC ++Before the internal connection and external connection in, describe some concepts. 1. Statement A declaration introduces a name into a scope; In c ++, it is legal to repeat a declaration in a scope. The following are declarations: Int foo (int, int); // function pre-declaration Typedef int Int; // typedef Declaration Class bar; // class pre-declaration Extern int g_var; // ext
1. The relationship between the HTTP protocol and the TCP/IP protocolLong connections and short connections to HTTP are essentially TCP long connections and short connections. HTTP belongs to the Application layer protocol, which uses the TCP protocol at the Transport Layer and IP protocol at the network layer. The IP protocol mainly solves the network routing and addressing problems, the TCP protocol mainly solves how to reliably pass the packet over the IP layer, so that all the packets sent
Analysis of Database Connection Pool (2), analysis of Database Connection Pool In the previous blog, I briefly introduced the connection process and resources consumed by common databases, and briefly discussed the connection pool, in this article, we will mainly look at the use of the database
Mondiran creates a connection and mondiran creates a connection.The url used to create a connection using jdbc is in the following format: jdbc: mysql: // hostname: port/database? Key1 = value1 key2 = value2, which must start with "jabc: mysql" in the URL. The address and port of the database server, database name, and other attributes must be declared, take "? "Segmentation, each attribute is separated by
1. The relationship between the HTTP protocol and the TCP/IP protocolLong connections and short connections to HTTP are essentially TCP long connections and short connections. HTTP belongs to the Application layer protocol, which uses the TCP protocol at the Transport Layer and IP protocol at the network layer. The IP protocol mainly solves the network routing and addressing problems, the TCP protocol mainly solves how to reliably pass the packet over the IP layer, so that all the packets sent b
[Reprinted]. net database connection pool and. net database connection I have previously written an article about database connection pool analysis and analysis, and used code to analyze the role of database connection pool. Here we need to clarify the concept that the database con
connection once for each HTTP operation, but the connection is interrupted at the end of the task.You can also say this: Short connection refers to the socket after the connection sent after receiving data immediately disconnect.Long connection:Connect-> transmit Data-> Keep connected-> transmit data-> ... -> closes t
A glimpse of Linux distinguishes hard connection from soft connection. I. Two Connection Files and creation methods in Linux. There are two Connection Files in Linux: soft connection and hard connection, although they are all conn
A glimpse of Linux's distinction between hard connection and soft connection I. Two connection files in Linux and their creation methods. There are two connection files in Linux mdash; although both soft connection and hard connection
First, what is a long connectionHTTP1.1 Specifies that long connections are maintained by default (HTTP persistent connection, also translated as persistent), data transfer is done to keep the TCP connection continuously open (no RST packet, no four handshake), waiting for the same domain name to continue to use this channel to transfer data The opposite is a short conn
Database Connection Pool, database connection pool java I. Why should I use the database connection pool? Database Connection resources are very expensive, especially when accessing the database through the network. A simple physical connection causes low performance. Theref
1. Relationship between HTTP protocol and TCP/IP protocol HTTP persistent connections and short connections are essentially TCP persistent connections and short connections. HTTP is an application layer protocol. TCP is used at the transport layer and IP is used at the network layer. The IP protocol mainly solves the problem of network routing and addressing. The TCP protocol mainly solves how to transmit packets reliably on the IP layer, so that the other end of the network receives all packets
What is a long connection?In fact, a long connection is relative to the usual short connection, that is, long time to maintain the client and the server connection state.The usual short connection operation steps are:Connect-"Data transfer-" close the
1. The relationship between the HTTP protocol and the TCP/IP protocolLong connections and short connections to HTTP are essentially TCP long connections and short connections. HTTP belongs to the Application layer protocol, which uses the TCP protocol at the Transport Layer and IP protocol at the network layer. The IP protocol mainly solves the network routing and addressing problems, the TCP protocol mainly solves how to reliably pass the packet over the IP layer, so that all the packets sent b
Turn from: 1. TCP connection When the TCP protocol is used in network communication, before the actual read and write operation, the server and the client must establish a connection, when the read and write operation is completed, the two sides no longer need the connection when they can release the connection, the
[Scenario description] The client is started, and the server is started. The client initiates a connection The client sends a packet containing the four bytes of "Hutu" Client disconnection, server disconnection [Process diagram]No picture, no truth! [Socket status change diagram]No picture, no truth! Establish a connection protocol (three-way handshake) (1) the client sends a TCP packet with SYN
Database Connection Pool Druid usage instructions, database connection druid Replace it with the optimal database connection pool based on factors such as comprehensive performance, reliability, stability, scalability, and ease of use. Druid: druid-1.0.29 Database Mysql.5.6.17 Replacement target: replace C3P0 with druid Reason for replacement: 1. Performance hika
I. Two Connection Files in Linux and two methods for creating Connection Files in Linux: soft connection and hard connection, although both are connection files, but there is a big difference between the two. One is a file (or directory) similar to the shortcut function of w
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