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What is the java multithreaded application scenario?

2025-01-29 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

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This article mainly explains "what is the scenario of java multithreaded application". Interested friends may wish to take a look at it. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "what is the java multithreaded application scenario?"

The operating environment of this tutorial: windows7 system, java10 version, DELL G3 computer.

1. Application scenarios

(1) ordinary browsers and web services (the network is now written as an intermediate component to help you complete thread control), network processing requests, various dedicated servers (such as game servers)

(2) servlet multithreading.

(3) FTP download and multi-thread operation of files.

(4) Multithreading used in the database.

(5) tomcat and tomcat are multithreaded, and hundreds of clients access the same WEB application. After tomcat access, the subsequent processing is put into a new thread for processing, and the new thread finally calls our servlet program.

(6) background tasks: for example, regularly send mail to a large number of users (more than 100W); regularly update configuration files and task scheduling (such as quartz), and some monitoring is used to collect information on a regular basis.

(7) automatic operation processing: such as regular backup of log, regular backup of database, etc.

2. Examples

Wait timeout mode.

Developers often use this method to invoke scenarios. When a method is called, it waits for a period of time (usually a given period of time), and if the method can get the result within a given period of time, the result is returned immediately. On the contrary, the timeout returns the default result.

A simple instance of database connection pool.

/ / java.sql.Connection is an interface, and the final implementation is implemented by the database-driven provider. / / We construct a Connection from a dynamic proxy for demonstration purposes only. Public class ConnectionDriver {/ / processor class static class ConnectionHandler implements InvocationHandler {@ Overridepublic Object invoke (Object proxy, Method method, Object [] args) throws Throwable {Thread.sleep (100); return null;}} / / create a Connection agent that hibernates for 100ms public static final Connection createConnection () {return (Connection) Proxy.newProxyInstance (ConnectionDriver.class.getClassLoader (), new Class [] {Connection.class}, new ConnectionHandler ()) }} at this point, I believe you have a deeper understanding of "what the java multithreaded application scenario is". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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