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Using HornetQ for message processing in Java API development

Using HornetQ for message processing in Java API development With the rapid development of the Internet, a large number of information interactions have emerged, and message queues have become an important means to solve problems such as high concurrency, high availability, and asynchronous processing. HornetQ is a high-performance, high-availability open source messaging middleware based on the JMS protocol developed by JBoss. This article will introduce how to use HornetQ for message processing in JavaAPI development. 1. Quick Start Download Horne

Jun 17, 2023 pm 11:27 PM

Java APIHornetQ消息处理

Database operation skills in Java language

Database operation skills in Java language As a language widely used in enterprise-level development, database operations in Java language are an essential part. Databases are used in Java development to provide data storage and management for applications, and a large number of data queries and data operations require efficient skills to operate the database. This article will introduce some tips and best practices for database operations in the Java language. Using PreparedStatement to execute SQL statements in Java language, in order to avoid

Jun 11, 2023 pm 09:06 PM

技巧数据库Java

Introduction to social application development in Java language

As social media becomes more and more popular, social applications have become an indispensable part of people's lives. With the development of the Java language, more and more social applications are beginning to be developed using the Java language. Then this article will start from the perspective of Java language and introduce readers to social application development in Java language. 1. Overview of social applications in Java language Java language is a widely used programming language. Its advantages include cross-platform nature, the existence of a large number of tool classes and libraries, garbage collection, etc. At the same time, J

Jun 10, 2023 pm 09:15 PM

开发Java社交应用

How to build a Java language application server

With the popularity of the Internet and the needs of application development, Java language application server has gradually become one of the important support platforms. It not only provides a running environment, but also supports a variety of program development languages, such as Java, PHP and Python. This article will introduce how to build a Java language application server to help readers quickly build an application server. 1. Choose the appropriate Java application server. Common Java application servers currently on the market include Tomcat, GlassFish, and Jet.

Jun 09, 2023 pm 11:13 PM

Java搭建应用服务器

Introduction to Spring Boot framework in Java language

Introduction to the SpringBoot framework in the Java language. In recent years, the Java language has become the first choice for enterprise-level applications. As a powerful tool in the Java world, the Spring framework plays an important role in Java enterprise-level development. Spring's sub-framework SpringBoot allows developers to happily develop Java Web applications. This article will introduce the basic concepts, features and advantages of the SpringBoot framework, as well as practical cases. 1. Sp

Jun 09, 2023 pm 10:37 PM

Java语言Spring Boot框架介绍

Introduction to medical and health application development in Java language

With the development of medical technology and the popularity of the Internet, medical and health applications have attracted more and more attention. Using Java language to develop medical and health applications can not only improve development efficiency, but also ensure the stability and security of the software. This article will introduce the application of Java language in medical and health application development. 1. Advantages of Java language Java language is a cross-platform programming language with the following advantages: 1. Portability: Java code can run on different operating systems without modifying the code. 2. Reliability:

Jun 09, 2023 pm 09:15 PM

Java医疗健康应用开发介绍

Open source communities and open source projects in Java

Java is a popular programming language, and its large number of open source communities and projects provide a lot of help for Java programming. The importance of open source communities and projects is increasingly recognized by people. This article will introduce the concept and importance of Java open source communities and projects, as well as some popular open source projects and communities. What are open source communities and projects? Simply put, open source communities and projects are organizations where developers work together to develop software using open source code. These projects are usually licensed under some open source software license, allowing developers

Jun 09, 2023 am 09:57 AM

java编程Java开源社区开源项目

How to realize reverse proxy and dynamic separation of nginx+tomcat

1. Install nginx and access static resources. After successful installation, start nginx and enter http://localhost/ in the browser to display the welcome page. Create the directory static\test1\js\common under nginx and put jquery.xx.js Go in. ps:static represents the main directory of static files, test1 represents the project name under tomcat. This machine uses jquery-1.12.1.min.js to modify the configuration file nginx.conf and add the following configuration: #Regular matches requests starting with static, such as /test1/static/js...location^~/

Jun 04, 2023 am 09:25 AM

nginxtomcat

How Springboot implements authentication and dynamic permission management

Supplementary knowledge points Shiro cache process analysis In the original project, since there is no cache configured, the database will be queried every time it is necessary to verify whether the current subject has access rights. Since permission data is typically data with more reading and less writing, we should add caching support to it. When we add the cache, Shiro first queries the cache for relevant data when doing authentication. If it is not in the cache, it queries the database and writes the found data into the cache. The data can be obtained from the cache the next time it is checked. Not obtained from the database. This will improve the performance of our application. Next, we implement the cache management part of shiro. Shiro session mechanism Shiro provides complete enterprise-level session management functions.

Jun 03, 2023 pm 09:46 PM

springboot

What are the two methods of springboot hot deployment?

The difference between springboot and springmvc: springboot has embedded tomcat, Jetty and Undertow containers, which can be run directly without deployment; springboot automatically configures, reducing a large number of configurations of xml files; reducing the complexity of project construction. SpringMVC is based on Servlet The MVC framework mainly solves the problems of WEB development, because Spring's configuration is very complex, and various XML, JavaConfig, and hin are cumbersome to process. Therefore, in order to simplify the use of developers, Springboot was creatively launched. Conventions are better than configurations, which simplifies the use of spring.

Jun 03, 2023 am 11:51 AM

SpringBoot

How to use the linux ls command

The ls command is the most commonly used command under Linux. The ls command is the abbreviation of list. By default, ls is used to print out the list of the current directory. If ls specifies another directory, the list of files and folders in the specified directory will be displayed. Through the ls command, you can not only view the files contained in the Linux folder, but also view file permissions (including directory, folder, file permissions), view directory information, and so on. The ls command is used a lot in daily Linux operations! 1. Command format: ls [option] [directory name] 2. Command function: List all subdirectories and files in the target directory. 3. Commonly used parameters: -a, –all lists all files in the directory, including implicit files starting with. -a is the same as -a, but not

Jun 02, 2023 pm 10:10 PM

Linux

How to configure the MySQL port to avoid being occupied

Problems caused by port occupation 1. MySQL occupies the ports of other applications, causing other applications to be unable to run (for example, Tomcat uses port 80, and Tomcat cannot start after MySQL occupies the port). 2. The MySQL port is occupied by other applications, causing MySQL to be unable to run (for example, if an application occupies MySQL's 3306 port, MySQL cannot be started). 3. Because many ports are used by default, for example, 3306 is the default port of MySQL. If MySQL does not use port 3306, other applications that require database interaction need to be reconfigured (direct them to the correct port). Solution The MySQL port can be set in my.

May 30, 2023 pm 09:03 PM

MySQL

How to install mysql database and configure Java project in linux

1. Install the mysql database ① Download and decompress and upload to the /opt/soft directory (the soft directory is created by yourself) ② Decompress: tar-xvfmysql-5.7.27-1.el7.x86_64.rpm-bundle.tar ③ Clear the linux version Database 1. Check if there is an old version of the database: rpm-qa|grepmysqlrpm-qa|grepmariadb2. Uninstall the existing database: (uninstallation will also uninstall the dependent packages of this package) yum-yremovemariadb-libs.x86_64 ④Install mysql Community edition service package: rpm-ivhmysql-com

May 30, 2023 pm 06:55 PM

LinuxMySQLJava

How to use redis session sharing with nginx+tomcat

Environment preparation 1. Prepare an nginx server ip192.168.1.133 port 81. Installation process: #First install dependencies: yum-yinstallgcc-c++yum-yinstallpcrepcre-develyum-yinstallzlibzlib-develyum-yinstallopensslopenssl—devel #Note: Installation of nginx is required Use root user to install #Create an nginx directory mkdir/usr/local/src/nginx #Enter the nginx directory cd/usr/local/src/nginx #Download or

May 30, 2023 pm 06:40 PM

redisnginxtomcat