What is the use of tomcat
The role of tomcat: 1. Parse HTTP requests sent by users; 2. Manage the life cycle of Servlet applications; 3. Map the URL requested by the client to the corresponding Servlet; 4. Cooperate with the Servlet program to process HTTP request; 5. Provide Web services; 6. Support multiple protocols; 7. Scalability; 8. High availability and reliability; 9. Easy management and maintenance; 10. Support cluster deployment. Using Tomcat, you can quickly build stable and reliable web applications to provide users with better experience and services.
The operating system for this tutorial: Windows 10 system, DELL G3 computer.
Tomcat is a free, open source web application server. It is mainly used to open the listening port to listen to user requests, parse the HTTP requests sent by users, and then access the specified application system and return the returned The page is returned to the user through Tomcat. The following are the main functions and functions of Tomcat:
1. Parse the HTTP request sent by the user: Tomcat passes the user's HTTP request to The container performs business processing, and finally responds to the outside world with the results processed by the container.
2. Manage the life cycle of Servlet applications: Tomcat is responsible for creating Servlets, calling the corresponding Servlets when processing requests, and destroying Servlets when they are no longer needed.
3. Map the URL requested by the client to the corresponding Servlet: Tomcat maps the URL to the corresponding Servlet through the configuration file, so that when the user accesses a URL, it can be automatically called The corresponding Servlet handles the request.
4. Cooperate with the Servlet program to process HTTP requests: Tomcat can cooperate with the Servlet program to process HTTP requests, pass the request to the Servlet for processing, and return the processing results to the user.
5. Providing Web services: Tomcat is a Web application server that can provide Web services and allow other systems to access the Web services it provides through the HTTP protocol.
6. Support multiple protocols: Tomcat not only supports HTTP protocol, but also supports other protocols such as JMX, JNDI, LDAP and so on.
7. Scalability: Tomcat has good scalability and its functions can be extended by adding components or plug-ins.
8. High availability and reliability: Tomcat has been optimized and tested to provide high availability and reliability to ensure the stable operation of web applications.
9. Easy management and maintenance: Tomcat provides a wealth of management tools and documents, allowing administrators to easily manage and maintain the Tomcat server.
10. Support cluster deployment: Tomcat supports cluster deployment, which can achieve load balancing and failover, and improve the availability and reliability of the system.
In short, Tomcat is a powerful, easy-to-use, and highly scalable Web application server. It is mainly used to parse HTTP requests from users, manage the life cycle of Servlet applications, and map URLs to corresponding Servlet, cooperate with Servlet program to process HTTP requests, etc. By using Tomcat, developers can quickly build stable and reliable web applications to provide users with better experiences and services.
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