At present, we often use Java Web servers Weblogic and tomcat these two items. What are the differences and characteristics between the two Java Web servers.
1. Features of weblogic introduction
WebLogic is an enterprise application server, developed by BEA Systems, and currently owned by Oracle. It supports the Java EE specification and provides many functions and tools for building, deploying, and managing enterprise applications. WebLogic has high scalability and reliability, can handle a large number of concurrent requests, and supports load balancing, failover and fault tolerance mechanisms in a distributed environment. It also provides a wealth of security features, including SSL encryption, authentication and authorization.
WebLogic also provides the following features:
Support dynamic clusters: nodes can be dynamically added or deleted according to the load conditions to achieve automatic load balancing.
Embedded JVM: The WebLogic server has a built-in JVM, so the application has higher performance, and can directly manage the parameters and configuration of the JVM.
Support Java EE specification: WebLogic supports Java EE specification, including EJB, JMS, JPA, Servlet, JSP, etc., and can easily build and deploy Java EE applications.
Provide management tools: WebLogic provides management tools such as WebLogic Server Administration Console and WebLogic Scripting Tool, which can easily manage and monitor the running status of applications.
In general, WebLogic is a powerful enterprise application server, which is suitable for building and deploying large-scale, highly reliable enterprise applications.
2. Tomcat Introduction
Tomcat is an open source Java servlet container maintained by the Apache Software Foundation. It implements the Java Servlet and JavaServer Pages (JSP) specifications, and provides a running environment in which developers can develop and deploy Java Web applications.
Tomcat has the following characteristics:
Open source free: Tomcat is an open source software that can be downloaded and used freely without any license fee.
Lightweight: Compared with other enterprise application servers, Tomcat is a lightweight servlet container, with small startup time and memory consumption.
Easy to deploy and configure: Tomcat's configuration file and directory structure are very simple, so it is easy to deploy and configure.
High scalability: Tomcat supports various plug-ins and extensions, which can flexibly meet different needs.
Support multiple operating systems: Tomcat can run on multiple operating systems, including Windows, Linux, Unix, etc.
Good security performance: Tomcat provides many security mechanisms, such as SSL and access control, to ensure the security of Web applications.
In general, Tomcat is an open source servlet container for small and medium-sized Java Web applications. It is lightweight, easy to deploy, highly extensible, and can also meet the needs of different applications through plug-ins and extensions.
3、 Weblogic and tomcat contrast
WebLogic and Tomcat are both popular Java Web servers, but they have some differences.
Functions: WebLogic is an enterprise application server that provides more functions and features, such as transaction management, clustering, load balancing, security, etc. Tomcat is more lightweight and only provides basic servlet/JSP container functions.
Performance: Since WebLogic provides more functions, it needs more resources to run, such as memory and CPU. In contrast, Tomcat has higher performance because it is more lightweight.
Deployment: In terms of deployment, WebLogic takes longer to start and stop the server, and the server needs to be restarted to modify the configuration file. Tomcat can start and stop faster, and changes to the configuration file can take effect in real time.
Cost: WebLogic is a commercial software and requires a license to use it. Tomcat is free open source software, which can be freely used and modified.
In general, WebLogic is suitable for large enterprise applications and requires more functionality and reliability, while Tomcat is suitable for small projects or test environments and requires higher performance and flexibility.