Weblogic 面试题与答案
问题 26. How does WebLogic support Java EE technologies?
WebLogic Server provides a comprehensive implementation of Java EE specifications, including servlets, JSP, EJB, JMS, JDBC, and more. It ensures compatibility with Java EE applications developed using standard APIs and specifications.
Example:
Developers can deploy Java EE applications on WebLogic Server without modification, benefiting from the platform's robust features.
问题 27. What is the purpose of the WebLogic T3 protocol?
The T3 protocol is a proprietary protocol used by WebLogic Server for communication between server instances. It supports efficient and secure communication, including features like object serialization and remote method invocation.
Example:
T3 is used for various purposes, including server-to-server communication in a cluster and communication between clients and the server.
问题 28. Explain the concept of WebLogic Work Managers.
Work Managers in WebLogic allow you to prioritize and manage the execution of work in a server instance. They help control resource usage and optimize application performance.
Example:
You can configure Work Managers to prioritize certain types of requests or limit the number of concurrent requests to prevent resource exhaustion.
问题 29. How do you monitor and tune WebLogic Server performance?
Monitoring WebLogic Server performance involves using tools like the Administration Console, WLDF, and third-party monitoring solutions. Tuning may involve adjusting configuration settings, optimizing code, and allocating resources appropriately.
Example:
For example, you can use WLDF to set up alerts for specific performance metrics and adjust server settings based on monitoring data to improve performance.
问题 30. What is the purpose of WebLogic JNDI (Java Naming and Directory Interface)?
JNDI in WebLogic allows Java applications to look up and access resources, such as data sources, EJBs, and JMS destinations, in a standardized way. It provides a naming and directory service for locating Java objects.
Example:
Developers use JNDI to obtain references to resources, making their applications more flexible and portable across different environments.
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- How does WebLogic support Java EE technologies?