In your web application,you need to execute a block of code 

题目
单选题
In your web application,you need to execute a block of code whenever the session object is first created. Which design will accomplish this goal?()
A

Create an HttpSessionListener class and implement the sessionInitialized method with that block ofcode.

B

Create an HttpSessionActivationListener class and implement the sessionCreated method with thatblock of code.

C

Create a Filter class, call the getSession(false) method, and if the result was null, then execute that block of code.

D

Create an HttpSessionListener class and implement the sessionCreated method with that block of code.

参考答案和解析
正确答案: A
解析: 暂无解析
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第1题:

To generate recommendations to improve the performance of a set of SQL queries in an application, you execute the following blocks of code:The blocks of code execute successfully; however, you do not get the required outcome. What could be the reason?()

A. A template needs to be associated with the task.

B.A workload needs to be associated with the task.

C. The partial or complete workload scope needs to be associated with the task.

D. The type of structures (indexes, materialized views, or partitions) to be recommended need to be specified for the task.


参考答案:B

第2题:

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第3题:

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第4题:

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第8题:

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第10题:

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