What else must the developer do to ensure that the intended security goal is achieved（）？
A. Create a user called vip in the security realm
B. Define a group within the security realm and call it vip
C. Define a security-role named vip in the development descriptor
D. Declare a security-role-ref for vip in the deployment descriptor
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A. HTTP Basic Authentication
B. Form Based Authentication
C. HTTP Digest Authentication
D. HTTPS Client Authentication
A. FORM
B. DIGEST
C. NORMAL
D. ENCRYPTED
E. CLIENT-CERT
Which the three EL expressions， inserted at line 15， are valid and evaluate to "3"？ （）
A. ${vals.2 }
B. ${vals ["2"]}
C. ${vals.index }
D. ${vals[index]}
E. ${vals} [index]
F. ${vals.（vals.index）}
G. ${vals[vals[index-1]]}
A. Error
B. Exception
C. Throwable
D. Request error
E. Request exception
Which two are true？（）
A. The function method must have the signaturepublic： String spin（）.
B. The method must be mapped to the logical name “spin” in the web.xml file.
C. The function method must have the signature：public String spinIt（）.
D. The function method must have the signature：public static String spin（）.
E. The function method must have the signature：public static String spinIT（）.
F. The function class must be named Spinner， and must be in the package com.example.
A. ${product ID}
B. ${param.productID}
C. ${params.productID}
D. ${params.productID[1]}
E. ${paramvalues.productID}
F. ${paramValues.productID[0]}
G. ${pageContext.request.productID}
For a given product instance， which three jsp：setProperty attributes must be used to initialized its properties form the HTML form？ （）
A. id
B. name
C. type
D. param
E. property
F. reqParam
G. attribute
A session-scoped attribute， product， is stored by a servlet. That servlet then forwards to a JSP page. This attribute holds an instance of the com.Company.
Product class with a name property of “The Matrix” and price property of 39.95. Given the JSP page code snippet：
What is the response output of this JSP page code snippet？ （）
A. Default costs 0.0
B. Default costs 49.95
C. Default costs 39.95
D. The Matrix costs 0.0
E. The Matrix costs 49.95
F. The Matrix costs 39.95
A web application uses the HttpSession mechanism to determine if a user is “logged in”. When a user supplies a valid user name and password， an HttpSession is created for that user.
The user has access to the application for only 15 minutes after logging in. The code must determine how long the user has been logged in， and if this time is greater than 15 minutes， must destroy the HttpSession.
Which method in HttpSession is used to accomplish this？（）
A. getCreationTime
B. invalidateAfter
C. getLastAccessedTime
D. getMaxInactiveInterval
A. javax.servlet.http.HttpServletRequest
B. javax.servlet.http.HttpSessionContext
C. javax.servlet.http.HttpsServletResponse
D. javax.servlet.http.HttpSessionBindingEvent
E. javax.servlet.http.HttpSessionAttributeEvent
最新试题
Which two classes or interfaces provide a getSession method？（）
Which the two are true regarding a web application class loader？（）
A developer is designing a web application which extensively uses EJBs and JMS. The developer finds that there is a lot of duplicated code to build the JNDI contexts to access the beans and queues. Further， because of the complexity， there are numerous errors in the code. Which J2EE design pattern provides a solution for this problem？（）
Which the three are true about servlet filters？（）
Within the web application deployment descriptor， which defines a valid JNDI environment entry（）
Assume session is an HttpSession， and is not referenced anywhere else in ServletA. Which two changes， taken together， ensure that value is equal to “Hello” on line 23？ （）
Which code snippet， inserted at line 8， causes the value Company to be output？（）
Given a JSP error page， which implicit object refers to the uncaught Throwable that resulted in th epage being invoked？（）
Which path， relative to a web application’s root， identifies the web application’s deployment descriptor？（）
A session-scoped attribute， product， is stored by a servlet. That servlet then forwards to a JSP page. This attribute holds an instance of the com.Company. Product class with a name property of “The Matrix” and price property of 39.95. Given the JSP page code snippet：What is the response output of this JSP page code snippet？ （）