單項(xiàng)選擇題

You need to create a servlet filter that stores all request headers to a database for all requests to the webapplication’s home page "/index.jsp".
Which HttpServletRequest method allows you to retrieve all of therequest headers？（）

A.String[] getHeaderNames（）
B.String[] getRequestHeaders（）
C.java.util.Iterator getHeaderNames（）
D.java.util.Iterator getRequestHeaders（）
E.java.util.Enumeration getHeaderNames（）

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多項(xiàng)選擇題

For an HttpServletResponse response，which two create a custom header？（）

A.response.setHeader（"X-MyHeader"， "34"）；
B.response.addHeader（"X-MyHeader"， "34"）；
C.response.setHeader（new HttpHeader（"X-MyHeader"， "34"））；
D.response.addHeader（new HttpHeader（"X-MyHeader"， "34"））；
E.response.addHeader（new ServletHeader（"X-MyHeader"， "34"））；

單項(xiàng)選擇題

Click the Exhibit button.
Given the HTML form： 1. 2. 3. 4.Name： 5.Price： 6. 7. 8. 9. Assume the product attribute does NOT yet exist in any scope. Which code snippet， in submit.jsp，instantiates an instance of com.example.Product that contains the results of the form submission？（）

A.
B.
C.
D.

You need to create a servlet filter that stores all request headers to a database for all requests to the webapplication’s home page "/index.jsp". Which HttpServletRequest method allows you to retrieve all of therequest headers？（）

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For an HttpServletResponse response，which two create a custom header？（）

You need to create a servlet filter that stores all request headers to a database for all requests to the webapplication’s home page "/index.jsp".
Which HttpServletRequest method allows you to retrieve all of therequest headers？（）

For an HttpServletResponse response，which two create a custom header？（）