单选题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[] getHeaderNa
题目
单选题
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（）