Filter其实就是一个Servlet
Filter可以产生response
Filter可以在Servlet被调用之前截获request
Filter可以哟活过来处理统一认证,过滤不雅字句等
第1题:
Given the web application deployment descriptor elements: 11.
第2题:
关于Servlet Filter,下列说法正确的有()
第3题:
Which is the true choice about the web container request processing model()?
第4题:
关于servlet的service方法,说法正确的是()。
第5题:
关于servlet的init方法,说法正确的是()。
第6题:
Which element is the parent of the
第7题:
A filter must implement the destroy method.
A filter must implement the doFilter method.
A servlet may have multiple filters associated with it.
A servlet that is to have a filter applied to it must implement the javax.servlet.FilterChain interface.
A filter that is part of a filter chain passes control to the next filter in the chain by invoking the FilterChain.forward method.
第8题:
是在uap项目的weB.xml中定义servlet、filter
在模块中定义servlet、filter时,首先是模块的启动顺序决定了模块中所有servlet、filter的顺序
如果同一个模块中servlet、filter定义在不同的文件中,文件被加载解析的顺序也会影响模块servlet、filter的顺序
模块中同一个配置文件中定义的servlet、filter按被定义的前后顺序处理
第9题:
Filter其实就是一个Servlet
Filter可以产生response
Filter可以在Servlet被调用之前截获request
Filter可以哟活过来处理统一认证,过滤不雅字句等
第10题:
<filter>
<filter-mapping>
<filter-name>
<filter-class>
第11题:
在servlet初始化后,由servlet容器调用
处理客户请求
可以访问外部资源
可获得请求信息
第12题:
〈filter〉
〈filter-mapping〉
〈servlet〉
〈servlet-mapping〉
第13题:
Which the three are true about servlet filters?()
第14题:
在J2EE中使用Servlet过滤器时,可以在web.xml文件的()元素中包括<init-param>元素。
第15题:
下列关于Servlet技术的特点说法正确的是()
第16题:
在J2EE中,使用Servlet过滤器时,可以在web.xml文件的()元素中包括
第17题:
在JAVA EE中,使用Servlet过滤器时,可以在web.xml文件的()元素中包括〈init-param〉元素。
第18题:
Which three are true about servlet filters?()
第19题:
The init method on a filter is called the first time a servlet mapped to that filter is invoked.
A filter defined for a servlet must always forward control to the next resource in the filter chain.
Filters associated with a named servlet are applied in the order they appear in the web application deployment descriptor file.
If the init method on a filter throws an UnavailableException, then the container will make no further attempt to execute it.
第20题:
Your filter class must implement an init method and a destroy method.
Your filter class must also implement javax.servlet.FilterChain.
When your filter chains to the next filter, it should pass the same arguments it received in its doFiltermethod.
The method that your filter invokes on the object it received that implements javax.servlet.FilterChaincan invoke either another filter or a servlet.
Your filter class must implement a doFilter method that takes, among other things, anHTTPServletRequest object and an HTTPServletResponse object.
第21题:
A filter must implement the destroy method
A filter must implement the doFilter method
A servlet may have multiple filters associated with it
A servlet that is to have a filter applied to it must implement the javax.servlet.FilterChain interface
A filter that is part of a filter chain passes control to the next filter in the chain by invoking the filterChain forward method
For each
第22题:
The init method on a filter is called the first time a servlet mapped to that filter is invoked
A filter defined for a servlet must always forward control to the next resource in the filter chain.
Filters associated with a named servlet are applied in the order they appear in the web application deployment descriptor file
If the init method on a filter throws an UnavailableException, then the container will make no further attempt to execute it
第23题:
可移植性好
功能强大
安全,简洁,和服务器紧密集成
高效耐用
Java语言能实现的功能,Servlet基本都能实现
第24题:
〈filter〉
〈filter-mapping〉
〈filter-name〉
〈filter-class〉