FilterChain (Java EE 5)

FilterChain 是 servlet 容器为开发人员提供的对象，它提供了对某一资源的已过滤请求调用链的视图。过滤器使用 FilterChain 调用链中的下一个过滤器，如果调用的过滤器是链中的最后一个过滤器，则调用链末尾的资源。

since	en Servlet 2.3
See also	javax.servlet.Filter

英文文档：

A FilterChain is an object provided by the servlet container to the developer giving a view into the invocation chain of a filtered request for a resource. Filters use the FilterChain to invoke the next filter in the chain, or if the calling filter is the last filter in the chain, to invoke the resource at the end of the chain.

Since:

Servlet 2.3

See Also:

Filter

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Method Summary
void	doFilter(ServletRequest request, ServletResponse response)           Causes the next filter in the chain to be invoked, or if the calling filter is the last filter in the chain, causes the resource at the end of the chain to be invoked.

 

Method Detail

public void doFilter(ServletRequest request, ServletResponse response) throws java.io.IOException, ServletException
导致链中的下一个过滤器被调用，如果调用的过滤器是链中的最后一个过滤器，则导致调用链末尾的资源。

request	沿着链传递的请求。
response	沿着链传递的响应。
since	2.3

英文文档：

doFilter

void doFilter(ServletRequest request,
              ServletResponse response)
              throws IOException,
                     ServletException

Causes the next filter in the chain to be invoked, or if the calling filter is the last filter in the chain, causes the resource at the end of the chain to be invoked.

Parameters:

request - the request to pass along the chain.

response - the response to pass along the chain.

Throws:

IOException

ServletException

Since:

2.3

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