FilterConfig的用法是什么？

9）FilterConfig的用法：

FilterConfig可以从web.xml当中取得一些有关Filter参数，当Web应用启动时就可以获得了。

例 1.2.9

package com;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
public class MarkToWinFilter implements Filter {
    public void destroy() {
    }
    public void doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain) throws IOException, ServletException {
    }
    protected FilterConfig filterConfig;
    public void init(FilterConfig fConfig) throws ServletException {
        this.filterConfig = fConfig;
        System.out.println(filterConfig.getInitParameter("name"));
    }
}

更多内容请见原文，原文转载自：https://blog.csdn.net/qq_44638460/article/details/104099777