Spring html静态资源过滤

版权声明：本文为博主原创文章，转载请注明出处！ https://blog.csdn.net/u012604299/article/details/82779324

1、创建资源过滤类

import java.io.IOException;

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.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HtmlUrlFilter implements Filter{
	
	private String[] reqUrl;
	
	public HtmlUrlFilter() {
		
	}

	@Override
	public void init(FilterConfig config) throws ServletException {
		String url = config.getInitParameter("exclude");
		reqUrl = url.split("\\|");
	}
	
	@Override
	public void destroy() {
		
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain filterChain) throws IOException, ServletException {
		HttpServletRequest req = (HttpServletRequest) request;
		HttpServletResponse resp = (HttpServletResponse) response;
		// 获取请求url
		StringBuffer url = req.getRequestURL();
		if(url.indexOf(reqUrl[0]) > 0){
			// 重定向到页面
			resp.sendRedirect("redirect url");
		}else {
            // 继续执行请求
			filterChain.doFilter(req, resp);
		}
	}

}

2、在web.xml 中配置过滤器

<filter>
		<filter-name>htmlFilter</filter-name>
		<filter-class>com.***.filter.HtmlUrlFilter</filter-class>
		<init-param>
			<param-name>exclude</param-name>
			<param-value>test1.html|test2.html|test3.html</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>htmlFilter</filter-name>
		<url-pattern>*.html</url-pattern>
	</filter-mapping>