Access-Control-Allow-Origin漏洞解决

漏洞描述：

 

修复方式：

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.HttpServletResponse;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

/**
 * @author yi wei 渗透测试的Filter类
 * @date create in 2021/11/30 10:43
 **/
@Component
@javax.servlet.annotation.WebFilter(urlPatterns = "/", filterName = "WebFilter")
public class WebFilter implements Filter {


  @Value(