@WebFilter(urlPatterns = "/*")
@Order(value = 1)
public class TestFilter implements Filter {
private static final Set<String> ALLOWED_PATHS = (new HashSet<>(
("/main/excludefilter", "/login", "/logout", "/register")));
@Override
public void init(FilterConfig filterConfig) throws ServletException {
("init-----------filter");
}
@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) req;
HttpServletResponse response = (HttpServletResponse) res;
String path = ().substring(().length()).replaceAll("[/]+$", "");
boolean allowedPath = ALLOWED_PATHS.contains(path);
if (allowedPath) {
("这里是不需要处理的url进入的方法");
(req, res);
}
else {
("这里是需要处理的url进入的方法");
}
}
@Override
public void destroy() {
("destroy----------filter");
}
}
@Order中的value越小,优先级越高。
ALLOWED_PATHS
这个是一个集合,存放的是需要排出的URL,用来判断是否是需要排除的URL。
关于为什么SpringBoot中使用了@WebFilter但是过滤器却没有生效:一定要加上@Configuration注解,@Service其实也可以,其他类似。