解决Springboot @WebFilter拦截器未生效问题

问题描述

@WebFilter(filterName = “ssoFilter”,urlPatterns = “/*”)

未生效拦截器

解决方法

在springboot启动类上添加

@ServletComponentScan(basePackages = “full.package.path”)

路径替换为@WebFilter所在包

补充知识:在spring boot中使用@WebFilter配置filter(包括排除URL)

我就废话不多说了,大家还是直接看代码吧~

@WebFilter(urlPatterns = "/*")

@Order(value = 1)

public class TestFilter implements Filter {

private static final Set<String> ALLOWED_PATHS = Collections.unmodifiableSet(new HashSet<>(

Arrays.asList("/main/excludefilter", "/login", "/logout", "/register")));

@Override

public void init(FilterConfig filterConfig) throws ServletException {

System.out.println("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 = request.getRequestURI().substring(request.getContextPath().length()).replaceAll("[/]+$", "");

boolean allowedPath = ALLOWED_PATHS.contains(path);

if (allowedPath) {

System.out.println("这里是不需要处理的url进入的方法");

chain.doFilter(req, res);

}

else {

System.out.println("这里是需要处理的url进入的方法");

}

}

@Override

public void destroy() {

System.out.println("destroy----------filter");

}

}

@Order中的value越小,优先级越高。

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