shiro SpringBoot 整合前后端分离开发遇到的跨域问题

Redirect is not allowed for a preflight request 。
这是实现简单跨域后报的跨域问题。

我的解决方法
使用过滤器

public class crosFilter implements Filter {

@Override
public void doFilter(ServletRequest req, ServletResponse resp,
                     FilterChain chain) throws IOException, ServletException {
    HttpServletRequest request = (HttpServletRequest) req;
    HttpServletResponse response = (HttpServletResponse) resp;

    response.setHeader("Access-control-Allow-Origin", request.getHeader("Origin"));
    response.setHeader("Access-Control-Allow-Credentials", "true");
    response.setHeader("Access-Control-Allow-Headers", request.getHeader("Access-Control-Request-Headers"));
    response.addHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, PUT");
    if ("OPTIONS".equals(request.getMethod())) {
        response.setStatus(HttpStatus.NO_CONTENT.value());
        return;
    } else {
        chain.doFilter(request, response);
    }
}

}

在注入的时候，将这个filter的顺序设置成1

@Bean
public FilterRegistrationBean replaceTokenFilter(){
FilterRegistrationBean registration = new FilterRegistrationBean();
registration.setDispatcherTypes(DispatcherType.REQUEST);
registration.setFilter( new crosFilter ());
registration.addUrlPatterns("/*");
registration.setName("crosFilter ");
registration.setOrder(1);
return registration;
}