FilterTests.java 文件源码

@Override
protected void doFilterInternal(HttpServletRequest request,
        HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {

    filterChain.doFilter(new HttpServletRequestWrapper(request) {
        @Override
        public Principal getUserPrincipal() {
            return new Principal() {
                @Override
                public String getName() {
                    return PRINCIPAL_NAME;
                }
            };
        }
    }, new HttpServletResponseWrapper(response));
}