SprintBoot2.0注册自定义Filter同一个请求被拦截两次

[流烟默]

自定义Filter配置类如下：

@Configuration
public class MyFilterConfig {

    @Bean
    public SysVisitFilter sysVisitFilter(){
        return new SysVisitFilter();
    }

    @Bean
    public FilterRegistrationBean sysVisitFilterBean() {
        FilterRegistrationBean registrationBean = new FilterRegistrationBean();
        registrationBean.setFilter(new DelegatingFilterProxy("sysVisitFilter",null));
//        registrationBean.setFilter(new SysVisitFilter());
//        registrationBean.addInitParameter("targetFilterLifecycle","true");
        registrationBean.addUrlPatterns("/*");
        registrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico");
        registrationBean.setDispatcherTypes(DispatcherType.REQUEST);
        return registrationBean;
    }
}

SYSVisitFilter如下：

public class SysVisitFilter implements Filter {

    private static final Logger log = LoggerFactory.getLogger(SysVisitFilter.class);

    @Autowired
    SysUser sysUser;

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        log.debug("SysVisitFilter is to be inited...");
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        String param = httpRequest.getParameter("param");
        String mobileNum = httpRequest.getParameter("mobileNum");

        if (httpRequest.getRequestURI().indexOf(".")>0) {
            log.debug("访问静态资源 !");
        }else{
            StringBuffer url = httpRequest.getRequestURL();
            log.debug("requestURI: "+httpRequest.getRequestURI()+"--->requestURL: "+httpRequest.getRequestURL()+"--hashcode"+this.hashCode()+"--"+this.getClass());
            log.debug("this bean is : "+this+"--user: "+sysUser);
        }
        chain.doFilter(request,response);
    }

    @Override
    public void destroy() {
        log.debug("SysVisitFilter is to be destroied..");
    }
}

浏览器发起一个请求时，如http://localhost:8080/hello，控制台会打印两遍Filter中的输出，如下图：


正常应该输出一次才对，请助！！！

[流烟默]

如果把这句话放开，还会初始化两次：
// registrationBean.addInitParameter("targetFilterLifecycle","true");

com.test.filter.SysVisitFilter : SysVisitFilter is to be inited...
com.test.filter.SysVisitFilter : SysVisitFilter is to be inited...

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[流烟默]

已经解决了，需要查看的请移步我的博客：https://blog.csdn.net/J080624/article/details/78915382

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