druid控制台無法監控sql問題

springboot+mybatisplus+druid按照教程配置好之后，druid控制台監控sql頁面無數據，filter類名為空，貌似沒有注冊進去去，代碼如下：

@Configuration
public class DruidConfiguration {

    
    @Bean
    public ServletRegistrationBean druidServlet() {
        ServletRegistrationBean<Servlet> bean = new ServletRegistrationBean<>(new StatViewServlet(),"/druid/*");
        Map<String,String> map = new HashMap<>();
        map.put("loginUsername","admin");
        map.put("loginPassword","123456");
        map.put("deny","192.168.47.156");
        bean.setInitParameters(map);
        return bean;

    }

    @Bean
    public FilterRegistrationBean filterRegistrationBean() {
        FilterRegistrationBean<Filter> bean = new FilterRegistrationBean<>();
        bean.setFilter(new WebStatFilter());
        Map<String,String> map = new HashMap<>();
        map.put("exclusions","*.js,*.css,/druid/*");
        //攔截所有請求
        bean.setUrlPatterns(Arrays.asList("/*"));
        bean.setInitParameters(map);
        return bean;

    }


    @Bean
    public WallFilter wallFilter(){
        WallFilter wallFilter = new WallFilter();
        wallFilter.setConfig(wallConfig());
        return wallFilter;
    }

    @Bean
    public WallConfig wallConfig(){
        WallConfig wallConfig = new WallConfig();
        wallConfig.setMultiStatementAllow(true);
        //允許一次執行多條語句
        wallConfig.setNoneBaseStatementAllow(true);
        //是否允許非以上基本語句的其他語句
        wallConfig.setStrictSyntaxCheck(false);
        //是否進行嚴格的語法檢測
        return wallConfig;
    }

    @Bean(name="dataSource")
    public DataSource dataSource(){
        return new DruidDataSource();
    }

    // 配置事物管理器
    @Bean(name="transactionManager")
    public DataSourceTransactionManager transactionManager(){
        return new DataSourceTransactionManager(dataSource());
    }

}
這段只有一個wallfilter能在控制台顯示，statfilter無效

解決辦法：
在jvm啟動參數中加上：
-Ddruid.filters=mergeStat -Ddruid.useGlobalDataSourceStat=true，
我的是這個情況.


原文地址：https://github.com/alibaba/druid/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98