一、为druid管理界面添加用户密码配置文件版

只添加下面配置：

# druid配置用户名和密码 访问链接：ip:host/druid/sql.html
spring.datasource.druid.stat-view-servlet.login-username = admin
spring.datasource.druid.stat-view-servlet.login-password = admin123

二、druid管理界面添加用户密码代码版

只添加下面代码

/**
 * durid管理界面和过滤器配置
 */
@Configuration
public class DruidConfig {

    @Bean(name = "druidStatView")
    public ServletRegistrationBean druidStatView() {
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        //IP白名单 (没有配置或者为空，则允许所有访问)
        registrationBean.addInitParameter("allow", "");
        //IP黑名单 (存在共同时，deny优先于allow)
        registrationBean.addInitParameter("deny", "");
        registrationBean.addInitParameter("loginUsername", "admin");
        registrationBean.addInitParameter("loginPassword", "Mjk90df@f@#d");
        registrationBean.addInitParameter("resetEnable", "false");
        return registrationBean;
    }

    @Bean(name = "druidWebStatFilter")
    public FilterRegistrationBean druidWebStatFilter() {
        FilterRegistrationBean registrationBean = new FilterRegistrationBean(new WebStatFilter());
        registrationBean.addUrlPatterns("/*");
        registrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*");
        return registrationBean;
    }
}

三、关闭druid管理界面【外界不可访问】

因为安全问题，需要关闭公网的druid界面，只需要添加一个配置：

spring.datasource.druid.stat-view-servlet.enabled = false

访问后直接报这个错：