170629、springboot编程之Druid数据源和监控配置二

上篇是一种配置方式，虽然我们创建了servlet、filter但是没有任务编码，看着是不是很不爽。ok，接下来说一下简介的配置方式，使用代码注册Servlet，也是我个人比较推荐的！

1、创建DruidConfiguration.java类

package com.rick.common.conf;

import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * Desc :  Druid数据源配置，这种方式不需要创建servlet、filter，
 *         不需要增加注解@ServletComponentScan
 * User : RICK
 * Time : 2017/8/22 10:15
 */

@Configuration
public class DruidConfiguration {
    /**
     * 注册一个StatViewServlet
     *
     * @return
     */
    @Bean
    public ServletRegistrationBean DruidStatViewServle2() {
        //org.springframework.boot.context.embedded.ServletRegistrationBean提供类的进行注册.
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid2/*");
        //添加初始化参数：initParams
        //白名单：
        servletRegistrationBean.addInitParameter("allow", "192.168.2.205,127.0.0.1");
        //IP黑名单 (存在共同时，deny优先于allow) : 如果满足deny的话提示:Sorry, you are not permitted to view this page.
        servletRegistrationBean.addInitParameter("deny", "192.168.2.100");
        //登录查看信息的账号密码.
        servletRegistrationBean.addInitParameter("loginUsername", "anna");
        servletRegistrationBean.addInitParameter("loginPassword", "anna");
        //是否能够重置数据.
        servletRegistrationBean.addInitParameter("resetEnable", "false");
        return servletRegistrationBean;
    }

    /**
     * 注册一个：filterRegistrationBean
     *
     * @return
     */
    @Bean
    public FilterRegistrationBean druidStatFilter2() {
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
        //添加过滤规则.
        filterRegistrationBean.addUrlPatterns("/*");
        //添加不需要忽略的格式信息.
        filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid2/*");
        return filterRegistrationBean;
    }
}

2、启动项目，访问http://localhost:8080/druid2/login.html效果和第一方式一样的，在这就不做截图了

3、项目清单