Spring Boot配置连接池Durid

   SpringBoot初始教程之数据库连接池(druid)(六)： 
 

 
  https://blog.csdn.net/king_is_everyone/article/details/53098350 
 

   这里给出链接上mybatis的配置之一 
 

 
  1、先配置：durid 
 

   package com.example.demo.CoreDemo; 
 

   import com.alibaba.druid.pool.DruidDataSource; 
 

   import com.alibaba.druid.support.http.StatViewServlet; 
 

   import com.alibaba.druid.support.http.WebStatFilter; 
 

   import org.springframework.boot.context.properties.ConfigurationProperties; 
 

   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; 
 

   import javax.sql.DataSource; 
 

/**

   * @Auther: 封玉书 FYS 
 

   * @Date: 2018/6/11 17:30 
 

   * @Description: durid配置 
 

   * 访问地址：http://localhost:8080/druid/index.html 
 

   * 这里的用户密码是登录上面地址的。在下面可以设置。这里设置为：root/root 
 

*/

   @Configuration 
 

   public class DruidConfiguration 
 

{

   @Bean 
 

   @ConfigurationProperties(prefix = "spring.datasource") 
 

   public DataSource druidDataSource() 
 

{

   return new DruidDataSource(); 
 

}

   @Bean 
 

   public ServletRegistrationBean druidServlet() 
 

{

   ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*"); 
 

   //白名单： 
 

   servletRegistrationBean.addInitParameter("allow", "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", "192.168.1.73"); 
 

   //登录查看信息的账号密码. 
 

 
   servletRegistrationBean.addInitParameter("loginUsername", "root"); 
 

 
   servletRegistrationBean.addInitParameter("loginPassword", "root"); 
 

   //是否能够重置数据. 
 

   servletRegistrationBean.addInitParameter("resetEnable", "false"); 
 

   return servletRegistrationBean; 
 

}

   @Bean 
 

   public FilterRegistrationBean filterRegistrationBean() 
 

{

   FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(); 
 

   filterRegistrationBean.setFilter(new WebStatFilter()); 
 

   filterRegistrationBean.addUrlPatterns("/*"); 
 

   filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"); 
 

   return filterRegistrationBean; 
 

}

}

 
  2、需要到DemoApplication增加方法配置 
 

/**

   * 注册DruidServlet 
 

*

   * @return 
 

*/

   @Bean 
 

   public ServletRegistrationBean druidServletRegistrationBean() 
 

{

   ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(); 
 

   servletRegistrationBean.setServlet(new StatViewServlet()); 
 

   servletRegistrationBean.addUrlMappings("/druid/*"); 
 

   return servletRegistrationBean; 
 

}

/**

   * 注册DruidFilter拦截 
 

*

   * @return 
 

*/

   @Bean 
 

   public FilterRegistrationBean duridFilterRegistrationBean() 
 

{

   FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(); 
 

   filterRegistrationBean.setFilter(new WebStatFilter()); 
 

   Map<String, String> initParams = new HashMap<String, String>(); 
 

   //设置忽略请求 
 

   initParams.put("exclusions", "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*"); 
 

   filterRegistrationBean.setInitParameters(initParams); 
 

   filterRegistrationBean.addUrlPatterns("/*"); 
 

   return filterRegistrationBean; 
 

}

/**

   * 配置DataSource 
 

   * 这里的用户名密码是数据库的 
 

   * @return 
 

   * @throws SQLException 
 

*/

   @Bean 
 

   public DataSource druidDataSource() throws SQLException 
 

{

   DruidDataSource druidDataSource = new DruidDataSource(); 
 

 
   druidDataSource.setUsername("root"); 
 

 
   druidDataSource.setPassword("root"); 
 

 
   druidDataSource.setUrl("jdbc:mysql://localhost:3306/"); 
 

   druidDataSource.setMaxActive(100); 
 

   druidDataSource.setFilters("stat,wall"); 
 

   druidDataSource.setInitialSize(10); 
 

   return druidDataSource; 
 

}