介绍
在开发过程中,当我们调试一个程序,我们可能希望查看一个SQL语句的执行时间,我们也可能想去看一个请求的请求响应时间。如果你使用的数据库连接池是Druid。那么你就不需要在代码中,嵌入大量的System.out.print(System.currentTimeMillis())
或者logger.debug()
了,而是直接配置使用Druid提供的监控平台。
POM依赖
<!-- Druid连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.9</version>
</dependency>
配置类
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;
@Configuration
public class DruidConfig {
@Bean
public ServletRegistrationBean druidServlet() {// 主要实现web监控的配置处理
ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(
new StatViewServlet(), "/druid/*");//表示进行druid监控的配置处理操作
//servletRegistrationBean.addInitParameter("allow", "127.0.0.1,192.168.202.233");//白名单
//servletRegistrationBean.addInitParameter("deny", "192.168.202.234");//黑名单
servletRegistrationBean.addInitParameter("loginUsername", "admin");//用户名
servletRegistrationBean.addInitParameter("loginPassword", "123456");//密码
servletRegistrationBean.addInitParameter("resetEnable", "false");//是否可以重置数据源
return servletRegistrationBean;
}
@Bean //监控
public FilterRegistrationBean filterRegistrationBean() {
FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
filterRegistrationBean.setFilter(new WebStatFilter());
filterRegistrationBean.addUrlPatterns("/*");//所有请求进行监控处理
filterRegistrationBean.addInitParameter("exclusions", "/static/*,*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");//排除静态资源访问以及德鲁伊本身接口
return filterRegistrationBean;
}
@Bean
@ConfigurationProperties(prefix = "spring.datasource.druid")
public DataSource druidDataSource() {
return new DruidDataSource();
}
}