spring boot -- druid 傻瓜配置詳解

druid 傻瓜配置詳解

• 轉載：Druid介紹及入門
  [https://blog.csdn.net/qq_27466827/article/details/82777112]

1.pom添加依賴

		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
			<version>1.1.5</version>
		</dependency>

2.yml文件配置

spring:
  datasource:
#   數據源基本配置
    username: root
    password: 123456
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/user
    type: com.alibaba.druid.pool.DruidDataSource
#   數據源其他配置
    initialSize: 5
    minIdle: 5
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1 FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true
#   配置監控統計攔截的filters，去掉後監控界面sql無法統計，'wall'用於防火牆  
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    useGlobalDataSourceStat: true  
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500

3.druid 類(DbDruidConfig)配置

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;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

/**
 * Druid監控配置
 */
@Configuration
public class DbDruidConfig
{
    //yml數據源配置
    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DataSource druid()
    {
        return new DruidDataSource();
    }
    
    // 配置Druid的監控
    // 1、配置一個管理後臺的Servlet
    @Bean
    public ServletRegistrationBean statViewServlet()
    {
        ServletRegistrationBean bean =
            new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        Map<String, String> initParams = new HashMap<>();
        
        initParams.put("loginUsername", "admin");//druid登陸名及密碼
        initParams.put("loginPassword", "123456");
        initParams.put("allow", "");// 默認就是允許所有訪問
        initParams.put("deny", "192.168.111.11");// 拒絕的IP訪問
        
        bean.setInitParameters(initParams);
        return bean;
    }
    
    // 2、配置一個web監控的filter
    @Bean
    public FilterRegistrationBean webStatFilter()
    {
        FilterRegistrationBean bean = new FilterRegistrationBean();
        bean.setFilter(new WebStatFilter());
        
        Map<String, String> initParams = new HashMap<>();
        initParams.put("exclusions", "*.js,*.css,/druid/*");
        bean.setInitParameters(initParams);
        bean.setUrlPatterns(Arrays.asList("/*"));
        
        return bean;
    }
}

4.啓動項目打開網址[http://localhost:8080/druid]

• 出現這個頁面表示成功了，出入上面配置的用戶名及密碼

• 調用查詢數據庫接口後，頁面會顯示出接口中調用數據庫的語句及相關信息
  

至此druid 配置結束 ^ _ ^