package cn.junhui.springboot.config;
//注意自己包的位置
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;

/**
 * 
 * 自定義資料來源配置
 */
@Configuration
 

public class DruidConfig {

    @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() {
        //設定 登入路徑
        ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*
 
");
        Map<String, String> initParams = new HashMap<>();
        initParams.put("loginUsername", "root");
        //設定登入 賬號 密碼
        initParams.put("loginPassword", "root");
        initParams.put("allow", "");//允許誰登入
        initParams.put("deny", "");//拒絕誰登入

        bean.setInitParameters(initParams);
        return bean;
    }

    /*
    配置一個web監控的filter
     */
    @Bean
    public FilterRegistrationBean webStatFilter() {
        FilterRegistrationBean bean = new FilterRegistrationBean();
        bean.setFilter(new WebStatFilter());

        Map<String, String> initParms = new HashMap<>();
        //不攔截靜態資源
        initParms.put("excluisions", "*.js,*.css,/druid/*");
        bean.setUrlPatterns(Arrays.asList("/*"));//攔截所有請求
        return bean;
    }
}

spring:
# mysql資料庫連線資訊
  datasource:
    username: root
    password: root
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/cre
    type: com.alibaba.druid.pool.DruidDataSource

#   druid 資料來源其他配置
    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，去掉後監控介面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

***************************
APPLICATION FAILED TO START
***************************

Description:

Failed to bind properties under 'spring.datasource' to javax.sql.DataSource:

    Property: spring.datasource.filters
    Value: stat,wall,log4j
    Origin: class path resource [application.yml]:24:14
    Reason: org.apache.log4j.Logger

<dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>1.2.17</version>
</dependency>