<dependency>
  <groupId>com.alibaba</groupId>
  <artifactId>druid</artifactId>
  <version>1.0.23</version>
</dependency>

package com.my.blog.website.config;
import com.alibaba.druid.filter.Filter;
import com.alibaba.druid.filter.logging.Slf4jLogFilter;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import com.github.pagehelper.PageHelper;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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 org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import javax.sql.DataSource;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
/**
 * cn.sparrowx.druid.conf
 *
 * @author bosong
 * @since 2018/6/11 15:30.
 */
@Configuration
public class DruidConfiguration {
    private static final Logger logger = LoggerFactory.getLogger(DruidConfiguration.class);
    private static final String DB_PREFIX = "spring.datasource";
    @Bean
    public ServletRegistrationBean druidServlet() {
        logger.info("init Druid Servlet Configuration ");
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        // IP白名单
        servletRegistrationBean.addInitParameter("allow", "");
        // IP黑名单(共同存在时，deny优先于allow)
        servletRegistrationBean.addInitParameter("deny", "");
        //控制台管理用户
        servletRegistrationBean.addInitParameter("loginUsername", "bosong");
        servletRegistrationBean.addInitParameter("loginPassword", "qwe13579QWE");
        //是否能够重置数据 禁用HTML页面上的“Reset All”功能
        servletRegistrationBean.addInitParameter("resetEnable", "true");
        return servletRegistrationBean;
    }
    @Bean
    public FilterRegistrationBean filterRegistrationBean() {
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
        filterRegistrationBean.addUrlPatterns("/*");
        filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
        return filterRegistrationBean;
    }
    List<Filter> list=new ArrayList<>();
    @Bean
    Slf4jLogFilter logfilter(){
        Slf4jLogFilter slf4jLogFilter=new Slf4jLogFilter();
        slf4jLogFilter.setConnectionLogEnabled(false);
        slf4jLogFilter.setStatementLogEnabled(false);
        slf4jLogFilter.setStatementExecutableSqlLogEnable(true);
        slf4jLogFilter.setResultSetLogEnabled(true);
        list.add(slf4jLogFilter);
        return slf4jLogFilter;
    }
    //解决 spring.datasource.filters=stat,wall,log4j 无法正常注册进去
    @ConfigurationProperties(prefix = DB_PREFIX)
    class IDataSourceProperties {
        private String url;
        private String username;
        private String password;
        private String filters;
        private String connectionProperties;
        @Bean     //声明其为Bean实例
        @Primary  //在同样的DataSource中，首先使用被标注的DataSource
        public DataSource dataSource() {
            DruidDataSource datasource = new DruidDataSource();
            datasource.setName("blog-onlie");
            datasource.setUrl(url);
            datasource.setUsername(username);
            datasource.setPassword(password);
            //configuration
            datasource.setInitialSize(1);
            datasource.setMinIdle(1);
            datasource.setMaxActive(20);
            datasource.setMaxWait(60000);
            datasource.setTimeBetweenLogStatsMillis(300000);
            datasource.setTimeBetweenEvictionRunsMillis(60000);
            datasource.setMinEvictableIdleTimeMillis(300000);
            datasource.setTestWhileIdle(true);
            datasource.setTestOnBorrow(false);
            datasource.setTestOnReturn(false);
            datasource.setPoolPreparedStatements(true);
            datasource.setMaxPoolPreparedStatementPerConnectionSize(20);
            datasource.setAsyncInit(true);
            datasource.setProxyFilters(list);
            datasource.setValidationQuery("select 'x'");
            try {
                datasource.setFilters(filters);
            } catch (SQLException e) {
                System.err.println("druid configuration initialization filter: " + e);
            }
            datasource.setConnectionProperties(connectionProperties);
            return datasource;
        }
        @Bean(name = "sqlSessionFactory")
        @Primary
        public SqlSessionFactory sqlSessionFactoryBean() {
            SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
            bean.setDataSource(dataSource());
            bean.setTypeAliasesPackage("com.my.blog.website.model.Vo");
            // 分页插件
            PageHelper pageHelper = new PageHelper();
            Properties properties = new Properties();
            properties.setProperty("reasonable", "true");
            properties.setProperty("supportMethodsArguments", "true");
            properties.setProperty("returnPageInfo", "check");
            properties.setProperty("params", "count=countSql");
            pageHelper.setProperties(properties);
            // 添加插件
            bean.setPlugins(new Interceptor[] {pageHelper});
            // 添加XML目录
            ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
            try {
                bean.setMapperLocations(resolver.getResources("classpath:mapper/*.xml"));
                return bean.getObject();
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
        @Bean
        @Primary
        public SqlSessionTemplate sqlSessionTemplate(
                SqlSessionFactory sqlSessionFactory) {
            return new SqlSessionTemplate(sqlSessionFactory);
        }
        @Bean
        @Primary
        public PlatformTransactionManager annotationDrivenTransactionManager() {
            return new DataSourceTransactionManager(dataSource());
        }
        public String getUrl() {
            return url;
        }
        public void setUrl(String url) {
            this.url = url;
        }
        public String getUsername() {
            return username;
        }
        public void setUsername(String username) {
            this.username = username;
        }
        public String getPassword() {
            return password;
        }
        public void setPassword(String password) {
            this.password = password;
        }
        public String getFilters() {
            return filters;
        }
        public void setFilters(String filters) {
            this.filters = filters;
        }
        public String getConnectionProperties() {
            return connectionProperties;
        }
        public void setConnectionProperties(String connectionProperties) {
            this.connectionProperties = connectionProperties;
        }
    }
}

spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    url: jdbc:mysql://xxxxxx:3306/teaching?useSSL=false
    username: root
    password: SK7q1NJTgWERV924WLnm7IcxBHjDNJ81UMo10EuFzjcXwblNte68QyxAHpoaV57KHRob7Rle+syYyvaGE2Fa7Q==
    # 下面为连接池的补充设置，应用到上面所有数据源中
    # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
    filters: config,stat,wall,slf4j
    # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000;config.decrypt=true;config.decrypt.key=MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAItGtxZCgxe9j3hEBJtW46xjlm6doeYY0/VvOEqcs3VQG5pcA3Tyv0SjjMXAq0zOQdI6nGMXUhtqrMG41Yk7RgMCAwEAAQ==
    # mybatis配置
mybatis:
  mapper-locations: classpath*:/mapper/*Mapper.xml
server:
  port: 10086
logging:
  level: debug
  file: logs/spring.log