依赖

<dependency>
	<groupId>com.alibaba</groupId>
	<artifactId>druid</artifactId>
	<version>1.1.21</version>
</dependency>
<dependency>
	<groupId>log4j</groupId>
	<artifactId>log4j</artifactId>
	<version>1.2.17</version>
</dependency>
<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>

配置属性

spring:
  datasource:
    username: root
    password: 123456
    url: jdbc:mysql://localhost:3306/mybatis?useUnicdoe=true&characterEncoding=utf-8&serverTimezone=UTC
    driver-class-name: com.mysql.jdbc.Driver
    #SpringBoot默认是不注入这些的，需要自己绑定
    #druid数据源专有配置
    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

    #配置监控统计拦截的filters，stat：监控统计、log4j：日志记录、wall：防御sql注入
    #如果允许报错，java.lang.ClassNotFoundException: org.apache.Log4j.Properity
    #则导入log4j 依赖就行
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    useGlobalDataSourceStat: true
    connectionoProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500

使用

@Configuration

public class DruidConfig {
    @Bean
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource druidDataSource(){
        return new DruidDataSource();
    }
    @Bean
    //没有web.xml，springboot内置了servlet容器：ServletRegistrationBean
    public ServletRegistrationBean servletRegistrationBean(){
        ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        HashMap<String ,String> map = new HashMap<>();
        map.put("loginUsername","admin");
        map.put("loginPassword","123456");
        //允许访问,为空则所有人都可
        map.put("allow","");
        //禁止访问
        map.put("name","192.11.11.11");
        bean.setInitParameters(map);
        return bean;
    }
    //filter
    public FilterRegistrationBean filterRegistrationBean(){
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
        filterRegistrationBean.setFilter(new WebStatFilter());
        HashMap<String ,String> map = new HashMap<>();
        //以下不进行统计
        map.put("exclusions","*.js,*.css,/druid/**");
        filterRegistrationBean.setInitParameters(map);
        return filterRegistrationBean;

    }

}