SpringBoot-Druid

SpringBoot

1.POM添加依赖

<!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>${druid.version}</version>
</dependency>

2.数据源配置

spring:
  datasource:
    #连接池基本配置
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/springbootdb?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
    username: root
    password: root
    type: com.alibaba.druid.pool.DruidDataSource
    # 数据库连接池补充配置
    minIdle: 5
    maxActive: 20
    initialSize: 5
    timeBetweenEvictionRunsMillis: 3000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 'ZTM' FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    # 打开PSCache，并且指定每个连接上PSCache的大小
    poolPreparedStatements: true
    maxPoolPreparedStatementPerConnectionSize: 20
    # 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: stat,wall,log4j
    # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
    # 合并多个DruidDataSource的监控数据
    useGlobalDataSourceStat: true

type须配置成DruidDataSource,其它的可以不用配置(上面已有说明)

3.数据源配置类

package cn.pheker.springbootdemo.config;
import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import javax.sql.DataSource;
/**
 * <pre>
 * author    cn.pheker
 * date      2018/3/7  9:03
 * email     1176479642@qq.com
 * desc      配置Druid数据源,并全之优先被使用
 *
 * </pre>
 */
@Configuration
public class DruidDataSourceConfiguration {
    //相关的参数会自动赋值到datasource里
    @Bean
    @ConfigurationProperties(prefix = "spring.datasource")
    @Primary
    public DataSource dataSource(){
        return new DruidDataSource();
    }
}

4.过滤器类

package cn.pheker.springbootdemo.filter;
import com.alibaba.druid.support.http.WebStatFilter;
import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;
/**
 * <pre>
 * author    cn.pheker
 * date      2018/3/7  9:19
 * email     1176479642@qq.com
 * desc      Druid过滤器
 *
 * </pre>
 */
@WebFilter(filterName = "druidStatFilter",urlPatterns = "/*",
initParams = {
        // 忽略资源
        @WebInitParam(name = "excusions",value = "/druid/*,*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico")
})
public class DruidStatFilter extends WebStatFilter {
}

5.Servelet类

package cn.pheker.springbootdemo.filter;
import com.alibaba.druid.support.http.StatViewServlet;
import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;
/**
 * <pre>
 * author    cn.pheker
 * date      2018/3/7  9:25
 * email     1176479642@qq.com
 * desc      Druid监控界面Servlet
 *
 * </pre>
 */
@WebServlet(urlPatterns = "/druid/*",
    initParams = {
            @WebInitParam(name = "allow",value = "127.0.0.1,10.96.74.187"),// IP白名单 (没有配置或者为空，则允许所有访问)
            @WebInitParam(name="deny",value="192.168.16.111"),// IP黑名单 (存在共同时，deny优先于allow)
            @WebInitParam(name="loginUsername",value="admin"),// 用户名
            @WebInitParam(name="loginPassword",value="admin"),// 密码
            @WebInitParam(name="resetEnable",value="false")// 禁用HTML页面上的“Reset All”功能
    }
)
public class DruidStatViewServlet extends StatViewServlet {
}

6.启动类添加扫描servlet注解

@ServletComponentScan //扫描Servlet

7.访问页面

http://localhost:8080/druid[/login.html]
用户名和密码就是servlet中配置的admin/admin

8.相关链接

1. 新手注解配置springboot+druid
2. Druid常见问题
3. Spring Boot 使用 Druid 和监控配置