intellijidea2018利用Springboot整合阿里巴巴druid数据源

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第一步: 创建一个Springboot工程, 创建步骤请移步"https://blog.csdn.net/ip_JL/article/details/82083545"

第二步: 配置maven的依赖包

<dependency>
   <groupId>com.alibaba</groupId>
   <artifactId>druid</artifactId>
   <version>1.0.9</version>
</dependency>
<dependency>
   <groupId>log4j</groupId>
   <artifactId>log4j</artifactId>
   <version>1.2.15</version>
</dependency>

引包之后在application.yaml配置文件中配置一些数据源信息:

spring:
  datasource:
    username: root
    password: root
    url: jdbc:mysql://localhost:3306/boot_demo
    driver-class-name: com.mysql.jdbc.Driver
    type: com.alibaba.druid.pool.xa.DruidXADataSource
    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
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    useGlobalDataSourceStat: true
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500

第三步: 由于是外部的数据源, 需要创建数据源的注册类

package cn.tx.springboot;

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;

@Configuration
public class DruidConfig {

    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DruidDataSource getDruidDS(){
        return new DruidDataSource();
    }
}

测试一下:

package cn.tx.springboot;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import javax.sql.DataSource;

@RunWith(SpringRunner.class)
@SpringBootTest
public class TxDemo10ApplicationTests {

    @Autowired
    DataSource dataSource;

    @Test
    public void contextLoads() {
        System.out.println(dataSource);
    }
}

打断点查看:

成功

第四步: 配置druid的运行期监控

同样需要在注册类中进行相应的配置:

package cn.tx.springboot;

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

@Configuration
public class DruidConfig {

    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DruidDataSource getDruidDS(){
        return new DruidDataSource();
    }

    @Bean
    public ServletRegistrationBean statViewServlet(){
        ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(),
                "/druid/*");
        Map<String,String> initParams = new HashMap<>();
        initParams.put("loginUsername","root");
        initParams.put("loginPassword","root");
        initParams.put("allow","");//默认就是允许所有访问
        initParams.put("deny","192.168.15.21");
        bean.setInitParameters(initParams);
        return bean;
    }

    //2、配置一个web监控的filter
    @Bean
    public FilterRegistrationBean webStatFilter(){
        FilterRegistrationBean bean;
        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;
    }
}

启动Springboot后打开网页"http://localhost:8080/druid", 账号密码都是root

至此配置阿里巴巴的druid数据源完成