SpringBoot Druid整合，SpringBoot 集成Druid
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©Copyright 蕃薯耀 2018年4月3日
http://fanshuyao.iteye.com/
一、SpringBoot引入Druid的依赖包
mysql mysql-connector-java runtime com.alibaba druid 1.1.9
二、设置配置文件application.properties
spring.datasource.url=jdbc:mysql://192.168.1.166:3306/study spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.username=root spring.datasource.password=root spring.datasource.type=com.alibaba.druid.pool.DruidDataSource #spring.datasource.schema= #数据源其他配置，需要增加Druid的配置类（不然不生效） #配置见：com.lqy.springboot.datasource.druid.DruidConfig spring.datasource.initialSize=5 spring.datasource.minIdle=5 spring.datasource.maxActive=20 spring.datasource.maxWait=60000 spring.datasource.timeBetweenEvictionRunsMillis=60000 spring.datasource.minEvictableIdleTimeMillis=300000 spring.datasource.validationQuery=SELECT 1 FROM DUAL spring.datasource.testWhileIdle=true spring.datasource.testOnBorrow=false spring.datasource.testOnReturn=false spring.datasource.poolPreparedStatements=true #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 spring.datasource.filters=stat,wall,log4j spring.datasource.maxPoolPreparedStatementPerConnectionSize=20 spring.datasource.useGlobalDataSourceStat=true spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
三、增加Druid自定义配置类
为什么要增加呢？
因为SpringBoot本身提供的配置只是部分的数据库连接配置，很多Druid需要的属性配置是没有的，如：
spring.datasource.initialSize
这个属性，SpringBoot是没有的，只有Druid才有，所以需要增加相应的配置类，自动注入。
DruidConfig 类：
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import javax.sql.DataSource;
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 com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
/**
* 导入druid数据源，扩展相关的配置属性
*
*/
@Configuration
public class DruidConfig {
/**
* 配置Druid的属性，和DataSource进行绑定，前缀设置为：spring.datasource
* 不配置的话，很多初始化的属性是没有绑定的
* @return
*/
@Bean
@ConfigurationProperties(prefix="spring.datasource")
public DataSource druid() {
return new DruidDataSource();
}
/**
* 配置druid监控
* 配置一个管理后台的servlet
* 访问地址：http://localhost:8080/druid/
* @return
*/
@Bean
public ServletRegistrationBean statViewServlet() {
ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
Map initParameters = new HashMap();
initParameters.put("loginUsername", "admin");//属性见：com.alibaba.druid.support.http.ResourceServlet
initParameters.put("loginPassword", "123456");
initParameters.put("allow", "");//默认允许所有
initParameters.put("deny", "");
bean.setInitParameters(initParameters);
return bean;
}
/**
* 配置一个web监控的filter
* @return
*/
@Bean
public FilterRegistrationBean webStatFilter() {
FilterRegistrationBean filterBean = new FilterRegistrationBean();
filterBean.setFilter(new WebStatFilter());
filterBean.setUrlPatterns(Arrays.asList("/*"));
Map initParameters = new HashMap();
initParameters.put("exclusions", "*.js,*.css,/druid/*");//属性见：com.alibaba.druid.support.http.WebStatFilter
filterBean.setInitParameters(initParameters);
return filterBean;
}
}
四、启动项目，测试数据源连接：
import java.sql.Connection;
import java.sql.SQLException;
import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class DataSourceController {
@Autowired
private DataSource dataSource;
@RequestMapping("/dataSource")
public String dataSource() {
try {
System.out.println("dataSource = "+dataSource);
Connection conn = dataSource.getConnection();
System.out.println("conn = "+conn);
return "success";
} catch (SQLException e) {
e.printStackTrace();
}
return "end.";
}
}
五、查看Druid的监控
浏览器打开：http://localhost:8080/druid
登录的账号密码在DruidConfig类配置有
（如果你觉得文章对你有帮助，欢迎捐赠，^_^，谢谢！）
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©Copyright 蕃薯耀 2018年4月3日
http://fanshuyao.iteye.com/