SpringBoot中如何整合Druid数据源-创新互联
这篇文章主要介绍“SpringBoot中如何整合Druid数据源”，在日常操作中，相信很多人在SpringBoot中如何整合Druid数据源问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”SpringBoot中如何整合Druid数据源”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
1.数据库结构
2.项目结构
3.pom.xml文件
org.springframework.boot spring-boot-starter-jdbc mysql mysql-connector-java runtime com.alibaba druid 1.1.8 log4j log4j 1.2.17 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-maven-plugin
4.application.yml配置文件
spring: datasource: username: root password: wangqing url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai driver-class-name: com.mysql.jdbc.Driver type: com.alibaba.druid.pool.DruidDataSource # 数据源其他配置 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，去掉后监控界面sql无法统计，'wall'用于防火墙 filters: stat,wall,log4j maxPoolPreparedStatementPerConnectionSize: 20 useGlobalDataSourceStat: true connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500 # 合并多个DruidDataSource的监控数据 #useGlobalDataSourceStat: true mybatis: # 指定全局配置文件位置 #config-location: classpath:mybatis/mybatis-config.xml # 指定sql映射文件位置 mapper-locations: classpath:mapper/*.xml #如src/main/resources下的mappers文件下的TUserMapper.xml # schema: # - classpath:sql/department.sql #根据department.sql 的sql语句创建表 # - classpath:sql/employee.sql
5.创建一个DruidConfig的配置类，实例化Druid Datasource
package com.qingfeng.config;
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 javax.sql.DataSource;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
@Configuration
public class DruidConfig {
//指定加载appliction.yml文件里面的spring.datasource开头的
// DruidDataSource类里面的属性与appliction.yml文件里面的spring.datasource开头的对应映射
@ConfigurationProperties(prefix = "spring.datasource")
@Bean
public DataSource druid(){
return new DruidDataSource();
}
//配置Druid的监控
//1、配置一个管理后台的Servlet
@Bean
public ServletRegistrationBean statViewServlet(){
ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
Map initParams = new HashMap<>();
initParams.put("loginUsername","admin");
initParams.put("loginPassword","123456");
initParams.put("allow","");//默认就是允许所有访问
initParams.put("deny","");
bean.setInitParameters(initParams);
return bean;
}
//2、配置一个web监控的filter
@Bean
public FilterRegistrationBean webStatFilter(){
FilterRegistrationBean bean = new FilterRegistrationBean();
bean.setFilter(new WebStatFilter());
Map initParams = new HashMap<>();
initParams.put("exclusions","*.js,*.css,/druid/*");
bean.setInitParameters(initParams);
bean.setUrlPatterns(Arrays.asList("/*"));
return bean;
}
} 6.创建一个UserController类测试
package com.qingfeng.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import java.util.List;
import java.util.Map;
@Controller
public class UserController {
@Autowired
JdbcTemplate jdbcTemplate;
@ResponseBody
@GetMapping("/query")
public Map map(){
List> list = jdbcTemplate.queryForList("select * FROM user");
return list.get(0);
}
} 7.运行项目，通过浏览器访问 http://localhost:8080/query
8.我们DruidConfig类里配置的下面代码可以帮我们实现监控
//配置Druid的监控
//1、配置一个管理后台的Servlet
@Bean
public ServletRegistrationBean statViewServlet(){
ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
Map initParams = new HashMap<>();
initParams.put("loginUsername","admin");
initParams.put("loginPassword","123456");
initParams.put("allow","");//默认就是允许所有访问
initParams.put("deny","");
bean.setInitParameters(initParams);
return bean;
} 9.我们启动项目，打开网址：http://localhost:8080/druid/login.html 可以通过登录，查看druid数据源状态监控
我们上面设置的是用户名：admin 密码：123456
到此，关于“SpringBoot中如何整合Druid数据源”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注创新互联网站，小编会继续努力为大家带来更多实用的文章！
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