springboot用yml配置jdbc数据源

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最新推荐文章于 2025-07-04 09:46:26 发布

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分类专栏：项目实战

原文链接：https://blog.youkuaiyun.com/justlpf/article/details/80728529

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本文详细介绍了如何在Spring Boot项目中配置和使用Druid数据源，包括配置Druid数据源参数、创建配置类、以及如何通过JdbcTemplate进行数据库操作。

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要让那些黄色配置生效，要自己写一个配置类。

https://blog.youkuaiyun.com/justlpf/article/details/80728529详细解释

代码：

application.yml:

spring:
  datasource:
    username: root
    password: 123456
    url: jdbc:mysql://localhost:3306/lianxiTwo
    driver-class-name: com.mysql.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource

    initiaSize: 5
    minIdle: 5
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECE 1 FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true

    filters: stat,wall,log4j
    maxPoolPrepareStatementPerConnectionSize: 20
    useGlobalDataSourceStat: true
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

controller:

package com.lianxitwo.springbootjdbctwo.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 Getjdbc {

    @Autowired
    JdbcTemplate jdbcTemplate;

   @ResponseBody
   @GetMapping("query")
    public Map<String, Object> map(){
        List<Map<String, Object>> list = jdbcTemplate.queryForList("select * from classOne");
         return list.get(0);
    }


}

配置文件：

package com.lianxitwo.springbootjdbctwo.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.lang.reflect.Array;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

@Configuration
public class DruidConfig {

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

    @Bean
    public ServletRegistrationBean statViewServlet(){
       ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        Map<String, String> map = new HashMap<>();
        map.put("loginUsername","admin");
        map.put("loginPassword","123456");
        map.put("allow","");
        map.put("deny","14.153.78.101");
          bean.setInitParameters(map);
          return bean;
    }

    @Bean
    public FilterRegistrationBean webStatFilter(){
        FilterRegistrationBean 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;
    }


}