Spring Boot 2整合Druid的两种方式

一、自定义整合Druid（非Starter方式）

适用于需要完全手动控制配置的场景

1. 添加依赖（pom.xml）

<dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.2.8</version> <!-- 使用最新版本 -->
</dependency>
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>

1. 创建配置类

@Configuration
public class DruidConfig {@Bean@ConfigurationProperties(prefix = "spring.datasource")public DataSource druidDataSource() {return new DruidDataSource();}// 配置监控服务器@Beanpublic ServletRegistrationBean<StatViewServlet> statViewServlet() {ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(new StatViewServlet(), "/druid/*");Map<String, String> initParams = new HashMap<>();initParams.put("loginUsername", "admin");  // 监控后台登录账号initParams.put("loginPassword", "admin123"); initParams.put("allow", "");  // 允许所有访问bean.setInitParameters(initParams);return bean;}// 配置过滤器@Beanpublic FilterRegistrationBean<WebStatFilter> webStatFilter() {FilterRegistrationBean<WebStatFilter> bean = new FilterRegistrationBean<>(new WebStatFilter());bean.addUrlPatterns("/*");bean.addInitParameter("exclusions", "*.js,*.css,/druid/*");return bean;}
}

1. application.yml配置

spring:datasource:url: jdbc:mysql://localhost:3306/testdbusername: rootpassword: root123driver-class-name: com.mysql.cj.jdbc.Drivertype: com.alibaba.druid.pool.DruidDataSource# 连接池配置initialSize: 5minIdle: 5maxActive: 20maxWait: 60000timeBetweenEvictionRunsMillis: 60000minEvictableIdleTimeMillis: 300000validationQuery: SELECT 1testWhileIdle: truetestOnBorrow: falsetestOnReturn: falsepoolPreparedStatements: truefilters: stat,wall

二、使用Starter整合Druid（推荐）

官方提供的简化方案，自动配置监控页面

1. 添加Starter依赖

<dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.2.8</version>
</dependency>

1. application.yml完整配置

spring:datasource:url: jdbc:mysql://localhost:3306/testdbusername: rootpassword: root123driver-class-name: com.mysql.cj.jdbc.Drivertype: com.alibaba.druid.pool.DruidDataSourcedruid:# 连接池配置initial-size: 5min-idle: 5max-active: 20max-wait: 60000# 监控配置stat-view-servlet:enabled: trueurl-pattern: /druid/*login-username: adminlogin-password: admin123reset-enable: falseweb-stat-filter:enabled: trueurl-pattern: /*exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"# 防火墙配置filter:wall:config:multi-statement-allow: true

三、关键功能验证

1. 监控界面访问：

   • 访问 http://localhost:8080/druid
   • 使用配置的用户名/密码登录

2. SQL监控：

   @RestController
   public class TestController {@Autowiredprivate JdbcTemplate jdbcTemplate;@GetMapping("/users")public List<Map<String, Object>> getUsers() {return jdbcTemplate.queryForList("SELECT * FROM user");}
   }
   

四、配置优化建议

1. 生产环境安全：

   druid:stat-view-servlet:allow: 192.168.1.100  # 限制访问IPdeny: 192.168.1.73
   

2. 性能调优参数：

   druid:max-wait: 1000validation-query: SELECT 1test-on-borrow: falsetest-on-return: falsetest-while-idle: true
   

3. 启用SQL防火墙：

   druid:filter:wall:enabled: trueconfig:drop-table-allow: false
   

注意：使用Starter方式时，监控页面默认路径为/druid/*，如需修改可在配置中调整url-pattern参数。两种方式都支持完整的连接池参数配置，但Starter方式简化了监控功能的集成。