SpringBoot整合阿里 Druid 数据源的实例详解

@Configuration
public class MyDataSourseConfig {
    @Bean
    @ConfigurationProperties("spring.datasource") // 属性与配置文件绑定
    public DataSource dataSource(){
        return new DruidDataSource();
    }
}

@Configuration
public class MyDataSourseConfig {
    @Bean
    public DataSource dataSource(){
        
        DruidDataSource druidDataSource = new DruidDataSource();
        druidDataSource.setUrl("jdbc:mysql://localhost:3306/practice"); // 设置数据源连接 url
        // ..... 设置其他属性 .....
        return druidDataSource;
    }
}

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/practice
    username: root
    password: 5201314love
    driver-class-name: com.mysql.jdbc.Driver

@Configuration
public class MyDataSourseConfig {
    @Bean
    @ConfigurationProperties("spring.datasource")
    public DataSource dataSource(){
        return new DruidDataSource();
    }

    // 配置 druid 监控页功能 —— 在容器中放一 Servlet
    @Bean
    public ServletRegistrationBean statViewServlet(){
        StatViewServlet statViewServlet = new StatViewServlet();
        ServletRegistrationBean<StatViewServlet> registrationBean = new ServletRegistrationBean<StatViewServlet>(statViewServlet, "/druid/*");
        return registrationBean;
    }
}

    @Bean
    @ConfigurationProperties("spring.datasource")
    public DataSource dataSource() throws SQLException {
        DruidDataSource druidDataSource = new DruidDataSource();
        // 加入监控功能 —— setFilters("stat");
        druidDataSource.setFilters("stat");
        return druidDataSource;
    }

    // 采集 web-jdbc 关联监控的数据
    @Bean
    public FilterRegistrationBean webstatFilter(){
        WebStatFilter webStatFilter = new WebStatFilter();

        FilterRegistrationBean<WebStatFilter> registrationBean = new FilterRegistrationBean<>(webStatFilter);
        registrationBean.setUrlPatterns(Arrays.asList("/*"));
        registrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
        return registrationBean;
    }

        // 加入监控功能
        druidDataSource.setFilters("stat, wall");

druidDataSource.setFilters("stat, wall");

spring:
  datasource:
    # ... 此处省略一堆其他配置....
    filters: stat,wall

    // 配置 druid 监控页功能 —— 在容器中放一 Servlet
    @Bean
    public ServletRegistrationBean statViewServlet(){
        StatViewServlet statViewServlet = new StatViewServlet();
        ServletRegistrationBean<StatViewServlet> registrationBean = new ServletRegistrationBean<StatViewServlet>(statViewServlet, "/druid/*");
        registrationBean.addInitParameter("loginUsername", "wanqing");
        registrationBean.addInitParameter("loginPassword", "520131");
        return registrationBean;
    }