<!-- https://mvnrepository.com/artifact/com.alibaba/druid-spring-boot-starter -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.2.6</version>
        </dependency>

spring:
  datasource:
      url: jdbc:mysql://192.168.199.100:33306/auto?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&useSSL=false&zeroDateTimeBehavior=convertToNull
      username: root
      password: 123456
      driver-class-name: com.mysql.cj.jdbc.Driver
      type: com.alibaba.druid.pool.DruidDataSource
      initial-size: 1
      min-idle: 1
      max-active: 10
      max-wait: 60000
      #配置間隔多久才進(jìn)行一次檢測(cè)，檢測(cè)需要關(guān)閉的空閑連接，單位是毫秒
      time-between-eviction-runs-millis: 60000
      #配置一個(gè)連接在池中最小生存的時(shí)間，單位是毫秒
      min-evictable-idle-time-millis: 30000
      durid:
      #配置監(jiān)控統(tǒng)計(jì)攔截的filters，stat:監(jiān)控統(tǒng)計(jì)、log4j：日志記錄、wall：防御sql注入
        filters: wall,stat,log4j

@SpringBootConfiguration
public class DruidConfig {
    
    //將自定義的 Druid數(shù)據(jù)源添加到容器中，不再讓 Spring Boot 自動(dòng)創(chuàng)建
    //綁定全局配置文件中的 druid 數(shù)據(jù)源屬性到 com.alibaba.druid.pool.DruidDataSource從而讓它們生效
    //@ConfigurationProperties(prefix = "spring.datasource")：作用就是將 全局配置文件中
    //前綴為 spring.datasource的屬性值注入到 com.alibaba.druid.pool.DruidDataSource 的同名參數(shù)中
    @Bean
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource druidDataSource() {
        return new DruidDataSource();
    }
    //配置 Druid 監(jiān)控管理后臺(tái)的Servlet；
    //內(nèi)置 Servlet 容器時(shí)沒有web.xml文件，所以使用 Spring Boot 的注冊(cè) Servlet 方式
    @Bean
    public ServletRegistrationBean registrationBean() {
        ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(new StatViewServlet(), "/druid/*");
        Map<String, String> initParameters = new HashMap<>();
        initParameters.put("loginUsername", "admin");
        initParameters.put("loginPassword", "12345");
        bean.setInitParameters(initParameters);
        return bean;
    }
    //配置 Druid 監(jiān)控 之  web 監(jiān)控的 filter
    //WebStatFilter：用于配置Web和Druid數(shù)據(jù)源之間的管理關(guān)聯(lián)監(jiān)控統(tǒng)計(jì)
    @Bean
    public FilterRegistrationBean webStatFilter() {
        FilterRegistrationBean bean = new FilterRegistrationBean();
        bean.setFilter(new WebStatFilter());
        //exclusions：設(shè)置哪些請(qǐng)求進(jìn)行過濾排除掉，從而不進(jìn)行統(tǒng)計(jì)
        Map<String, String> initParams = new HashMap<>();
        initParams.put("exclusions", "*.js,*.css,/druid/*,/jdbc/*");
        bean.setInitParameters(initParams);
        //"/*" 表示過濾所有請(qǐng)求
        bean.setUrlPatterns(Arrays.asList("/*"));
        return bean;
    }
    /**
     * 去除Druid監(jiān)控頁面的廣告
     */
    @Bean
    public FilterRegistrationBean removeDruidAdFilter() throws IOException {
        String text = Utils.readFromResource("support/http/resources/js/common.js");
        final String newJs = text.replace("this.buildFooter();", "");
        // 新建一個(gè)過濾器注冊(cè)器對(duì)象
        FilterRegistrationBean<Filter> registration = new FilterRegistrationBean<>();
        // 注冊(cè)common.js文件的過濾器
        registration.addUrlPatterns("/druid/js/common.js");
        // 添加一個(gè)匿名的過濾器對(duì)象,并把改造過的common.js文件內(nèi)容寫入到瀏覽器
        registration.setFilter((servletRequest, servletResponse, filterChain) -> {
            // 重置緩沖區(qū)，響應(yīng)頭不會(huì)被重置
            servletResponse.resetBuffer();
            // 把改造過的common.js文件內(nèi)容寫入到瀏覽器
            servletResponse.getWriter().write(newJs);
        });
        return registration;
    }
}

@SpringBootTest(classes = AutoApplication.class)
public class DuridTest {
    //DI注入數(shù)據(jù)源
    @Autowired
    private DataSource dataSource;
    @Test
    public void contextLoads() throws SQLException {
        //看一下默認(rèn)數(shù)據(jù)源
        System.out.println(dataSource.getClass());
        //獲得連接
        Connection connection = dataSource.getConnection();
        System.out.println(connection);
        DruidDataSource druidDataSource = (DruidDataSource) dataSource;
        System.out.println("druidDataSource 數(shù)據(jù)源最大連接數(shù)：" + druidDataSource.getMaxActive());
        System.out.println("druidDataSource 數(shù)據(jù)源初始化連接數(shù)：" + druidDataSource.getInitialSize());
        //關(guān)閉連接
        connection.close();
    }
}