精通SpringBoot——第六篇：整合druid监控SQL执行
第一二篇：2018/8/23
第三篇：2018/9/7
第四篇：2018/9/10
第五篇：2018/9/14
咳咳，今天我们做些简单而实用的东西，使用springboot 整合alibaba的driud数据库监控工具。
alibaba已经提供了spring-boot-starter的jar包了。先看pom.xml加个依赖~~ (druid.version自己找哈) 。
com.alibaba
druid-spring-boot-starter
${druid.version}
配置信息是少不了滴~~ # 开发环境下配置 spring: datasource: druid: url: jdbc:mysql://localhost:3306/test?allowMultiQueries:true&characterEncoding:UTF-8&zeroDateTimeBehavior:convertToNull username: root password: 123456 driver-class-name: com.mysql.jdbc.Driver # 连接池配置 initial-size: 1 max-active: 20 min-idle: 1 max-wait: 10000 pool-prepared-statements: true max-open-prepared-statements: 20 validation-query: SELECT 1 FROM DUAL validation-query-timeout: 5000 test-on-borrow: false test-on-return: false test-while-idle: true time-between-eviction-runs-millis: 60000 min-evictable-idle-time-millis: 30000 max-evictable-idle-time-millis: 60000 removeAbandoned: true removeAbandonedTimeout: 1800 connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000 max-pool-prepared-statement-per-connection-size: 20 filters: stat,wall #filters: #配置多个英文逗号分隔(统计，sql注入，log4j过滤) type: com.alibaba.druid.pool.DruidDataSource 接下来是重点，重点，重点......@Configuration注解的配置类 @Configuration public class DruidConfig { private static final Logger logger = LoggerFactory.getLogger(DruidConfig.class); @Autowired private AppConfig appConfig; @Value("${spring.datasource.druid.url}") private String dbUrl; @Value("${spring.datasource.druid.username}") private String username; @Value("${spring.datasource.druid.password}") private String password; @Value("${spring.datasource.druid.driver-class-name}") private String driverClassName; @Value("${spring.datasource.druid.initial-size}") private int initialSize; @Value("${spring.datasource.druid.min-idle}") private int minIdle; @Value("${spring.datasource.druid.max-active}") private int maxActive; @Value("${spring.datasource.druid.max-wait}") private int maxWait; @Value("${spring.datasource.druid.time-between-eviction-runs-millis}") private int timeBetweenEvictionRunsMillis; @Value("${spring.datasource.druid.min-evictable-idle-time-millis}") private int minEvictableIdleTimeMillis; @Value("${spring.datasource.druid.validation-query}") private String validationQuery; @Value("${spring.datasource.druid.test-while-idle}") private boolean testWhileIdle; @Value("${spring.datasource.druid.test-on-borrow}") private boolean testOnBorrow; @Value("${spring.datasource.druid.test-on-return}") private boolean testOnReturn; @Value("${spring.datasource.druid.pool-prepared-statements}") private boolean poolPreparedStatements; @Value("${spring.datasource.druid.max-pool-prepared-statement-per-connection-size}") private int maxPoolPreparedStatementPerConnectionSize; @Value("${spring.datasource.druid.filters}") private String filters; @Value("{spring.datasource.druid.connection-properties}") private String connectionProperties; @Bean //声明其为Bean实例 @Primary //在同样的DataSource中，首先使用被标注的DataSource public DataSource dataSource() { DruidDataSource datasource = new DruidDataSource(); datasource.setUrl(dbUrl); datasource.setUsername(username); datasource.setPassword(password); datasource.setDriverClassName(driverClassName); //configuration datasource.setInitialSize(initialSize); datasource.setMinIdle(minIdle); datasource.setMaxActive(maxActive); datasource.setMaxWait(maxWait); datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis); datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis); datasource.setValidationQuery(validationQuery); datasource.setTestWhileIdle(testWhileIdle); datasource.setTestOnBorrow(testOnBorrow); datasource.setTestOnReturn(testOnReturn); datasource.setPoolPreparedStatements(poolPreparedStatements); datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize); try { datasource.setFilters(filters); } catch (Exception e) { logger.error("druid configuration initialization filter", e); } datasource.setConnectionProperties(connectionProperties); return datasource; } @Bean public ServletRegistrationBean druidServlet() { //logger.info("init Druid Servlet Configuration "); ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(); servletRegistrationBean.setServlet(new StatViewServlet()); servletRegistrationBean.addUrlMappings("/druid/*"); Map
initParameters = new HashMap<>(); initParameters.put("loginUsername", appConfig.getDruidUserName());// 用户名 initParameters.put("loginPassword", appConfig.getDruidPassword());// 密码 initParameters.put("resetEnable", appConfig.getDruidResetAll());// 禁用HTML页面上的“Reset All”功能 initParameters.put("allow", ""); // IP白名单 (没有配置或者为空，则允许所有访问) //initParameters.put("deny", "192.168.20.38");// IP黑名单 (存在共同时，deny优先于allow) servletRegistrationBean.setInitParameters(initParameters); return servletRegistrationBean; } @Bean public FilterRegistrationBean druidWebStatViewFilter() { FilterRegistrationBean registrationBean = new FilterRegistrationBean(new WebStatFilter()); registrationBean.addInitParameter("urlPatterns", "/*"); registrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*"); return registrationBean; } } 这里解释说下，AppConfig类是我自定义的一些配置项目，和集成druid没有关系噢。 到这就可以写个连接数据库查询测试下druid了，在地址栏输入localhost:8080/druid就能访问druid的登录页面了。 