com.microsoft.sqlserver sqljdbc4 4.0
datasource: druid: slave: # 从数据源开关/默认关闭 enabled: true type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.microsoft.sqlserver.jdbc.SQLServerDriver url: jdbc:sqlserver://192.168.0.1:1433;database=test;SelectMethod=cursor; username: test password: 12345 master: type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.mysql.cj.jdbc.Driver url: jdbc:mysql://192.168.0.1:3306/test?rewriteBatchedStatements=true&useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&useSSL=false&autoReconnect=true&failOverReadOnly=false&serverTimezone=GMT%2B8 username: test password: 123456 initial-size: 10 min-idle: 10 max-active: 200 max-wait: 60000 time-between-eviction-runs-millis: 300000 # 配置一个连接在池中最小生存的时间,单位是毫秒 min-evictable-idle-time-millis: 300000 # 配置一个连接在池中最大生存的时间,单位是毫秒 max-evictable-idle-time-millis: 900000 validation-query: SELECT 'x' test-while-idle: true test-on-borrow: false test-on-return: false pool-prepared-statements: true max-pool-prepared-statement-per-connection-size: 20 filters: stat
@Configuration public class DruidProperties { @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("${spring.datasource.druid.max-evictable-idle-time-millis}") private int maxEvictableIdleTimeMillis; @Value("${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; public DruidDataSource dataSource(DruidDataSource datasource) { /** 配置初始化大小、最小、最大 */ datasource.setInitialSize(initialSize); datasource.setMaxActive(maxActive); datasource.setMinIdle(minIdle); /** 配置获取连接等待超时的时间 */ datasource.setMaxWait(maxWait); /** 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 */ datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis); /** 配置一个连接在池中最小、最大生存的时间,单位是毫秒 */ datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis); datasource.setMaxEvictableIdleTimeMillis(maxEvictableIdleTimeMillis); /** * 用来检测连接是否有效的sql,要求是一个查询语句,常用select 'x'。如果validationQuery为null,testOnBorrow、testOnReturn、testWhileIdle都不会起作用。 */ datasource.setValidationQuery(validationQuery); /** 建议配置为true,不影响性能,并且保证安全性。申请连接的时候检测,如果空闲时间大于timeBetweenEvictionRunsMillis,执行validationQuery检测连接是否有效。 */ datasource.setTestWhileIdle(testWhileIdle); /** 申请连接时执行validationQuery检测连接是否有效,做了这个配置会降低性能。 */ datasource.setTestOnBorrow(testOnBorrow); /** 归还连接时执行validationQuery检测连接是否有效,做了这个配置会降低性能。 */ datasource.setTestOnReturn(testOnReturn); return datasource; } }
@Configuration public class DruidConfig { @Bean @ConfigurationProperties("spring.datasource.druid.master") public DataSource masterDataSource(DruidProperties druidProperties) { DruidDataSource dataSource = DruidDataSourceBuilder.create().build(); return druidProperties.dataSource(dataSource); } @Bean @ConfigurationProperties("spring.datasource.druid.slave") @ConditionalOnProperty(prefix = "spring.datasource.druid.slave", name = "enabled", havingValue = "true") public DataSource slaveDataSource(DruidProperties druidProperties) { DruidDataSource dataSource = DruidDataSourceBuilder.create().build(); return druidProperties.dataSource(dataSource); } @Bean(name = "dynamicDataSource") @Primary public DynamicDataSource dataSource(DataSource masterDataSource) { Map
优先级:先方法,后类,如果方法覆盖了类上的数据源类型,以方法的为准,否则以类上的为准
@Target({ ElementType.METHOD, ElementType.TYPE }) @Retention(RetentionPolicy.RUNTIME) @Documented @Inherited public @interface DataSource { /** * 切换数据源名称 */ public DataSourceType value() default DataSourceType.MASTER; }
public enum DataSourceType { /** * 主库 */ MASTER, /** * 从库 */ SLAVE }