spring.datasource.pool-prepared-statements = # 最大缓存预编译语句的数量大小,当大于 0 时,pool-prepared-statements 自动触发修改为 true spring.datasource.max-pool-prepared-statement-per-connection-size = # spring.datasource.max-open-prepared-statements = # 等价于上面的 max-pool-prepared-statement-pe...
privateintmaximumPoolSize=20;// 连接超时时间。默认值30秒。小于250ms会被重置为最小值250ms。privatelongconnectionTimeout=300L;// 线程空闲超时时间,当大于核心线程小于最大线程时才生效。默认值10分钟。privateLongidleTimeout=6000000L;// 线程的最大存活时间,从线程创建开始计时,到此时间会自动关闭,应小于...
Class.forName("org.h2.Driver");// 用户名和密码都是自定义的,第一次为创建.db文件,也可以不设置密码Connectionconn=DriverManager.getConnection("jdbc:h2:c:/myh2.db","lingkang","123456");Statementstat=conn.createStatement();// 创建一个表 注意 user是一个专有名词,需要使用`` 或者更改其他名字stat...
Specifyorg.springframework.bootas the ID of the group that the dependency belongs to, andspring-boot-starter-data-jpaas the dependency ID. This dependency contains necessary dependencies and configurations for JPA-based database accesses, and is a Spring Boot starter. The sample code is as follow...
Preload static code blocks. To facilitate testing, a Druid connection pool is used in this example. static { Map<String, String> map = new HashMap<String, String>(); map.put("url", "jdbc:oceanbase://10.100.xxx.xxx:18815/test"); map.put("driverClassName", "com.alipay.oceanbase.jdbc....
springboot project,Which database connection pool is recommended? 👍 1 Contributor zhicwu commented Dec 30, 2021 • edited 0.3.2 only supports http and grpc so connection pool is not very help. You can pick whatever you want. However, after tcp client being added into 0.3.3, you pr...
1. Starting with version 2, Spring Boot uses HikariCP as the default connection pool and it is transitively imported with the following Spring Boot starters:spring-boot-starter-jdbcorspring-boot-starter-data-jpa. Copy code snippet Copied to Clipboard ...
commons-pool 对象池 对比 前言 事情是这样的 今天在拉取了同事的代码做redis缓存设置的时候,发现即使已经设置了database, 但是存数据的时候还是用的默认0数据库。这引起了我的好奇,遂开始琢磨是什么情况造成的这种现象。 配置 上述仅为测试代码问题,为了便于维护可以这么写, ...
将Spring Boot 配置为使用 Azure Database for MySQL 打开src/main/resources/application.properties文件,添加以下内容: properties logging.level.org.springframework.data.r2dbc=DEBUGspring.r2dbc.url=r2dbc:pool:mysql://$AZ_DATABASE_NAME.mysql.database.azure.com:3306/demo?tlsVersion=TLSv1.2spring...
将Spring Boot 配置为使用 Azure Database for MySQL打开src/main/resources/application.properties 文件,添加以下内容:properties 复制 logging.level.org.springframework.data.r2dbc=DEBUG spring.r2dbc.url=r2dbc:pool:mysql://$AZ_DATABASE_NAME.mysql.database.azure.com:3306/demo?tlsVersion=TLSv1.2 spri...