Determinecurrentlookupkey只执行一次
WebJan 6, 2024 · 对应的业务代码如下,数据源切换在其他项目使用正常,代码迁移过来之后偶发报出read-only异常,数据库处于只读模式。. 写方法需要事物默认走主库,在该方法前也没有数据源的切换。. @Transactional (rollbackFor = Exception. class) public DataResult settingMarketMsg ... WebFeb 12, 2024 · Spring 基于 aop 多 数据源切 换. 笔者 之前 论述过《 spring 数据源 -AbstractRoutingDataSource 》基于这个,我们只要保证,每次 切 换 数据源 ,改变 …
Determinecurrentlookupkey只执行一次
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WebOct 1, 2024 · Here we will actually define key-value pairs [“targetDataSources”] for all configured data sources in above step. The value will be data source bean name, and key will be result came from determineCurrentLookupKey() method in MyRoutingDataSource. We can also mention a default data source if nothing can be found for any user request. AbstractRoutingDataSource executes determineCurrentLookupKey() in order to find suitable DataSource from a set of available ones. Lookup key is used to obtain current DataSource. AbstractRoutingDataSource returns JDBC connections from that data source. Connection is returned from AbstractRoutingDataSource as if it was a normal source.
Web/**Retrieve the current target DataSource. Determines the * {@link #determineCurrentLookupKey() current lookup key}, performs * a lookup in the {@link #setTargetDataSources targetDataSources} map, * falls back to the specified * {@link #setDefaultTargetDataSource default target DataSource} if necessary. * @see … WebJun 16, 2024 · csdn已为您找到关于determineCurrentLookupKey不执行相关内容,包含determineCurrentLookupKey不执行相关文档代码介绍、相关教程视频课程,以及相关determineCurrentLookupKey不执行问答内容。为您解决当下相关问题,如果想了解更详细determineCurrentLookupKey不执行内容,请点击详情链接进行了解,或者注册账号 …
WebNov 12, 2024 · 很多人在使用多数据源时,都会遇到事务中不能切换数据源的情况,这个时候我们就需要对源码有所了解,接下来从源码的角度来说明为什么在事务中不能切换数据源:我们知道spring是通过DataSourceTransactionManager对事务进行管理的,当我们在执行事务 … WebApr 26, 2012 · AbstractRoutingDataSource executes determineCurrentLookupKey() in order to find suitable DataSource from a set of available ones. Lookup key is used to obtain current DataSource. AbstractRoutingDataSource returns JDBC connections from that data source. Connection is returned from AbstractRoutingDataSource as if it was a normal …
WebApr 18, 2024 · 上面这段源码的重点在于determineCurrentLookupKey()方法,这是AbstractRoutingDataSource类中的一个抽象方法,而它的返回值是你所要用的数据源dataSource的key值,有了这个key值,resolvedDataSource(这是个map,由配置文件中设置好后存入的)就从中取出对应的DataSource,如果找不到,就用配置默认的数据源。
WebDec 18, 2024 · 1. You can use AbstractRoutingDataSource to achieve this. AbstractRoutingDataSource requires information to know which actual DataSource to … notify employees of someone\u0027s terminationWebApr 12, 2024 · spring动态切换数据源时什么时候调用的AbstractRoutingDataSource. spring. 最近有spring配置多数据源,中间用了aop来完成动态的切换,发现一些地方不是很明 … notify electoral roll of deathWebJan 2, 2024 · 2. Maven Dependencies. Let's start by declaring spring-context, spring-jdbc, spring-test, and h2 as dependencies in the pom.xml: The latest version of the dependencies can be found here. If you are using Spring Boot, we can use the starters for Spring Data and Test: 3. Datasource Context. AbstractRoutingDatasource requires information to know ... how to share a google inviteWebdetermineCurrentLookupKey()这个方法的返回值决定了需要切换的数据源的KEY,就是根据这个KEY从targetDataSources取值(数据源)。 数据源切换如何保证线程隔离? 数据源属于一个公共的资源,在多线程的情况下如何保证线程隔离呢?不能我这边切换了影响其他线程 … how to share a google form with someoneWebDec 2, 2024 · 抽象方法 determineCurrentLookupKey() 是暴露给开发者的,我们可以通过实现该方法在不同数据源之间切换。 SpringBoot实践 1. 配置多数据源. 在 application.yml 如下配置 notify employer adlsaWebJul 21, 2024 · CSDN问答为您找到ARDS数据源切换,determineCurrentLookupKey()一直被调用相关问题答案,如果想了解更多关于ARDS数据源切 … how to share a google form without editWebJun 16, 2024 · 数据源真正切换的关键是 AbstractRoutingDataSource 的 determineCurrentLookupKey() **被调用,此方法是在open connection**时触发 3. 事务 … how to share a google map you created