WebJan 6, 2024 · public class RoutingDataSource extends AbstractRoutingDataSource { @Override protected Object determineCurrentLookupKey() { return DBContext.getDBKey(); }} 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。 WebOct 29, 2016 · セッションを使用する前にこのdetermineCurrentLookupKeyが呼ばれてどのデータソースを使うかを都度決定します。 ここで返すのはキー文字列だけなので、先ほどDatasourceConfigでsetTargetDataSourcesに渡したHashMapのキーと対応させる必要があります。. さらにここで登場しているSchemaContextHolderについては次。
Spring多数据源动态切换 - 刘一二 - 博客园
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. 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 … how many calories in 4 oz of tuna salad
SpringMVC+mybatis动态切换数据源,多数据库语言databaseId无 …
http://www.manongjc.com/article/24616.html WebOct 14, 2015 · All you need to do is to extend it and to provide an implementation of an abstract determineCurrentLookupKey method. This is the place to implement your custom logic to determine the concrete DataSource. Returned Object serves as a lookup key. It is typically a String or en Enum, used as a qualifier in Spring configuration (details will follow WebdetermineCurrentLookupKey()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 many calories in 4 oz top sirloin steak