Spring Boot 和 Spring Session:如何控制数据源 [英] Spring Boot and Spring Session: How to control the DataSource

问题描述

我正在同时试验 Spring Boot 和 Spring session，特别是使用 JDBC.

I'm experimenting with Spring Boot and Spring session together, specifically using JDBC.

只需在 application.properties 中添加一行:

Just adding the line in application.properties:

spring.session.store-type=jdbc

让它正常工作，这很好，因为我碰巧在那个文件中也有一些数据源属性，即

made it just work, which is nice because I happen to also have some data source properties in that file, ie

myapp.datasource.url=jdbc:mysql://localhost/etc...
myapp.datasource.driver-class-name=com.mysql.jdbc.Driver

但我实际上是将它们用于我自己的数据源和我自己的配置，就像这样:

But I'm actually using those for my own data source with my own configuration, like so:

@Configuration
@PropertySource("classpath:credentials.properties")
public class DataSourceConfig {

@Primary
@Bean(name = "dataSource")
@ConfigurationProperties(prefix = "myapp.datasource")
public DataSource dataSource() {
    return DataSourceBuilder.create().build();
}
}

据我所知，Spring Session 正在创建自己的数据源，而不是使用我的.有没有办法让它改用我的?(我的真实数据源有一些额外的配置，这里没有显示 Hikari)

and as far as I can tell, Spring Session is creating its own data source instead of using mine. Is there a way I can get it to use mine instead? (my real data source has some additional configs with Hikari not shown here)

推荐答案

Spring Session 本身不创建 DataSource 而是使用应用程序上下文中存在的一个，如果它是:

Spring Session itself does not create DataSource but rather uses the one present in your application context, if it's the either:

• 唯一的DataSource bean
• DataSource 标记为 @Primary

• the only DataSource bean
• DataSource marked as @Primary

此外，如果您希望为 Spring Session 使用特定的 DataSource(例如，如果您的应用程序中有多个 DataSource)，您可以通过以下方式实现:

Also if you wish to use a specific DataSource for Spring Session (for example, if you have multiple DataSources in your application) you can do that by:

• 注释 DataSource 标记为 @SpringSessionDataSource 为 Spring Session 指定(Spring Session 2.0 以上)
• 提供使用所需DataSource 的JdbcTemplate bean 并将其命名为springSessionJdbcOperations(Spring Session 1.x)

• annotating DataSource marked as designated for Spring Session by @SpringSessionDataSource (Spring Session 2.0 onwards)
• providing JdbcTemplate bean that uses the desired DataSource and naming it springSessionJdbcOperations (Spring Session 1.x)

从JdbcHttpSessionConfiguration.

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