Cannot connect non primary database in spring boot

Question

I am new to spring boot. Through tutorials, I have build an application. But when I try to connect 2 mysql database, I am successfull in connecting first DB, but for second the code always refer to the primary database and throws error that the table doesn't exist.

Answer 1

There are multiple ways to achieve that depend on requirements also.

• Create Two Datasource bean while both database url, username, pwd defined in property file. Read them through @Value and create @bean of both source

   @Value("${datasource.url}") private String url; @Value("${datasource.username}") private String username; @Value("${datasource.password}") private String password; @Bean @Primary public DataSource dataSource1() { return DataSourceBuilder.create().username(username).password(password).url(url).build(); } @Bean public DataSource dataSource2() { return DataSourceBuilder.create().username(username).password(password).url(url).build(); }

• In case you have requirement to sync both database operations, I would suggest to use JTA