使用 java 元数据获取数据库名称的最佳方法是什么

Question

In my application using different databases (postgres, mssql, oracle...). What is the best way to get database name use metadata. I was trying to use this approach:

try (final Connection connection = jdbcTemplate.getDataSource().getConnection()) {
    final DatabaseMetaData metaData = connection.getMetaData();
    final String databaseName = StringUtils.substringAfterLast(connection.getMetaData().getURL(), "/");

It works in this case:

spring.datasource.url=jdbc:mysql://localhost:3306/2022_2

But in this case it doesn't work:

spring.datasource.url=jdbc:sqlserver://localhost:1433;DatabaseName=test_mssql;encrypt=true;trustServerCertificate=true;

Answer 1

You may consider using Connection#getCatalog() for your case.

Please see the following example below:

try (final Connection connection = jdbcTemplate.getDataSource().getConnection()) {
    String databaseName = connection.getCatalog();
} catch (SQLException e) {
    e.printStackTrace();
}