Springboot postgres Failed to determine a suitable driver class

Question

I am trying to develop web application using SpringBoot and Postgres Database. However, on connecting to the application, I am getting error \"Failed to determine a suitable

Answer 1

The issue is resolved by creating two beans. Separate bean is created for DataSource and NamedParameterJdbcTemplate.

    @Bean
    public DataSource dataSource(){
        System.out.println(driverClass+" "+ url+" "+username+" "+password);
        DriverManagerDataSource source = new DriverManagerDataSource();
        source.setDriverClassName(driverClass);
        source.setUrl(url);
        source.setUsername(username);
        source.setPassword(password);
        return source;
    }

    @Bean
    public NamedParameterJdbcTemplate namedParameterJdbcTemplate(){
        NamedParameterJdbcTemplate namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(this.dataSource());
        return namedParameterJdbcTemplate;
    }

Answer 2

After taking a time, I realized that I've created the Datasource class outside the application package. Check this may help.

Answer 3

For me the error was

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured. Reason: Failed to determine a suitable driver class

Action: Consider the following: If you want an embedded database (H2, HSQL or Derby), please put it on the classpath. If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).

and the issue was missing profile so I added the following in the classpath and it worked

spring.profiles.active=dev