Springboot postgres Failed to determine a suitable driver class

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;
    }

For me the issue was in a miss-spell for postgresSql

its only one s,

replace

1. spring.datasource.url=jdbc:postgres://localhost:5432/databaseName
2. spring.datasource.url=jdbc:postgressql://localhost:5432/databaseName

with
spring.datasource.url=jdbc:postgresql://localhost:5432/databaseName

also check the same thing on hibernate dialect,

replace PostgresSQLDialect with PostgreSQLDialect