The default DataSource for spring created covering

Configuration is as follows

    /**
     * Primary：标识为主配置，将默认的配置覆盖掉
     * ConfigurationProperties：设置配置来源
     *
     * @return DataSource
     */
    @Primary
    @Bean
    @ConfigurationProperties("spring.datasource")
    public DataSource dataSource() {
        return DataSourceBuilder.create().build();
    }