org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: At least one JPA metamodel must be present!

使用springboot做jdbcTemplate的注入時候，啟動報錯！！

原因：springboot已經配置了datasource的自動化配置，因為做了jpa的自動化配置去除導致

@Configuration
@EnableAutoConfiguration(exclude = {
        MetricExportAutoConfiguration.class,
        SecurityAutoConfiguration.class,
        ManagementWebSecurityAutoConfiguration.class,
       DataSourceAutoConfiguration.class,
       HibernateJpaAutoConfiguration.class,
       DataSourceTransactionManagerAutoConfiguration.class,
        MetricExportAutoConfiguration.class
})
@ComponentScan
@EnableDiscoveryClient
@EnableAspectJAutoProxy(proxyTargetClass = true)
@EnableFeignClients
@EnableScheduling
public class PackResolveServiceApp extends SpringBootServletInitializer {

    public static void main(String[] args) throws NoSuchFieldException, IllegalAccessException {
        SpringApplication.run(PackResolveServiceApp.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(PackResolveServiceApp.class);
    }
}
 

在程式碼中就能使用jdbcTemplate：

    @Autowired
    DataSource dataSource;

    @Bean
    public JdbcTemplate jdbcTemplate() {
        JdbcTemplate jdbcTemplate = new JdbcTemplate();
        try {
            jdbcTemplate.setDataSource(this.dataSource);
            jdbcTemplate.setLazyInit(false);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return jdbcTemplate;
    }