基于spring boot的项目中的spring data mongodb配置(spring data mongodb configuration in spring boot based proje

基于spring boot的项目中的spring data mongodb配置(spring data mongodb configuration in spring boot based project)

我正在使用spring boot编写代码，它将csv作为输入并创建mongodb集合并将其插入mongodb。

目前我坚持在基于spring boot的代码中使用mongodb。我在MongoRepository接口上使用save方法时得到NullPointerException。

可能这个问题是由于application.yml文件中的配置不正确以下是src / main / resources目录中application.yml中mongodb特定的更改。

spring: data: mongodb.host: localhost mongodb.port: 27017 mongodb.uri: mongodb://localhost/test mongo.repositories.enabled: true

Application.java文件如下：

@Configuration @EnableMongoRepositories @Import(RepositoryRestMvcConfiguration.class) @EnableAutoConfiguration // Sprint Boot Auto Configuration @ComponentScan(basePackages = "com.khoubyari.example") public class Application extends SpringBootServletInitializer { private static final Class<Application> applicationClass = Application.class; private static final Logger log = LoggerFactory.getLogger(applicationClass); public static void main(String[] args) { SpringApplication.run(applicationClass, args); } @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.sources(applicationClass); } }

如果Application.java实现CommandLineRunner并在重写方法运行中编写mongodb插入特定代码，则代码工作正常。此代码位于以下URL中： https ： //spring.io/guides/gs/accessing-data-mongodb/

但是，我的Application.java扩展了SpringBootServletInitializer类并覆盖了configure（SpringApplicationBuilder应用程序）方法。请查看上面的Application.java。

我需要在基于spring boot的项目的不同包中的实用程序类中使用相同的db特定代码（就像我在Application.java类中提到的URL相同的代码）。

自定义存储库界面如下：

CustomRepository.java: public interface CustomRepository extends MongoRepository<CsvPojo, String>{ }

在实用程序类中，我只想注入CustomRepository并使用save方法在mongodb中保存创建的CsvPojo。但是在执行行customRepository.save（csvPojo）时我正在调整NullPointerException;

请指教！如果需要其他信息，请告诉我！

此致，Shobhit

I am writing code with spring boot which will take csv as input and create mongodb collection and insert it to mongodb.

Currently I am sticking in using mongodb in spring boot based code. I am getting NullPointerException while using save method on MongoRepository interface.

Probably this problem is due to incorrect configuration in application.yml file Below is mongodb specific changes in application.yml in src/main/resources directory.

spring: data: mongodb.host: localhost mongodb.port: 27017 mongodb.uri: mongodb://localhost/test mongo.repositories.enabled: true

Application.java file is below:

If Application.java implements CommandLineRunner and write mongodb insertion specific code in overrided method run, code is working fine. This code is available in this URL: https://spring.io/guides/gs/accessing-data-mongodb/

but, my Application.java extends SpringBootServletInitializer class and override configure(SpringApplicationBuilder application) method. Please look at above for my Application.java.

I need to use same db specific code (as in same code for which URL I mentioned above in Application.java class) in utility class existing in different package for my spring boot based project.

Custom repository interface is below:

CustomRepository.java: public interface CustomRepository extends MongoRepository<CsvPojo, String>{ }

In utility class, I just want to inject CustomRepository and use save method to save created CsvPojo in mongodb. But I am geiing NullPointerException while executing line customRepository.save(csvPojo);

Please suggest! If other information is needed, please tell me!

Regards, Shobhit