我试图创建我的基本 spring 应用程序并尝试连接到我的 MongoDB 数据库。所以创建我的实体
import lombok.*;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Document
@Data @AllArgsConstructor @NoArgsConstructor @ToString
public class MyProduct {
@Id
private String id;
private String name;
private int price;
}
我的存储库
import com.nizar.back.demo.entities.MyProduct;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.data.rest.core.annotation.RepositoryRestResource;
@RepositoryRestResource
public interface MyProductRepository extends MongoRepository<MyProduct,String> {
}
我的 application.properties
server.port=8093
spring.data.mongodb.uri=mongodb://<my username>:<my password>@cluster0.zgrrb.mongodb.net/appDatabase?retryWrites=true&w=majority
这是我的应用程序类
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
@SpringBootApplication
@EnableAutoConfiguration(exclude={ DataSourceAutoConfiguration.class, MongoAutoConfiguration.class, MongoDataAutoConfiguration.class})
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
当我尝试运行我的应用程序时，我注意到我有这个错误，我不明白为什么？
2021-07-21 18:04:49.921 INFO 7524 --- [ main] com.nizar.back.demo.DemoApplication : Starting DemoApplication using Java 1.8.0_291 on DESKTOP-6PB4U74 with PID 7524 (C:\dev projects\spring project\demo\target\classes started by abdel in C:\dev projects\spring project\demo)
2021-07-21 18:04:49.924 INFO 7524 --- [ main] com.nizar.back.demo.DemoApplication : No active profile set, falling back to default profiles: default
2021-07-21 18:04:50.411 INFO 7524 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data MongoDB repositories in DEFAULT mode.
2021-07-21 18:04:50.459 INFO 7524 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 43 ms. Found 1 MongoDB repository interfaces.
2021-07-21 18:04:50.724 WARN 7524 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myProductRepository' defined in com.nizar.back.demo.dao.MyProductRepository defined in @EnableMongoRepositories declared on MongoRepositoriesRegistrar.EnableMongoRepositoriesConfiguration: Cannot resolve reference to bean 'mongoTemplate' while setting bean property 'mongoOperations'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'mongoTemplate' available
2021-07-21 18:04:50.732 INFO 7524 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-07-21 18:04:50.749 ERROR 7524 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
A component required a bean named 'mongoTemplate' that could not be found.
我刚刚做了这个项目来了解spring boot。我只需要找出为什么会出现此错误以及如何解决它