将"_class“从MongoDB - Springboot中删除
将"_class“从MongoDB - Springboot中删除
提问于 2021-07-01 07:46:27
我是SpringBoot的新手，我正在尝试将我的SpringBoot应用程序与MongoDB连接起来。GET请求完全正常工作，但是POST请求在我不想要的数据中添加了一个"_class“字段。我做了一些搜索，发现我必须添加一个@Configuration类来解决这个问题，但是当我添加@Configuration类时，我得到了以下错误：
Field mongoDbFactory in com.example.demo.configuration.MongoConfig required a bean of type 'org.springframework.data.mongodb.MongoDbFactory' that could not be found.我的加密类代码如下：
MongoConfig.java :-
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.MongoDbFactory;
import org.springframework.data.mongodb.core.convert.DbRefResolver;
import org.springframework.data.mongodb.core.convert.DefaultDbRefResolver;
import org.springframework.data.mongodb.core.convert.DefaultMongoTypeMapper;
import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
@Configuration
public class MongoConfig {
@Autowired
private MongoDbFactory mongoDbFactory;
@Autowired
private MongoMappingContext mongoMappingContext;
@Bean
public MappingMongoConverter mappingMongoConverter() {
DbRefResolver dbRefResolver = new DefaultDbRefResolver(mongoDbFactory);
MappingMongoConverter converter = new MappingMongoConverter(dbRefResolver,
mongoMappingContext);
converter.setTypeMapper(new DefaultMongoTypeMapper(null));
return converter;
}
}Controller.java :-
import com.example.demo.model.Todo;
import com.example.demo.services.TodoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@RestController
public class Controller {
@Autowired
private TodoService todoService;
@GetMapping("/")
public List<Todo> getTodos() {
return todoService.getTodos();
}
@PostMapping("/")
public Todo addTodo(@RequestBody Todo todo) {
return todoService.addTodo(todo);
}
}TodoService.java :-
import com.example.demo.model.Todo;
import java.util.List;
public interface TodoService {
public List<Todo> getTodos();
public Todo addTodo(Todo todo);
}TodoServiceImplementation.java :-
import com.example.demo.model.Todo;
import com.example.demo.repository.TodoRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class TodoServiceImplementation implements TodoService{
@Autowired
private TodoRepository todoRepository;
@Override
public List<Todo> getTodos() {
return todoRepository.findAll();
}
@Override
public Todo addTodo(Todo todo) {
return todoRepository.save(todo);
}
}Stack Overflow用户
发布于 2022-01-09 08:18:59
import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.MongoDatabaseFactory;
import org.springframework.data.mongodb.core.convert.DbRefResolver;
import org.springframework.data.mongodb.core.convert.DefaultDbRefResolver;
import org.springframework.data.mongodb.core.convert.DefaultMongoTypeMapper;
import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
@Configuration
public class MongoConfiguration {
@Bean
public MappingMongoConverter mappingMongoConverter(MongoDatabaseFactory factory, MongoMappingContext context,
BeanFactory beanFactory) {
DbRefResolver dbRefResolver = new DefaultDbRefResolver(factory);
MappingMongoConverter mappingConverter = new MappingMongoConverter(dbRefResolver, context);
mappingConverter.setTypeMapper(new DefaultMongoTypeMapper(null));
return mappingConverter;
}
}尝尝这个
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原文链接：
https://stackoverflow.com/questions/68206238
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