Hello,
I'm new to Spring data momgoDB. I'm trying to use @DBRef to refer a Document(Comments) from another Document(News) with spring-data-mongodb-1.7.0.RELEASE.jar. To make things easy, I'm not passing anything as parameters for the rest call. The Comments collection exist in the database. I'm getting the following exception
SEVERE: Servlet.service() for
servlet [appServlet] in context with path [/news] threw exception [Handler processing failed; nested exception is java.lang.NoSuchMethodError: com.mongodb.DBRef.<init>(Ljava/lang/String;Ljava/lang/Object;)V] with root cause java.lang.NoSuchMethodError: com.mongodb.DBRef.<init>(Ljava/lang/String;Ljava/lang/Object;)V
I'm looking for advice from the experts. Thanks in advance.
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Document
public class Comments{
@Id
private
String id;
private String Comment;
public Comments(String comment){
this.id = UUID.randomUUID().toString();
this.comment = comment
}
//getters & setters
}
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.DBRef;
import org.springframework.data.mongodb.core.mapping.Document;
@Document
public class News{
@Id
private String id;
private String Title;
private String summary;
@DBRef
private List<Comments> comments;
public News(){
}
public News(String title, String summary){
this.id = UUID.randomUUID().toString();
this.title = title;
this.summary = summary;
}
//getters and setters
}
@RestController
@RequestMapping(value = "/rest/test")
public class HomeController {
private static final Logger logger = LoggerFactory.getLogger(HomeController.class);
@RequestMapping(value = "/createnews", method = RequestMethod.POST)
public void createNews() {
logger.info("createNews method started");
News news = new News("News Title", "News summary");
List<Comments> commentList = new ArrayList<Comments>();
Comments comments = new Comments("News Comments");
commentList.add( comments );
news.setComments( commentList );
logger.info("createNews method ended");
}
}
