我使用的是 Spring Data MongoDB 1.4.2.Release 版本。对于 Spring Data MongoDB,我在一个位置创建了自定义存储库接口(interface)和实现,并创建了自定义查询函数 getUsersName(Users users)
。
但是我仍然遇到以下异常:
Caused by: org.springframework.data.mapping.PropertyReferenceException:
No property get found for type Users! at org.springframework.data.mapping.PropertyPath. (PropertyPath.java:75) at
org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:327) at
org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:359) at
org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:359) at
org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:307) at
org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:270) at
org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:241) at
org.springframework.data.repository.query.parser.Part.(Part.java:76) at
org.springframework.data.repository.query.parser.PartTree$OrPart.(PartTree.java:201) at
org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:291) at
org.springframework.data.repository.query.parser.PartTree$Predicate.(PartTree.java:271) at
org.springframework.data.repository.query.parser.PartTree.(PartTree.java:80) at
org.springframework.data.mongodb.repository.query.PartTreeMongoQuery.(PartTreeMongoQuery.java:47)
下面是我的 Spring Data MongoDB 结构:
/* Users Domain Object */
@Document(collection = "users")
public class Users {
@Id
private ObjectId id;
@Field ("last_name")
private String last_name;
@Field ("first_name")
private String first_name;
public String getLast_name() {
return last_name;
}
public void setLast_name(String last_name) {
this.last_name = last_name;
}
public String getFirst_name() {
return first_name;
}
public void setFirst_name(String first_name) {
this.first_name = first_name;
}
}
/* UsersRepository.java main interface */
@Repository
public interface UsersRepository extends MongoRepository<Users,String>, UsersRepositoryCustom {
List findUsersById(String id);
}
/* UsersRepositoryCustom.java custom interface */
@Repository
public interface UsersRepositoryCustom {
List<Users> getUsersName(Users users);
}
/* UsersRepositoryImpl.java custom interface implementation */
@Component
public class UsersRepositoryImpl implements UsersRepositoryCustom {
@Autowired
MongoOperations mongoOperations;
@Override
public List<Users> getUsersName(Users users) {
return mongoOperations.find(
Query.query(Criteria.where("first_name").is(users.getFirst_name()).and("last_name").is(users.getLast_name())), Users.class);
}
/* Mongo Test function inside Spring JUnit Test class calling custom function with main UsersRepository interface */
@Autowired
private UsersRepository usersRepository;
@Test
public void getUsersName() {
Users users = new Users();
users.setFirst_name("James");`enter code here`
users.setLast_name("Oliver");
List<Users> usersDetails = usersRepository.getUsersName(users);
System.out.println("users List" + usersDetails.size());
Assert.assertTrue(usersDetails.size() > 0);
}
最佳答案
您的存储库接口(interface)中的查询方法声明无效。正如 reference documentation 中明确指出的那样,查询方法需要以get…By
、read_By
、find…By
或query…by
开头。
关于mongodb - Spring Data MongoDB 在 org.springframework.data.mapping.PropertyPath 找不到类型的属性,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/23657661/