如何在Spring Data Mongo DB中使用带下划线的数据模型变量？

Question

我正在使用Spring Boot和带有Mongo DB的Spring Data进行Web项目。 我有一个名为Employee的模型类，带有带下划线的变量名。我编写了一种使用group by从DB获取字段计数的方法，但是当我执行应用程序时，我得到了错误 org.springframework.data.mapping.PropertyReferenceException：找不到类型为Employee的属性人！

TypedAggregation<Employee> studentAggregation = 
Aggregation.newAggregation(Employee.class,              Aggregation.group("customer","person_Type","project_Location").count().as("total"),Aggregation.project("customer","person_Type","project_Location",
                       "total"),Aggregation.sort(Direction.ASC,"customer"
                       ,"person_Type","project_Location"));

AggregationResults<Employee> results = mongoTemplate.aggregate(studentAggregation, Employee.class);

员工数据模型：

@Document(collection = "employee")
public class Employee {
    @Id
    public long emp_id;
    private String work_Geography;
    private String work_Country;
    private String work_Location;
    private String customer;
    private String project_Location;
    private String person_Type;
}

Answer 1

这是处理带下划线的属性的错误（DATAMONGO-2339），已在 Lovelace SR 11 又称为 Spring Data MongoDB 2.1.11 中解决。请升级。