Spring Boot issue in join table query in my repository code - spring

Question

Getting unsatisfied dependency error while using #Query in Spring Boot
In my repository I have added query to join tables but getting error at runtime
ERROR:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'empcontroller': Unsatisfied dependency expressed through field 'emprepo'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'employeeRepository' defined in com.emp.employeeMangement.api.Repository.EmployeeRepository defined in #EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Invocation of init method failed; nested exception is org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.List com.emp.employeeMangement.api.Repository.EmployeeRepository.getJoinInformation(); Reason: Validation failed for query for method public abstract java.util.List com.emp.employeeMangement.api.Repository.EmployeeRepository.getJoinInformation()!; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List com.emp.employeeMangement.api.Repository.EmployeeRepository.getJoinInformation()!
My code:
package com.emp.employeeMangement.api.Repository;
import com.emp.employeeMangement.api.DTO.ResponseDTO;
import com.emp.employeeMangement.api.Model.Employee;
import org.springframework.context.annotation.Bean;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;
import java.util.List;
#Repository
public interface EmployeeRepository extends JpaRepository<Employee,Long> {
#Query(value = "SELECT new com.emp.employeeMangement.api.DTO.ResponseDTO(e.empName,e.gender,e.email,e.empCode,a.noOfPresent,a.noOfAbsent) from Employee e JOIN e.Attendence a")
public List<ResponseDTO> getJoinInformation();
}
My controller code:
package com.emp.employeeMangement.api.Controller;
import com.emp.employeeMangement.api.DTO.RequestDTO;
import com.emp.employeeMangement.api.DTO.ResponseDTO;
import com.emp.employeeMangement.api.Exception.ResourceNotFoundException;
import com.emp.employeeMangement.api.Model.Employee;
import com.emp.employeeMangement.api.Repository.AttendenceRepository;
import com.emp.employeeMangement.api.Repository.EmployeeRepository;
import com.emp.employeeMangement.api.Repository.SalaryRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;
import java.util.List;
#RestController
public class Empcontroller {
#Autowired
private EmployeeRepository emprepo;
#Autowired
private AttendenceRepository attrepo;
#Autowired
private SalaryRepository salRepo;
#PostMapping("/saveEmployee")
public Employee saveEmployee(#RequestBody RequestDTO dto){
return emprepo.save(dto.getEmployee());
}
#GetMapping("/findAllEmp")
public List<Employee> findAllEmp(){
return emprepo.findAll();
}
#GetMapping("/getInfo")
public List<ResponseDTO> getJoinInformation(){
return emprepo.getJoinInformation();
}
My response to:
package com.emp.employeeMangement.api.DTO;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
#Data
#AllArgsConstructor
#NoArgsConstructor
#ToString
public class ResponseDTO {
private String empName;
private String email;
private String gender;
private int empCode;
private int noOfPresent;
private int noOfAbsent;
private int salAmount;
}

Answer 1

Spring Data tells you that the query is invalid. After a quick look it seems you are missing the field salAmount in the constructor.