package com.mytaxi.controller;
import java.util.List;
import javax.validation.Valid;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestController;
import com.mytaxi.controller.mapper.CarMapper;
import com.mytaxi.datatransferobject.CarDTO;
import com.mytaxi.datatransferobject.CarDTO;
import com.mytaxi.domainobject.CarDO;
import com.mytaxi.domainvalue.Type;
import com.mytaxi.exception.ConstraintsViolationException;
import com.mytaxi.exception.EntityNotFoundException;
import com.mytaxi.service.car.CarService;
@RestController
@RequestMapping("v1/cars")
public class CarController
{
private final CarService carService;
@Autowired
public CarController(final CarService carService)
{
this.carService = carService;
}
@PostMapping
@ResponseStatus(HttpStatus.CREATED)
public CarDTO createCar(@Valid @RequestBody CarDTO carDTO) throws ConstraintsViolationException
{
CarDO carDO = CarMapper.makeCarDO(carDTO);
carDTO = CarMapper.makeCarDTO(carDO);
carService.create(carDO);
return carDTO;
}
java
package com.mytaxi.domainobject;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.EnumType;
import javax.persistence.Enumerated;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.UniqueConstraint;
import javax.validation.constraints.Max;
import com.mytaxi.domainvalue.Type;
@Entity
@Table(
name = "car",
uniqueConstraints = @UniqueConstraint(name = "uc_licensePlate", columnNames = {"licensePlate"})
)
public class CarDO
{
@Id
@Column(nullable = false)
@GeneratedValue
private Long id;
@Column(nullable = false)
@Enumerated(EnumType.STRING)
private Type manufacturer;
@Column(nullable = false)
private String licensePlate;
@Column(nullable = false)
private Integer seatCount;
@Column(nullable = false)
private String engineType;
@Column(nullable = false)
@org.hibernate.annotations.Type(type="yes_no")
private Boolean convertible;
@Column
@Max(5)
private Integer rating;
@Column(nullable = false)
@org.hibernate.annotations.Type(type="yes_no")
private Boolean isFunctioning = true;
@Column(nullable = false)
@org.hibernate.annotations.Type(type="yes_no")
private Boolean isBooked = false;
public Boolean getIsFunctioning()
{
return isFunctioning;
}
public void setIsFunctioning(Boolean isFunctioning)
{
this.isFunctioning = isFunctioning;
}
public CarDO(Type manufacturer, String licensePlate, Integer seatCount,
String engineType, Boolean convertible)
{
this.manufacturer = manufacturer;
this.licensePlate = licensePlate;
this.seatCount = seatCount;
this.engineType = engineType;
this.convertible = convertible;
}
public Long getId()
{
return id;
}
public void setId(Long id)
{
this.id = id;
}
public Type getManufacturer()
{
return manufacturer;
}
public void setManufacturer(Type manufacturer)
{
this.manufacturer = manufacturer;
}
public String getLicensePlate()
{
return licensePlate;
}
public void setLicensePlate(String licensePlate)
{
this.licensePlate = licensePlate;
}
public Integer getSeatCount()
{
return seatCount;
}
public void setSeatCount(Integer seatCount)
{
this.seatCount = seatCount;
}
public String getEngineType()
{
return engineType;
}
public void setEngineType(String engineType)
{
this.engineType = engineType;
}
public Boolean getConvertible()
{
return convertible;
}
public void setConvertible(Boolean convertible)
{
this.convertible = convertible;
}
public Integer getRating()
{
return rating;
}
public void setRating(Integer rating)
{
this.rating = rating;
}
}
cardto.java
package com.mytaxi.datatransferobject;
import javax.validation.constraints.NotNull;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.mytaxi.domainvalue.Type;
@JsonInclude(JsonInclude.Include.NON_NULL)
public class CarDTO
{
@JsonIgnore
private Long id;
@NotNull(message = "license plate can not be null!")
private String licensePlate;
@NotNull(message = "cartype can not be null!")
private Type carType;
@NotNull(message = "seatCount can not be null!")
private Integer seatCount;
@NotNull(message = "engineType can not be null!")
private String engineType;
private Boolean convertible;
private CarDTO()
{
}
public CarDTO(Long id, String licensePlate, Type carType, Integer seatCount, String engineType, Boolean convertible)
{
this.id = id;
this.licensePlate = licensePlate;
this.carType = carType;
this.seatCount = seatCount;
this.engineType = engineType;
this.convertible = convertible;
}
public static CarDTOBuilder newBuilder()
{
return new CarDTOBuilder();
}
@JsonProperty
public Long getId()
{
return id;
}
public String getLicensePlate()
{
return licensePlate;
}
public Type getCarType()
{
return carType;
}
public Integer getSeatCount()
{
return seatCount;
}
public String getEngineType()
{
return engineType;
}
public Boolean getConvertible()
{
return convertible;
}
public static class CarDTOBuilder
{
private Long id;
private String licensePlate;
private Type carType;
private Integer seatCount;
private String engineType;
private Boolean convertible;
public CarDTOBuilder setId(Long id)
{
this.id = id;
return this;
}
public CarDTOBuilder licensePlate(String licensePlate)
{
this.licensePlate = licensePlate;
return this;
}
public CarDTOBuilder setLicensePlate(String licensePlate)
{
this.licensePlate = licensePlate;
return this;
}
public CarDTOBuilder setCarType(Type carType)
{
this.carType = carType;
return this;
}
public CarDTOBuilder setSeatCount(Integer seatCount)
{
this.seatCount = seatCount;
return this;
}
public CarDTOBuilder setEngineType(String engineType)
{
this.engineType = engineType;
return this;
}
public CarDTOBuilder setConvertible(Boolean convertible)
{
this.convertible = convertible;
return this;
}
public CarDTO createCarDTO()
{
return new CarDTO(id, licensePlate, carType, seatCount, engineType, convertible);
}
}
package com.mytaxi.controller.mapper;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;
import com.mytaxi.datatransferobject.CarDTO;
import com.mytaxi.domainobject.CarDO;
public class CarMapper
{
public static CarDO makeCarDO(CarDTO carDTO)
{
return new CarDO(carDTO.getCarType(), carDTO.getLicensePlate(),
carDTO.getSeatCount(), carDTO.getEngineType(), carDTO.getConvertible());
}
public static CarDTO makeCarDTO(CarDO carDO)
{
CarDTO.CarDTOBuilder carDTOBuilder = CarDTO.newBuilder()
.setId(carDO.getId())
.setCarType(carDO.getManufacturer())
.licensePlate(carDO.getLicensePlate())
.setSeatCount(carDO.getSeatCount())
.setEngineType(carDO.getEngineType())
.setConvertible(carDO.getConvertible());
return carDTOBuilder.createCarDTO();
}
public static List<CarDTO> makeCarDTOList(Collection<CarDO> cars)
{
return cars.stream()
.map(CarMapper::makeCarDTO)
.collect(Collectors.toList());
}
}
package com.mytaxi.service.car;
import java.util.List;
import com.mytaxi.domainobject.CarDO;
import com.mytaxi.domainvalue.Type;
import com.mytaxi.exception.ConstraintsViolationException;
import com.mytaxi.exception.EntityNotFoundException;
public interface CarService
{
CarDO create(CarDO carDO) throws ConstraintsViolationException;
}
@Override
public CarDO create(CarDO carDO) throws ConstraintsViolationException
{
CarDO car;
try
{
car = carRepository.save(carDO);
}
catch (DataIntegrityViolationException e)
{
LOG.warn("ConstraintsViolationException while creating a driver: {}", carDO, e.getCause());
throw new ConstraintsViolationException(e.getMessage());
}
return car;
}
package com.mytaxi.dataaccessobject;
import java.util.List;
import org.springframework.data.repository.CrudRepository;
import com.mytaxi.domainobject.CarDO;
import com.mytaxi.domainvalue.Type;
public interface CarRepository extends CrudRepository<CarDO, Long>
{
List<CarDO> findByIsFunctioning(Boolean isFunctioning);
CarDO findByLicensePlate(String licensePlate);
List<CarDO> findByManufacturer(Type type);
}
唯一索引或主键冲突:由:org.h2.jdbc.jdbcsqlexception使用:唯一索引或主键冲突:“public.car(ID)上的主键”;SQL语句:插入到car(可转换,engine_type,IS_Brooking,IS_Function,license_plate,Manufactor,rating,seat_count,id)值(?,?,?,?,?,?,?,?,?,?,?,?)[23505-197]在org.h2.message.dbexception.getJDBCSQLException(dbexception.java:357)~[H2-1.4.197.jar:1.4.197]在org.h2.message.dbexception.get(dbexception.java:179)~[H2-1.4.197.jar:1.4.197]在org.h2.message.dbexception.get(dbexception.java:155)~[H2-1.4.197.jar:1.4.197]在在org.h2.mvstore.db.mvtable.addrow(Mvtable.java:732)~[H2-1.4.197.jar:1.4.197]在org.h2.commd.dml.insert.insertrows(insert.java:182)~[H2-1.4.197.jar:1.4.197]在org.h2.commd.dml.insert.updat(insert.java:134)~[H2-1.4.197.jar:1.4.197]在(command.java:261)~[H2-1.4.197.jar:1.4.197]在org.h2.jdbc.jdbc.jdbpreparedStatement.executeUpdateInternal(jdbcpreparedStatement.java:199)~[H2-1.4.197.jar:1.4.197]在org.h2.jdbc.jdbpreparedStatement.executeUpdateInternal(jdbcpreparedStatement.java:199)~[H2-1.4.197.jar:1.4.197]在AR:1.4.197]在com.zaxxer.hikari.pool.proxyPreparedStatement.executeUpdate(ProxyPreparedStatement.java:61)~[hikarICP-2.7.9.jar:na]在com.zaxxer.hikari.pool.hikariProxyPreparedStatement.executeUpdate(HikariProxyPreparedStatement.java)~[hikarICP-2.7.9.jar:na]在...93个公共帧省略“public.car(ID)上的主键:
你知道代码有什么问题吗?
我在@entity
类中遇到了同样的问题。我的Data.sql ID与H2中自动生成的ID冲突。
我的解决方案是更改:
@GeneratedValue(strategy = GenerationType.AUTO)
到
@GeneratedValue(strategy = GenerationType.IDENTITY)
这样我可以保留我的data.sql文件。
这里的javadoc指示generationtype.identity
“指示持久性提供程序必须使用数据库标识列为实体分配主键。
每当我的应用程序启动时,我总是得到以下错误消息: 将data.sql更改为: 生成以下错误消息:
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