Java com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:未知列'；城市0.国家代码'；在'；字段列表'；用弹簧靴
尝试使用Gradle创建一个简单的SpringBoot应用程序Api和数据库。尝试从表中获取数据时，使用api调用，在邮递员中获取异常：Java com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:未知列'；城市0.国家代码'；在'；字段列表'；用弹簧靴,java,mysql,hibernate,spring-boot,entity,Java,Mysql,Hibernate,Spring Boot,Entity,尝试使用Gradle创建一个简单的SpringBoot应用程序Api和数据库。尝试从表中获取数据时，使用api调用，在邮递员中获取异常： { "timestamp": "2018-04-01T12:45:40.218+0000", "status": 500, "error": "Internal Server Error", "message": "could not extract ResultSet; SQL [n/a]; nested exception
{
"timestamp": "2018-04-01T12:45:40.218+0000",
"status": 500,
"error": "Internal Server Error",
"message": "could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet",
"path": "/api/demo/towns"
}
@Entity
@Table(name="city")
public class City implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column(name="Name")
private String name;
@Column(name="CountryCode")
private String countryCode;
@Column(name="District")
private String district;
@Column(name="Population")
private int population;
public int getId(){
return id;
}
public void setId(int id){
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCountryCode() {
return countryCode;
}
public void setCountryCode(String countryCode) {
this.countryCode = countryCode;
}
public String getDistrict() {
return district;
}
public void setDistrict(String district) {
this.district = district;
}
public int getPopulation() {
return population;
}
public void setPopulation(int population) {
this.population = population;
}
public City(String name, String countryCode, String district, int population){
this.name = name;
this.countryCode = countryCode;
this.district = district;
this.population = population;
}
public City(){
}
}
@Repository("cityRepository")
public interface CityRepository extends CrudRepository<City, Integer> {
}
@RestController
@RequestMapping("/api/demo")
public class DemoController {
@Autowired
@Qualifier("cityRepository")
private CityRepository cityRepository;
@RequestMapping(value = "towns",
method = RequestMethod.GET,
produces = {MimeTypeUtils.APPLICATION_JSON_VALUE},
headers = "Accept=application/json")
public ResponseEntity<Iterable<City>> getTowns() {
Iterable<City> list = cityRepository.findAll();
return new ResponseEntity<Iterable<City>>(list, HttpStatus.OK);
}
}