为啥 JpaRepository.findAll() 方法从我的 Oracle 数据库中获取错误的数据？
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【中文标题】为啥 JpaRepository.findAll() 方法从我的 Oracle 数据库中获取错误的数据？【英文标题】：Why is the JpaRepository.findAll() method fetching the wrong data from my Oracle database?为什么 JpaRepository.findAll() 方法从我的 Oracle 数据库中获取错误的数据？ 【发布时间】：2019-09-15 16:49:12 【问题描述】：我的 Spring Boot 应用程序从我的 Oracle 数据库中获取了错误的数据，例如它检索了正确数量的行但内容不正确（数据丢失，其他行 [propably] 重复）。
我是 Spring Boot 和 Oracle 数据库的新手。我阅读了很多教程并编写了代码。现在我尝试创建我的第一个 Web 服务原型，该原型从 Oracle 12c 数据库中获取数据并通过 HTTP 端点访问它们。
我使用 SQL Developer 检查我想要显示的表格的内容，然后在我的 Spring Boot 应用程序中显示不同的内容。 我使用 Spring Boot 2.1.4。
我要显示的表格包含有关日常运行的 cronjobs 的信息。
这是控制器
import de.dat.verguetung.entity.DailyJobsEntity;
import de.dat.verguetung.service.DailyJobsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@CrossOrigin(origins = "http://localhost:4200")
@RestController
@RequestMapping("/dailyjobs")
public class DailyJobsController
@Autowired
DailyJobsService dailyJobsService;
@CrossOrigin(origins = "*")
@RequestMapping(value = "/all", method = RequestMethod.GET)
public List<DailyJobsEntity> getAllDailyJobs()
return dailyJobsService.getAllDailyJobs();
这是我的存储库界面
import de.prototype.entity.DailyJobsEntity;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface DailyJobsRepository extends JpaRepository<DailyJobsEntity, Integer>
这是我的模型
import javax.persistence.*;
import java.util.Date;
@Entity
@Table(name = "LOG_DAILY_JOBS")
public class DailyJobsEntity
@Id
@Column(name = "JOB_TITLE", nullable = false, length = 100)
private String jobTitle;
@Column(name = "OK", nullable = false, length = 10)
private Integer ok;
@Column(name = "JOB_RESULT", nullable = true, length = 1000)
private String jobResult;
@Column(name = "EXECUTION_DATE", nullable = false)
@Temporal(TemporalType.DATE)
private Date executionDate;
protected DailyJobsEntity()
public DailyJobsEntity(String jobTitle, Integer ok, String jobResult, Date executionDate)
this.jobTitle = jobTitle;
this.ok = ok;
this.jobResult = jobResult;
this.executionDate = executionDate;
public Date getExecutionDate() return executionDate;
public void setExecutionDate(Date executionDate) this.executionDate = executionDate;
public String getJobResult() return jobResult;
public void setJobResult(String jobResult) this.jobResult = jobResult;
public Integer getOk() return ok;
public void setOk(Integer ok) this.ok = ok;
public String getJobTitle() return jobTitle;
public void setJobTitle(String jobTitle) this.jobTitle = jobTitle;
这是我的服务
import de.dat.verguetung.dao.DailyJobsRepository;
import de.dat.verguetung.entity.DailyJobsEntity;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class DailyJobsService
@Autowired
DailyJobsRepository dailyJobsRepository;
public List<DailyJobsEntity> getAllDailyJobs()
return this.dailyJobsRepository.findAll();
这是我的主课
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class VerguetungApplication
public static void main(String[] args)
SpringApplication.run(VerguetungApplication.class, args);
该表有 156 行。该应用程序获取 156 行。没关系。 但是这些行中有 95% 都填充了错误的内容。 我有一个名为“EXECUTION_DATE”的列。 此列的条目范围从 2019-04-02 到 2019-04-16。 该应用程序显示执行日期为 2019-04-02 的每一行。
如果需要，我可以提供有关表格内容的更多详细信息。
我希望有人可以帮助我并指出我的错误。 在此先感谢:)
编辑： 这是表格中的内容：
58 1 58 02.04.19
58 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 58 02.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 0 ORA-01403: Keine Daten gefunden 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 0 ORA-01403: Keine Daten gefunden 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 146 03.04.19
get_vsu_movement_count 1 85 04.04.19
get_vsu_movement_count 1 76 05.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 23 15.04.19
get_vsu_movement_count 1 96 16.04.19
get_vsu_movement_count 1 96 16.04.19
get_vsu_movement_count 1 96 16.04.19
get_vsu_movement_count 1 96 16.04.19
get_vsu_movement_count 1 96 16.04.19
get_vsu_movement_count 1 96 16.04.19
get_vsu_movement_count 1 96 16.04.19
get_vsu_movement_count 1 96 16.04.19
这是应用程序显示的内容
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
58 | 1 | 58 | 2019-04-02
58 | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
get_vsu_movement_count | 1 | 58 | 2019-04-02
编辑 2 打印获取的行的代码
@CrossOrigin(origins = "http://localhost:4200")
@RestController
@RequestMapping("/dailyjobs")
public class DailyJobsController
@Autowired
DailyJobsService dailyJobsService;
@CrossOrigin(origins = "*")
@RequestMapping(value = "/all", method = RequestMethod.GET)
public List<DailyJobsEntity> getAllDailyJobs()
List<DailyJobsEntity> dJobs = dailyJobsService.getAllDailyJobs();
dJobs.stream().forEach(job ->
System.out.println(job.getJobTitle() + " | " + job.getOk() + " | " + job.getJobResult() + " | " + job.getExecutionDate());
);
System.out.println(dJobs.size());
return dJobs;
【问题讨论】：
我的猜测是错误在于您在应用程序中显示值的方式。curl http://localhost:8080/dailyjobs/all 的输出是什么？或者当您在控制器服务中打印每个日期时会发生什么？
不正确的数据是否仅适用于 EXECUTION_DATE 或其他列/行？
@JBNizet 如果我在控制器中打印每个获取的行，我添加了输出。
@Abhijeet 每列显示不正确的数据
那么您的应用程序和 SQL 工具中可能没有使用相同的数据库/模式/表。或者您在 SQL 工具中进行了修改，但尚未提交。或者您没有正确打印所有内容（您还没有发布代码）
【参考方案1】：
如果我没记错的话，您的 DailyJobsRepository 使用 DailyJobsRepository extends JpaRepository<DailyJobsEntity, Integer> 表示主键 ID 的类型为 Integer，而您的实体 DailyJobsEntity 将 ID 定义为 String 类型：
@Id
@Column(name = "JOB_TITLE", nullable = false, length = 100)
private String jobTitle;`
jobTitle 是实体的主键吗？因为我希望 PK 是整数类型。
【讨论】：
我将 DailyJobsRepository 更改为DailyJobsRepository extends JpaRepository<DailyJobsEntity, String> 这并没有改变输出。该表没有主键（我没有创建此表，我的工作是显示它）。这会是个问题吗？
将 ID 类型设置为 String 并不重要，因为表转储中使用的字符串键不是唯一的。这篇文章或许能进一步帮助你：***.com/questions/29561885/…
好的，我阅读了帖子并阅读了一些后续信息。解决我的问题的一种方法是使用“所有列作为 id”。这是否意味着我必须用 @Id 注释实体类中的每个字段？以上是关于为啥 JpaRepository.findAll() 方法从我的 Oracle 数据库中获取错误的数据？的主要内容，如果未能解决你的问题，请参考以下文章
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