Question

我现在已经花了最后两天的时间来确定为什么删除单个行存在问题。这个问题让我感到困惑，因为没有任何错误！我可以肯定的事情是：1）Postgres DB中只有一个数据行。我已经硬编码了需要删除的主键。

用户注册控制器

@RestController
@RequestMapping(value = "registration")
public class RegistrationController {
    @Autowired
    UserRegistrationService registrationService;

    @PostMapping(value = "/register")
    public void registerUser(@RequestBody UserInformation accountInfo) {
        // Perform some back validation.
        registrationService.createUserInformation(accountInfo);
    }

    @DeleteMapping(value = "/register/{id}")
    public void deleteUser(@PathVariable("id") Integer userId) {
        // Delete the registration account
        registrationService.deleteUserInformation(userId);
    }
}

用户注册服务

@Service
public class UserRegistrationService {

    @Autowired
    UserInformationRepository userInformationRepository;

    /**
     * Accepts a user's registration and attempts to save it to the database.
     * @param info
     */
    public void createUserInformation(UserInformation info) {
        userInformationRepository.save(info);
    }

    public void deleteUserInformation(Integer userId) {
        UserInformation user = userInformationRepository.findById(userId).get();
        userInformationRepository.delete(user);
//        userInformationRepository.deleteById(userId);
    }
}

用户信息存储库

没有自定义方法签名。

用户信息模型

@Entity
@Table(name = "user_info")
public class UserInformation {

    @Id
    @Generated(value = "GenerationType.AUTO")
    private int id;

    @OneToOne(targetEntity = PersonalInfo.class, cascade = CascadeType.ALL, fetch = FetchType.EAGER, orphanRemoval = true)
    @JoinColumn(name = "personal_info")
    private PersonalInfo personalInfo;

    @Column(name = "username")
    private String username;

    @Column(name = "password")
    private String password;

    @Column(name = "email")
    private String emailAddress;

+ Setters and Getters
}

个人信息模型

@Entity
@Table(name = "personal_info")
public class PersonalInfo {
    @Id
    @Generated(value="GenerationType.AUTO")
    @Column(name = "info_id")
    private int infoId;

    @Column(name = "firstname")
    private String firstName;

    @Column(name = "lastname")
    private String lastName;

    @Column(name = "street")
    private String street;

    @Column(name = "city")
    private String city;

    @ManyToOne(cascade = CascadeType.PERSIST)
    @JoinColumn(name = "state_id")
    private States state;

    @Column(name = "zipcode")
    private String zipCode;

    @Column(name = "mobile_number")
    private String mobileNumber;

    @Column(name = "home_number")
    private String homeNumber;

    @Column(name = "work_number")
    private String workNumber;

    @OneToOne(mappedBy = "personalInfo", orphanRemoval = true)
    private UserInformation user;

+ Setters and Getters
}

状态模型

@Entity
@Table(name="states")
public class States {

    @Id
    //@Generated(value="GenerationType.AUTO")
    @Column(name = "id")
    private Long id;

    @Column(name="abbrev")
    private String abbreviation;

    @Column(name="state_name")
    private String stateName;

    @OneToMany(mappedBy = "state")
    private List<PersonalInfo> personalInfos;

    + Setters and Getters
}

我最初尝试使用deleteById，但似乎没有任何作用。我觉得我很想念我。

更新：我在UserInformation模型上将“ id”值上的数据类型从int更改为Integer。当我使用此更改运行删除测试时，记录将被删除。但是，然后我无法插入记录。似乎与数据类型以及Postgres数据库如何处理它有关。有人遇到过这种问题吗？

使用Integer数据类型插入时的堆栈跟踪

at com.deck.grocerymanager.Integration.RegistrationTest.userRegTest(RegistrationTest.java:82)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)

JPA不删除单行

0 个答案: