java不能通过邮件获取或删除用户，但要创建新用户，我可以

Question

我在和克鲁德雷波一起做春靴项目 现在findAll（）和save（）方法工作得很好，但是当我试图获取用户或删除用户时，它不会返回任何结果

当我把一个普通的字符串作为电子邮件，比如“jksahd”或者其他什么东西，但当我把一个有效的邮件，比如hsdg2@dsj.com“delete（）和findOne（）不起作用

我的代码：

实体：

@Entity
@Table(name = "User")
public class User {

private long phoneNumber;
private String name;
private String lastName;
private String country;
private String countryCode;
private boolean isAdmin;
private String Email;
private String password;
private boolean isPaid;
@Basic(optional = false)
@Column(insertable = false,updatable = false)
@Temporal(TemporalType.TIMESTAMP)
@ColumnDefault("1492944369375")
private Date timeStamp = new Date(System.currentTimeMillis());
private String langSpeak;
private String tradeLvl;

public User(long phoneNumber, String name, String lastName, String country, String countryCode, boolean isAdmin, String email, String password, boolean isPaid, String langSpeak, String tradeLvl) {
    this.phoneNumber = phoneNumber;
    this.name = name;
    this.lastName = lastName;
    this.country = country;
    this.countryCode = countryCode;
    this.isAdmin = isAdmin;
    this.Email = email;
    this.password = password;
    this.isPaid = isPaid;
    this.timeStamp = timeStamp;
    //timeStamp = new Date();
    //setTimeStamp(timeStamp);
    this.langSpeak = langSpeak;
    this.tradeLvl = tradeLvl;
}

public User(){}

@Id
public String getEmail() {
    return Email;
}

然后是能手和二传手

服务方式

public String newUser(User user) {
    if (repo.exists(user.getEmail()))
        return "already exsists";
    repo.save(user);
    return "ok";
}

public User getUserByMail(String mail){
    //return userDao.getUserByMail(mail);
    repo.findOne(mail);
    return repo.findByEmail(mail);
}

public String deleteUserByMail(String mail) {
    if (repo.exists(mail)) {
        repo.delete(mail);
        return "ok";
    }

    return "already deleted";
}

回购类别：

@Repository
public interface UsersRepo extends CrudRepository<User,String> {
    public User findByEmail(String mail);
}

控制器：

@RequestMapping(method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
public String newUser(@RequestBody User user){
    return userService.newUser(user);
}

    @RequestMapping(value = "/{mail}",method = RequestMethod.GET)
public User getUserByMail(@PathVariable("mail") String mail){
    return userService.getUserByMail(mail);
}

@RequestMapping(value = "/{mail}",method = RequestMethod.DELETE)
public String deleteUserById(@PathVariable ("mail") String mail){
    return userService.deleteUserByMail(mail);
}