Spring boot 使用spring jpa搜索登录用户的记录

我是spring boot的新手，正在尝试创建一个用于跟踪费用的web应用程序。我使用了spring安全性来实现登录机制。以下是费用和用户的实体

用户实体：

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

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "user_id")
    private int id;
    @Column(name = "email")
    @Email(message = "*Please provide a valid Email")
    @NotEmpty(message = "*Please provide an email")
    private String email;
    @Column(name = "password")
    @Length(min = 5, message = "*Your password must have at least 5 characters")
    @NotEmpty(message = "*Please provide your password")
    private String password;
    @Column(name = "name")
    @NotEmpty(message = "*Please provide your name")
    private String name;
    @Column(name = "last_name")
    @NotEmpty(message = "*Please provide your last name")
    private String lastName;
    @Column(name = "active")
    private int active;
    @ManyToMany(cascade = CascadeType.ALL)
    @JoinTable(name = "user_role", joinColumns = @JoinColumn(name = "user_id"), inverseJoinColumns = @JoinColumn(name = "role_id"))
    private Set<Role> roles;

}

费用实体具有用户引用

费用存储库：

@Repository("expenseRepository")
public interface ExpenseRepository extends JpaRepository<Expense,Long> {

    @Query(value="SELECT sum(e.amount) from Expense e")
    public Double totalExpenses();

    @Query(value="select c.name as category, sum(e.amount) as amount from Category c, Expense e where c.id=e.category.id group by c.name")
    public List<ExpenseByCategory> getExpensesPerCategory();

    @Query(value="select e.paymentType as paymentType, sum(e.amount) as amount from Expense e group by e.paymentType")
    public List<ExpenseByPaymentType> getExpensesByPaymentType();

}

@Repository（“expenseRepository”）
公共接口费用存储库扩展了JpaRepository{
@查询（value=“从费用e中选择金额（e.金额”）
公共双重开支（）；
@查询（value=“选择c.name作为类别，sum（e.amount）作为c类中的金额，费用e，其中c.id=e.category.id按c.name分组”）
公共列表getExpensesPerCategory（）；
@查询（value=“选择e.paymentType作为paymentType，按e.paymentType从费用e组中选择sum（e.amount）作为金额”）
公共列表getExpensesByPaymentType（）；
}

我只想根据当前登录用户的id返回其费用记录。我无法构造@Query来执行此操作并提取当前登录用户的详细信息

请帮助

试试这个方法

import java.security.Principal;

public ReturnType methodName(Principal principal){
      System.out.println(principal);
      System.out.println(principal.getName());
}

你也可以用这个

import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
System.out.println(authentication.getName());

---

这回答了你的问题吗？

import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
System.out.println(authentication.getName());