POST 请求将所有值保存到一列

Question

我使用 Postman 发送带有一些值的 POST 请求（我放置了两个字符串，一个用于用户名，另一个用于邮件），但所有数据都保存到第一列（“用户名”）。 我做错了什么？

这是我尝试过的。

{
    "username": "mm46676",
    "mail": "[email protected]"
}

我预计 mm46676 将保存在用户名列中，并且 [电子邮件受保护] 将保存在邮件列中。 我正在使用 H2 控制台来查看它是如何保存在数据库中的。

EmployeeController.java

import com.incompatibleTypes.plancation.plancationapp.model.Employee;
import com.incompatibleTypes.plancation.plancationapp.repository.EmployeeRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

@Controller
@RequestMapping(path = "/employee")
public class EmployeeController {

    private final EmployeeRepository employeeRepository;

    public EmployeeController(EmployeeRepository employeeRepository) {
        this.employeeRepository = employeeRepository;
    }

    @GetMapping("/all")
    public @ResponseBody Iterable<Employee> showAllEmployees(){
        return employeeRepository.findAll();
    }

    @PostMapping(path = "/add")
    public @ResponseBody String addNewEmployee (@RequestBody String username, String mail){
        Employee employee = new Employee();
        employee.setUsername(username);
        employee.setMail(mail);
        employeeRepository.save(employee);
        return "Employee Saved!";
    }
}

员工模型（如果有任何帮助的话）

package com.incompatibleTypes.plancation.plancationapp.model;

import jakarta.persistence.*;
import lombok.Data;


import java.time.LocalDateTime;
import java.util.HashSet;
import java.util.Set;
import java.util.UUID;

@Data
@Entity
@Table(name = "employee")
public class Employee {
    @Id
    @GeneratedValue(strategy = GenerationType.UUID)
    private UUID id;

    private Role role;
    @Column(name = "username")
    private String username;
    @Column(name = "mail")
    private String mail;

    @OneToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "department_id")
    private Department department;


    @ManyToOne
    @JoinColumn(name = "minimal_vacation_day_id") 
    private VacationDay minimalVacationDay;
    @ManyToMany
    @JoinTable(
            name = "employee_bonusvacdays",
            joinColumns = @JoinColumn(name = "bonus_vacation_day_id"),
            inverseJoinColumns = @JoinColumn(name = "employee_id")
    )
    private Set<BonusVacationDay> bonusVacationDays = new HashSet<>();
    private LocalDateTime dateEmployed;

}

Answer 1

您在控制器中使用

@RequestBody

和字符串，在这种情况下，您的整个输入就变成了一个字符串。尝试像这样替换：

@PostMapping(path = "/add")
public @ResponseBody String addNewEmployee(@RequestBody Employee employee){
   employeeRepository.save(employee);
   return "Employee Saved!";
}

祝你好运！