如何在Springboot中使用单个api根据用户类型保存不同的用户？

Question

我想保存学生和教师的信息使用单一的邮政API。如果我选择“学生”类型，数据将保存在学生表中。如果我选择“教师”类型，数据将保存在教师表中。但是该操作将由一个API调用完成。

package com.example.demo.Model;

import java.util.Date;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.ManyToOne;

import com.sun.istack.NotNull;

@Entity
public class Student {
    @Id
    private int s_id;
    @NotNull
    private String s_name;
    @NotNull
    private Date admission_date;
    @ManyToOne
    private Class class_id;
    public int getS_id() {
        return s_id;
    }
    public void setS_id(int s_id) {
        this.s_id = s_id;
    }
    public String getS_name() {
        return s_name;
    }
    public void setS_name(String s_name) {
        this.s_name = s_name;
    }
    public Date getAdmission_date() {
        return admission_date;
    }
    public void setAdmission_date(Date admission_date) {
        this.admission_date = admission_date;
    }
    public Class getClass_id() {
        return class_id;
    }
    public void setClass_id(Class class_id) {
        this.class_id = class_id;
    }
}

package com.example.demo.Model;

import javax.persistence.Entity;
import javax.persistence.Id;

import com.sun.istack.NotNull;

@Entity
public class Teacher {
    @Id
    private int t_id;
    @NotNull
    private String t_name;
    public int getT_id() {
        return t_id;
    }
    public void setT_id(int t_id) {
        this.t_id = t_id;
    }
    public String getT_name() {
        return t_name;
    }
    public void setT_name(String t_name) {
        this.t_name = t_name;
    }
}

@Service
public class ServiceImplementation implements SchoolService {
    @Autowired
    private StudentRepository sp;
    private TeacherRepository tp;

    @Override
    public void save(Student student) {
        sp.save(student);
    
    }

    @Override
    public void save(Teacher teacher) {
       tp.save(teacher);
    
    }

}

@Controller
public class SchoolController {
    @Autowired
    private ServiceImplementation si;

    @PostMapping("/save/{type}")
    public void add(@PathVariable("type") String type) {
        if(type.equals("Student")) {
        
    }


}

Answer 1

使用Gson库处理json到java对象的转换，Yu将需要发送的学生json或教师json数据随类型一起保存到数据库中

import com.google.gson.Gson

@Controller
public class SchoolController {
@Autowired
private ServiceImplementation si;

@PostMapping("/save/{type}")
  public void add(@PathVariable("type") String type, @RequestParam String json ) {
    Gson gson = new Gson();
    if(type.equals("Student")) {
        Student  student = gson.fromJson(json, Student.class);
        si.save(student);
    }
    else {
        Teacher teacher = gson.fromJson(json, Teacher.class);
        si.save(teacher);
    }
    
}

}