MybatisPlus中插入資料後獲取該物件主鍵值的實現
阿新 • • 發佈：2020-09-09
實體物件 主鍵IdType要設定為AUTO 表示資料庫ID自增
@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
public class Employee implements Serializable {
private static final long serialVersionUID = 1L;
@TableId(value = "id",type = IdType.AUTO)
private Integer id;
private String lastName;
private String email;
private Integer gender;
private Integer age;
}
返回的實體就會包含主鍵值
@PostMapping("add")
@ResponseBody
public Employee addEmployee() {
Employee employee = new Employee();
employee.setLastName("chen").setAge(18).setEmail("[email protected]").setGender(1);
employeeService.saveOrUpdate(employee);
return employee;
}
或者mapper層使用insert方法也會返回主鍵
@Override
public Employee saveEmp(Employee employee) {
baseMapper.insert(employee);
return employee;
}
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