调用save方法后会自动为实体类赋id值
Student student = new Student();
student.setName("小明");
student.setAge(16);
studentServiceImpl.save(student);
System.out.println(student); // {id = 1, name = "小明", age = 16}
调用save方法后会自动为实体类赋id值
Student student = new Student();
student.setName("小明");
student.setAge(16);
studentServiceImpl.save(student);
System.out.println(student); // {id = 1, name = "小明", age = 16}