今日学习了springboot的前后端连接，完成了增删改查的初步操作，没想到居然和学习jsp时的大差不差，但是springboot似乎无法处理post？
controller
@PostMapping("/add")public Result add(@RequestBody Employee employee){employeeService.add(employee);return Result.success();}
service
public void add(Employee employee) {employeeMapper.add(employee);}
Mapper
void add(Employee employee);
xml
<insert id="add" parameterType="com.example.demo.entity.Employee">insert into employee(id,name,gender)values (#{id},#{name},#{gender})</insert>
同样的，mapper可以写注释进行操作。
@Select("select * from employee where id=#{id}")Employee selectById(Integer id);
