Vue案例—学生管理系统—html版（下篇）（二）

//添加或修改
    @Override
    public boolean saveOrupdate(Student student) {
        Student stu = studentMapper.selectByPrimaryKey(student.getSid());
        int result = -1 ;
        if (stu == null){
            //添加
            result = studentMapper.insert(student);
        }else {
            //修改
            result = studentMapper.updateByPrimaryKey(student);
        }
        return result==1;
    }

@PostMapping("/saveOrupdate")
    public BaseResult addOrupdate(@RequestBody Student student) {
        try {
            boolean f = studentService.saveOrupdate(student);
            if (f){
                return BaseResult.ok("编辑成功！");
            }else {
                return BaseResult.ok("编辑失败！");
            }
        } catch (Exception e) {
            e.printStackTrace();
            return BaseResult.error(e.getMessage());
        }
    }