z-blog实现登录后显示“管理后台”按钮，未登录显示注册

    //根据id获取课程
    @Override
    @GetMapping("/coursebase/get/{courseId}")
    public CourseBase getCourseBaseById(@PathVariable("courseId") String courseId) throws RuntimeException {
        return courseService.getCourseBaseById(courseId);
    }
	//更新课程基本信息
    @Override
    @PutMapping("/coursebase/update/{id}")
    public ResponseResult updateCourseBase(@PathVariable("id") String id, @RequestBody CourseBase courseBase) {
        return courseService.updateCourseBase(id,courseBase);
    }