MyBatisPlus分页实现

添加分页插件

 @Bean
    public PaginationInterceptor paginationInterceptor(){
        return new PaginationInterceptor();
    }

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编写讲师分页查询接口的方法

@GetMapping("packageTeacher/{current}/{limit}")
    public R packageListTeacher(@PathVariable long current,
                                @PathVariable long limit){
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current,limit);
        try {
            int i=12/0;
        } catch (Exception e) {
            //执行自定义异常处理
            throw new GuliException(20001,"执行自定义异常处理");
        }
        //调用方法实现分页
        //调用方法时底层封装，把分页所有数据封装到pageTeacher对象里面
        teacherService.page(pageTeacher,null);
        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();

        return  R.ok().data("total",total).data("rows",records);
    }
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