62 lines
2.0 KiB
Java
62 lines
2.0 KiB
Java
package com.sky.controller.user;
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import com.alibaba.fastjson.JSON;
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import com.sky.constant.StatusConstant;
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import com.sky.entity.Dish;
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import com.sky.result.Result;
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import com.sky.service.DishService;
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import com.sky.vo.DishVO;
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import io.swagger.annotations.Api;
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import io.swagger.annotations.ApiOperation;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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import javax.annotation.Resource;
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import java.util.List;
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import java.util.concurrent.TimeUnit;
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@RestController("userDishController")
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@RequestMapping("/user/dish")
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@Slf4j
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@Api(tags = "C端-菜品浏览接口")
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public class DishController {
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@Resource
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private DishService dishService;
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@Resource
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private RedisTemplate redisTemplate;
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/**
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* 根据分类id查询菜品
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*
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* @param categoryId Long
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* @return Result<List < DishVO>>
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*/
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@GetMapping("/list")
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@ApiOperation("根据分类id查询菜品")
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public Result<List<DishVO>> list(@RequestParam Long categoryId) {
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// 设置Redis中key
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String key = "dish_" + categoryId;
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// 查询Redis中数据
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List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(key);
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// 如果不为空返回集合
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if (list != null && !list.isEmpty()) {
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return Result.success(list);
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}
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// 如果Redis中没有，将值放入
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Dish dish = new Dish();
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dish.setCategoryId(categoryId);
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dish.setStatus(StatusConstant.ENABLE);// 查询起售中的菜品
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// 将这个数据保存到redis中
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list = dishService.listWithFlavor(dish);
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redisTemplate.opsForValue().set(key, JSON.toJSON(list), 7, TimeUnit.DAYS);
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// 如果Redis中没有，返回这个数据并保存这个数据
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return Result.success(list);
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}
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}
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