From 2132000c93ef262083f54688031e87bc5026b3be Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Mon, 24 Nov 2025 10:25:50 +0800
Subject: [PATCH] =?UTF-8?q?=E8=8B=8D=E7=A9=B9=E5=A4=96=E5=8D=96--redis?=
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---
 .../sky/controller/admin/DishController.java  | 26 ++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/sky-server/src/main/java/com/sky/controller/admin/DishController.java b/sky-server/src/main/java/com/sky/controller/admin/DishController.java
index 1bc2457..b346844 100644
--- a/sky-server/src/main/java/com/sky/controller/admin/DishController.java
+++ b/sky-server/src/main/java/com/sky/controller/admin/DishController.java
@@ -11,9 +11,11 @@ import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
+import java.util.Set;
 
 @RestController("adminDishController")
 @Slf4j
@@ -24,13 +26,20 @@ public class DishController {
     @Autowired
     private DishService dishService;
 
+    @Autowired
+    private RedisTemplate redisTemplate;
+
 
     @PostMapping
     @ApiOperation("新增菜品")
     public Result add(@RequestBody DishDTO dto){
         log.info("新增菜品：{}",dto);
         dishService.saveDishWitchFlavor(dto);
-
+        //清理新增菜品所绑定的分类的缓存数据
+        /*String key = "dish_"+dto.getCategoryId();
+        redisTemplate.delete(key);*/
+        String pattern = "dish_"+dto.getCategoryId();
+        cleanDishCache(pattern);
         return Result.success();
     }
 
@@ -52,6 +61,10 @@ public class DishController {
         log.info("菜品批量删除：{}",ids);
         //调用业务层的菜品批量删除功能
         dishService.deleteBath(ids);
+
+        //当前批量删除菜品时，我们需要通过更多的查询操作，才能知道删除了哪些分类的菜品，（为了效率）那么我们直接将所有的菜品缓存直接清楚即可
+        cleanDishCache("dish_*");
+
         return Result.success();
     }
 
@@ -68,6 +81,8 @@ public class DishController {
     public Result getById(@RequestBody DishDTO dishDTO){ //@RequestParam：能够使用springmvc框架，对1,2,3 参数进行切割
         log.info("修改菜品：{}",dishDTO);
         dishService.updateWithFlavor(dishDTO);
+        //当前修改菜品时，可能修改价格，也可能修改分类，那么我们直接将所有的菜品缓存直接清楚即可
+        cleanDishCache("dish_*");
         return Result.success();
     }
 
@@ -76,9 +91,18 @@ public class DishController {
     public Result startOrStop(@PathVariable Integer status,Long id){ //@RequestParam：能够使用springmvc框架，对1,2,3 参数进行切割
         log.info("菜品起售停售：{},{}",status,id);
         dishService.startOrStop(status,id);
+
+        //当前起售停售菜品，只传递了菜品ID，那么我们要知道对应的分类，还要做一次select，那么我们直接将所有的菜品缓存直接清楚即可
+        cleanDishCache("dish_*");
         return Result.success();
     }
 
+    //抽取清理菜品缓存
+    private void cleanDishCache(String pattern) {
+        Set keys = redisTemplate.keys(pattern);
+        redisTemplate.delete(keys);
+    }
+
     /**
      * 根据分类id查询菜品
      * @param categoryId