使用SpringCache缓存套餐数据

pom.xml

@@ -24,6 +24,10 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-cache</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-redis</artifactId>

src/main/java/cn/czyx007/reggie/ReggieApplication.java

@@ -3,6 +3,7 @@ package cn.czyx007.reggie;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.web.servlet.ServletComponentScan;
+import org.springframework.cache.annotation.EnableCaching;
 import org.springframework.transaction.annotation.EnableTransactionManagement;
 
 /**
@@ -12,6 +13,7 @@ import org.springframework.transaction.annotation.EnableTransactionManagement;
 @SpringBootApplication
 @ServletComponentScan
 @EnableTransactionManagement
+@EnableCaching//开启SpringCache缓存功能
 public class ReggieApplication {
     public static void main(String[] args) {
         SpringApplication.run(ReggieApplication.class, args);

src/main/java/cn/czyx007/reggie/common/R.java

@@ -2,6 +2,7 @@ package cn.czyx007.reggie.common;
 
 import lombok.Data;
 
+import java.io.Serializable;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -10,7 +11,7 @@ import java.util.Map;
  * @createTime : 2022/12/19 - 23:32
  */
 @Data
-public class R<T> {
+public class R<T> implements Serializable {
     private Integer code; //状态码：1成功，0和其它数字为失败
 
     private String msg; //错误信息

src/main/java/cn/czyx007/reggie/controller/SetmealController.java

@@ -16,6 +16,8 @@ import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.CacheEvict;
+import org.springframework.cache.annotation.Cacheable;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.StringUtils;
 import org.springframework.web.bind.annotation.*;
@@ -39,12 +41,15 @@ public class SetmealController {
     @Autowired
     private SetmealDishService setmealDishService;
 
+    //清理setmealCache分类下的所有缓存数据
+    @CacheEvict(value = "setmealCache", allEntries = true)
     @PostMapping
     public R<String> save(@RequestBody SetmealDto setmealDto){
         setmealService.saveWithDish(setmealDto);
         return R.success("新增套餐成功");
     }
 
+    @Cacheable(value = "setmealCache", key = "#setmeal.categoryId + '_' + #setmeal.status")
     @GetMapping("/list")
     public R<List<Setmeal>> list(Setmeal setmeal){
         LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
@@ -87,6 +92,7 @@ public class SetmealController {
         return R.success(setmealService.getByIdWithDishes(id));
     }
 
+    @CacheEvict(value = "setmealCache", key = "#setmealDto.categoryId + '_' + #setmealDto.status")
     @PutMapping
     public R<String> update(@RequestBody SetmealDto setmealDto){
         setmealService.updateWithDishes(setmealDto);
@@ -103,6 +109,8 @@ public class SetmealController {
         return R.success("套餐状态已经更改成功！");
     }
 
+    //清理setmealCache分类下的所有缓存数据
+    @CacheEvict(value = "setmealCache", allEntries = true)
     @Transactional
     @DeleteMapping
     public R<String> delete(@RequestParam("ids") List<Long> ids){

src/main/resources/application.yml

@@ -1,4 +1,7 @@
 spring:
+  cache:
+    redis:
+      time-to-live: 1800000
   datasource:
     druid:
       driver-class-name: com.mysql.cj.jdbc.Driver