使用redis缓存短信验证码和菜品数据

.idea/workspace.xml

@@ -4,10 +4,12 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="09a0ab93-8583-4cca-9183-2b28acbb0d2c" name="Changes" comment="加入redis，缓存验证码和菜品，并且使用Spring">
+    <list default="true" id="09a0ab93-8583-4cca-9183-2b28acbb0d2c" name="Changes" comment="redis环境配置">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/pom.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hactcm/cotroller/DishController.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hactcm/cotroller/DishController.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/resources/application.yml" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/resources/application.yml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hactcm/cotroller/UserController.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hactcm/cotroller/UserController.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/application.yml" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/application.yml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/cn/edu/hactcm/cotroller/UserController.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/cn/edu/hactcm/cotroller/UserController.class" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -61,7 +63,7 @@
     &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
     &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
     &quot;WebServerToolWindowFactoryState&quot;: &quot;false&quot;,
-    &quot;last_opened_file_path&quot;: &quot;D:/JavaWeb/project/take_out&quot;,
+    &quot;last_opened_file_path&quot;: &quot;D:/JavaWeb/project/take_out/src/main/java/cn/edu/hactcm/config&quot;,
     &quot;project.structure.last.edited&quot;: &quot;Project&quot;,
     &quot;project.structure.proportion&quot;: &quot;0.0&quot;,
     &quot;project.structure.side.proportion&quot;: &quot;0.0&quot;,
@@ -69,16 +71,19 @@
     &quot;spring.configuration.checksum&quot;: &quot;c52b1b9a69639134c64c20f35b444ef6&quot;
   }
 }</component>
+  <component name="ReactorSettings">
+    <option name="notificationShown" value="true" />
+  </component>
   <component name="RecentsManager">
     <key name="CreateClassDialog.RecentsKey">
       <recent name="cn.edu.hactcm.service.impl" />
     </key>
     <key name="CopyFile.RECENT_KEYS">
+      <recent name="D:\JavaWeb\project\take_out\src\main\java\cn\edu\hactcm\config" />
       <recent name="D:\JavaWeb\project\take_out\src\main\java\cn\edu\hactcm\entity" />
       <recent name="D:\JavaWeb\project\take_out\src\main\java\cn\edu\hactcm\common" />
       <recent name="D:\JavaWeb\project\take_out\src\main\java\cn\edu\hactcm\cotroller" />
       <recent name="D:\JavaWeb\project\take_out\src\main\java\cn\edu\hactcm\service\impl" />
-      <recent name="D:\JavaWeb\project\take_out\src\main\java\cn\edu\hactcm\service" />
     </key>
   </component>
   <component name="RunManager" selected="Spring Boot.TakeOutApplication">
@@ -161,6 +166,7 @@
       <workItem from="1681536930133" duration="12221000" />
       <workItem from="1681617252929" duration="9061000" />
       <workItem from="1681695089997" duration="825000" />
+      <workItem from="1681705529397" duration="2991000" />
     </task>
     <task id="LOCAL-00001" summary="加入redis，缓存验证码和菜品，并且使用Spring">
       <created>1681702796320</created>
@@ -169,7 +175,14 @@
       <option name="project" value="LOCAL" />
       <updated>1681702796320</updated>
     </task>
-    <option name="localTasksCounter" value="2" />
+    <task id="LOCAL-00002" summary="redis环境配置">
+      <created>1681704109575</created>
+      <option name="number" value="00002" />
+      <option name="presentableId" value="LOCAL-00002" />
+      <option name="project" value="LOCAL" />
+      <updated>1681704109575</updated>
+    </task>
+    <option name="localTasksCounter" value="3" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -188,6 +201,7 @@
   </component>
   <component name="VcsManagerConfiguration">
     <MESSAGE value="加入redis，缓存验证码和菜品，并且使用Spring" />
-    <option name="LAST_COMMIT_MESSAGE" value="加入redis，缓存验证码和菜品，并且使用Spring" />
+    <MESSAGE value="redis环境配置" />
+    <option name="LAST_COMMIT_MESSAGE" value="redis环境配置" />
   </component>
 </project>

src/main/java/cn/edu/hactcm/cotroller/DishController.java

@@ -13,11 +13,13 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.TimeUnit;
 
 @RestController
 @Slf4j
@@ -32,6 +34,9 @@ public class DishController {
 
     @Autowired
     private DishFlavorService dishFlavorService;
+
+    @Autowired
+    private RedisTemplate redisTemplate;
     /**
      * 添加菜品，涉及对两张表进行操作，引入新的数据模型Dto同时包含两张表的属性值，可以完美接受浏览器端传输的数据。
      * @param dishDto
@@ -39,6 +44,11 @@ public class DishController {
      */
     @PostMapping
     public R<String> save(@RequestBody DishDto dishDto){
+        String key = "dish_"+dishDto.getCategoryId()+dishDto.getStatus();
+        redisTemplate.delete(key);
+        //全部删除
+        /*Set keys = redisTemplate.keys("dish_*");
+        redisTemplate.delete(keys);*/
         dishService.saveWithFlavor(dishDto);
         return R.success("添加菜品成功！");
     }
@@ -112,6 +122,14 @@ public class DishController {
     @Transactional
     @PutMapping
     public R<String> update(@RequestBody DishDto dishDto){
+        //由于执行了更新操作，缓存中的数据与数据库中的数据已经不再一直，产生脏读数据。所以要对缓存进行删除
+        //按照分类删除
+        String key = "dish_"+dishDto.getCategoryId()+dishDto.getStatus();
+        redisTemplate.delete(key);
+        //全部删除
+        /*Set keys = redisTemplate.keys("dish_*");
+        redisTemplate.delete(keys);*/
+
         //对dish表进行更新
         dishService.updateById(dishDto);
 
@@ -152,6 +170,14 @@ public class DishController {
      */
     @GetMapping("/list")
     public R<List<DishDto>> list(Dish dish){
+        //直接从缓存中取数据，能取到直接返回，取不到再查数据库
+        String key ="dish_"+dish.getCategoryId()+dish.getStatus();
+        List<DishDto> list = (List<DishDto>) redisTemplate.opsForValue().get(key);
+        if (list != null) {
+            return R.success(list);
+        }
+
+        //需要查数据库：
         //封装条件：
         LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
         queryWrapper.eq(dish.getCategoryId() != null,Dish::getCategoryId,dish.getCategoryId())
@@ -160,7 +186,7 @@ public class DishController {
         //根据category_id查询该分类对应的所有菜品信息
         List<Dish> dishes = dishService.list(queryWrapper);
         //由于还要向移动端展示菜品的备选口味，所以此处需要查询dish_flavor表，将flavor一并返回给前端，故此封装为DishDto对象。
-        List<DishDto> dishDtos = new ArrayList<DishDto>();
+        list = new ArrayList<DishDto>();
         for (Dish dishInfo : dishes) {
 //            对象属性值拷贝
             DishDto dishDto = new DishDto();
@@ -171,9 +197,11 @@ public class DishController {
             List<DishFlavor> dishFlavors = dishFlavorService.list(dishFlavorLambdaQueryWrapper);
 //            为DishDto对象的flavors属性赋值
             dishDto.setFlavors(dishFlavors);
-            dishDtos.add(dishDto);
+            list.add(dishDto);
         }
-        return R.success(dishDtos);
+        //将查询到的数据放入缓存
+        redisTemplate.opsForValue().set(key,list,60, TimeUnit.MINUTES);
+        return R.success(list);
     }
 
 }

src/main/java/cn/edu/hactcm/cotroller/UserController.java

@@ -7,6 +7,7 @@ import cn.edu.hactcm.utils.ValidateCodeUtils;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 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.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -14,6 +15,7 @@ import org.springframework.web.bind.annotation.RestController;
 
 import javax.servlet.http.HttpSession;
 import java.util.Map;
+import java.util.concurrent.TimeUnit;
 
 @RestController
 @RequestMapping("/user")
@@ -22,6 +24,8 @@ public class UserController {
 
     @Autowired
     private UserService userService;
+    @Autowired
+    private RedisTemplate redisTemplate;
 
     /**
      * 发送手机短信验证码
@@ -36,7 +40,8 @@ public class UserController {
             log.info(code);
             //模拟发送短信
             //SMSUtils.sendMessage("汉马外卖","","1111111111",code);
-            session.setAttribute(user.getPhone(),code);
+//            session.setAttribute(user.getPhone(),code);
+            redisTemplate.opsForValue().set(user.getPhone(),code,5, TimeUnit.MINUTES);
             return R.success("发送成功");
         }
         return R.error("发送失败");
@@ -47,7 +52,7 @@ public class UserController {
     public R<User> login(@RequestBody Map map, HttpSession session){
         String code = (String) map.get("code");
         String phone = (String) map.get("phone");
-        if (code != null && code.equals(session.getAttribute(phone))) {
+        if (code != null && code.equals(redisTemplate.opsForValue().get(phone))) {
             LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
             queryWrapper.eq(User::getPhone,phone);
             User user = userService.getOne(queryWrapper);

target/classes/application.yml

@@ -10,6 +10,10 @@ spring:
       url: jdbc:mysql://localhost:3306/reggie?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true
       username: root
       password: yjx062711.
+  redis:
+    host: localhost
+    port: 6379
+    database: 0
 mybatis-plus:
   configuration:
     #在映射实体或者属性时，将数据库中表名和字段名中的下划线去掉，按照驼峰命名法映射