diff --git a/springcache-demo - inmind/src/main/java/com/inmind/controller/UserController.java b/springcache-demo - inmind/src/main/java/com/inmind/controller/UserController.java
index 097ff0a..b03f4df 100644
--- a/springcache-demo - inmind/src/main/java/com/inmind/controller/UserController.java	
+++ b/springcache-demo - inmind/src/main/java/com/inmind/controller/UserController.java	
@@ -4,6 +4,7 @@ import com.inmind.entity.User;
 import com.inmind.mapper.UserMapper;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.CacheEvict;
 import org.springframework.cache.annotation.CachePut;
 import org.springframework.cache.annotation.Cacheable;
 import org.springframework.web.bind.annotation.*;
@@ -35,11 +36,19 @@ public class UserController {
         return user;
     }
 
+    /*
+    需求：在根据id删除用户时，redis也删除对应的缓存数据@CacheEvict
+
+
+     */
+    @CacheEvict(cacheNames = "userCache",key = "#id")//key的生成  userCache::#id
     @DeleteMapping
     public void deleteById(Long id){
         userMapper.deleteById(id);
     }
 
+    //allEntries = true:以cacheNames开头的所有的键，全部删除（userCache::*）
+    @CacheEvict(cacheNames = "userCache",allEntries = true)//key的生成  userCache::#id
 	@DeleteMapping("/delAll")
     public void deleteAll(){
         userMapper.deleteAll();