苍穹外卖--springCache-@CachePut使用

springcache-demo - inmind/src/main/java/com/inmind/controller/UserController.java

@@ -0,0 +1,53 @@
+package com.inmind.controller;
+
+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.CachePut;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/user")
+@Slf4j
+public class UserController {
+
+    @Autowired
+    private UserMapper userMapper;
+
+
+    /*
+     *
+     * 业务：在新增用户时，将用户信息缓存到redis中
+     *
+     * Spring Expression Language（SpEL）
+     *
+     */
+    @PostMapping
+//    @CachePut(cacheNames = "userCache",key = "#user.id")//如果使用springCache缓存数据，key的生成的规则：userCache::动态ID
+    @CachePut(cacheNames = "userCache",key = "#result.id")//对象导航，result就表示该方法的返回值！！！
+//    @CachePut(cacheNames = "userCache",key = "#p0.id")//p0:param0 参数列表中第一个参数
+//    @CachePut(cacheNames = "userCache",key = "#a0.id")//a0:argment0 参数列表中第一个参数
+//    @CachePut(cacheNames = "userCache",key = "#root.args[0].id")//root.args[0]:save方法的参数列表的第0个参数
+    public User save(@RequestBody User user){
+        userMapper.insert(user);
+        return user;
+    }
+
+    @DeleteMapping
+    public void deleteById(Long id){
+        userMapper.deleteById(id);
+    }
+
+	@DeleteMapping("/delAll")
+    public void deleteAll(){
+        userMapper.deleteAll();
+    }
+
+    @GetMapping
+    public User getById(Long id){
+        User user = userMapper.getById(id);
+        return user;
+    }
+
+}