[后端] 微服务添加获取&更新微信小程序access_token相关逻辑

backend/microservice-common/src/main/java/com/cxyxiaomo/epp/common/pojo/Setting.java

@@ -0,0 +1,20 @@
+package com.cxyxiaomo.epp.common.pojo;
+
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.experimental.Accessors;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+// 数据库关系映射
+
+@Data
+@NoArgsConstructor
+@Accessors(chain = true) // 链式写法
+// 微服务必须要实现Serializable
+public class Setting implements Serializable {
+    private String key;
+    private String value;
+    private LocalDateTime time;
+}