后台返回数据统一为CommonReturnType

bookshelfplus/src/main/java/plus/bookshelf/Common/Response/CommonReturnType.java

@@ -0,0 +1,26 @@
+package plus.bookshelf.Common.Response;
+
+import lombok.Data;
+
+@Data
+public class CommonReturnType {
+    // 表明对应请求的返回处理结果 "success" 或 "fail"
+    private String Status;
+
+    // 若 status == "success" 则data内返回前端需要的JSON数据
+    // 若 status == "fail" 则data内使用通用的错误码格式
+    private Object Data;
+
+    // 定义一个通用的创建方法
+    public static CommonReturnType create(Object result) {
+        return CommonReturnType.create(result, CommonReturnTypeStatus.SUCCESS);
+    }
+
+    public static CommonReturnType create(Object result, CommonReturnTypeStatus status) {
+        CommonReturnType type = new CommonReturnType();
+        type.setData(result);
+        type.setStatus(status.toString());
+        return type;
+    }
+}
+