重构。

src/main/java/xyz/zhouxy/plusone/commons/util/PageDTO.java

@@ -0,0 +1,40 @@
+package xyz.zhouxy.plusone.commons.util;
+
+import java.util.List;
+
+import lombok.Setter;
+import lombok.ToString;
+
+/**
+ * 返回分页查询的结果
+ *
+ * @param <T> 内容列表的元素类型
+ *
+ * @author <a href="https://gitee.com/zhouxy108">ZhouXY</a>
+ * @see PagingAndSortingQueryParams
+ */
+@ToString
+@Setter
+public class PageDTO<T> {
+
+    private Long total;
+    private List<T> content;
+
+    private PageDTO(List<T> content, Long total) {
+        this.content = content;
+        this.total = total;
+    }
+
+    public static <T> PageDTO<T> of(List<T> content, Long total) {
+        return new PageDTO<>(content, total);
+    }
+
+    public Long getTotal() {
+        return total;
+    }
+
+    public List<T> getContent() {
+        return content;
+    }
+
+}