OTA列表和全车型列表

2023-08-17 20:07:54 +08:00
parent 2a65a5e035
commit 3c1d347e74
6 changed files with 190 additions and 28 deletions
@@ -0,0 +1,40 @@
+package com.jero.common.util;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @description
+ * @date 2022/12/7 14:02
+ * @auth zhn
+ */
+public class PageUtil {
+    public static Page getPages(Integer currentPage, Integer pageSize, List<?> entityList){
+        Page page =new Page();
+        if(entityList==null){
+            return null;
+        }
+        int size = entityList.size();
+        if(pageSize > size){
+            pageSize = size;
+        }
+        if(pageSize!=0){
+            //求出最⼤页数，防⽌currentPage越界
+            int maxPage = size % pageSize ==0? size / pageSize : size / pageSize +1;
+            if(currentPage > maxPage){
+                currentPage = maxPage;
+            }
+        }
+        //当前页第⼀条数据的下标
+        int curIdx = currentPage >1?(currentPage -1)* pageSize :0;
+        List pageList =new ArrayList();
+        //将当前页的数据放进pageList
+        for(int i =0; i < pageSize && curIdx + i < size; i++){
+            pageList.add(entityList.get(curIdx + i));
+        }
+        page.setCurrent(currentPage).setSize(pageSize).setTotal(entityList.size()).setRecords(pageList);
+        return page;
+    }
+}