分页

sckw-common/sckw-common-core/src/main/java/com/sckw/core/model/page/PageRes.java

@@ -2,6 +2,7 @@ package com.sckw.core.model.page;
 
 import com.github.pagehelper.PageInfo;
 
+import java.util.ArrayList;
 import java.util.List;
 
 /**
@@ -34,6 +35,15 @@ public class PageRes<T> {
     protected List<T> list;
 
     public PageRes() {
+        this.list = new ArrayList<>();
+    }
+
+    public PageRes(int page, int pageSize, long size, int pages, List<T> list) {
+        this.page = page;
+        this.pageSize = pageSize;
+        this.size = size;
+        this.pages = pages;
+        this.list = list;
     }
 
     public PageRes(PageInfo<T> pageInfo) {
@@ -44,6 +54,39 @@ public class PageRes<T> {
         this.list = pageInfo.getList();
     }
 
+    public PageRes(PageInfo<T> pageInfo, List<T> list) {
+        this.page = pageInfo.getPageNum();
+        this.pageSize = pageInfo.getPageSize();
+        this.size = pageInfo.getTotal();
+        this.pages = pageInfo.getPages();
+        this.list = list;
+    }
+
+    public PageRes(List<T> list) {
+        PageInfo<T> pageInfo = new PageInfo<>(list);
+        this.page = pageInfo.getPageNum();
+        this.pageSize = pageInfo.getPageSize();
+        this.size = pageInfo.getTotal();
+        this.pages = pageInfo.getPages();
+        this.list = pageInfo.getList();
+    }
+
+    /**
+     * 构建返回数据
+     * @param pagInfo pageHelper的分页对象
+     * @param list    实际返回的数据集
+     * @return
+     */
+    public static <T> PageRes<T> build(PageInfo<?> pagInfo, List<T> list) {
+        PageRes<T> tPageRes = new PageRes<>();
+        tPageRes.setPage(pagInfo.getPageNum());
+        tPageRes.setPageSize(pagInfo.getPageSize());
+        tPageRes.setSize(pagInfo.getTotal());
+        tPageRes.setPages(pagInfo.getPages());
+        tPageRes.setList(list);
+        return tPageRes;
+    }
+
     public void setPage(int page) {
         this.page = page;
     }