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crmeb/src/main/java/com/common/CommonPage.java

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+package com.common;
+import com.constants.Constants;
+import lombok.Data;
+import org.springframework.beans.BeanUtils;
+import org.springframework.data.domain.Page;
+import com.github.pagehelper.PageInfo;
+
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Data
+public class CommonPage<T> {
+    private Integer page = Constants.DEFAULT_PAGE;
+    private Integer limit = Constants.DEFAULT_LIMIT;
+    private Integer totalPage = 0;
+    private Long total = 0L ;
+    private List<T> list = new ArrayList<>();
+
+
+    /**
+     * 将PageHelper分页后的list转为分页信息
+     */
+    public static <T> CommonPage<T> restPage(List<T> list) {
+        CommonPage<T> result = new CommonPage<T>();
+        PageInfo<T> pageInfo = new PageInfo<T>(list);
+        result.setTotalPage(pageInfo.getPages());
+        result.setPage(pageInfo.getPageNum());
+        result.setLimit(pageInfo.getPageSize());
+        result.setTotal(pageInfo.getTotal());
+        result.setList(pageInfo.getList());
+        return result;
+    }
+
+    /**
+     * 将SpringData分页后的list转为分页信息
+     */
+    public static <T> CommonPage<T> restPage(Page<T> pageInfo) {
+        CommonPage<T> result = new CommonPage<T>();
+        result.setTotalPage(pageInfo.getTotalPages());
+        result.setPage(pageInfo.getNumber());
+        result.setLimit(pageInfo.getSize());
+        result.setTotal(pageInfo.getTotalElements());
+        result.setList(pageInfo.getContent());
+        return result;
+    }
+
+    /**
+     * 将PageHelper分页后的 PageInfo 转为分页信息
+     */
+    public static <T> CommonPage<T> restPage(PageInfo<T> pageInfo) {
+        CommonPage<T> result = new CommonPage<T>();
+        result.setTotalPage(pageInfo.getPages());
+        result.setPage(pageInfo.getPageNum());
+        result.setLimit(pageInfo.getPageSize());
+        result.setTotal(pageInfo.getTotal());
+        result.setList(pageInfo.getList());
+        return result;
+    }
+
+    /**
+     * 对象A复制对象B的分页信息 //TODO 多次数据查询导致分页数据异常解决办法
+     */
+    public static <T> PageInfo<T> copyPageInfo(com.github.pagehelper.Page originPageInfo, List<T> list) {
+        PageInfo<T> pageInfo = new PageInfo<>(list);
+        BeanUtils.copyProperties(originPageInfo, pageInfo, "list");
+        return pageInfo;
+    }
+}