package pers.kangxu.datautils.common;

 import java.io.Serializable;

 import java.util.List;

 /**

  *

  * <b> 分页通用类 </b>

  *

  * @author kangxu

  * @param <T>

  *

  */

 public class Pager<T> implements Serializable {

     /**

      *

      */

     private static final long serialVersionUID = 4542617637761955078L;

     /**

      * currentPage 当前页

      */

     private int currentPage = 1;

     /**

      * pageSize 每页大小

      */

     private int pageSize = 10;

     /**

      * pageTotal 总页数

      */

     private int pageTotal;

     /**

      * recordTotal 总条数

      */

     private int recordTotal = 0;

     /**

      * previousPage 前一页

      */

     private int previousPage;

     /**

      * nextPage 下一页

      */

     private int nextPage;

     /**

      * firstPage 第一页

      */

     private int firstPage = 1;

     /**

      * lastPage 最后一页

      */

     private int lastPage;

     /**

      * content 每页的内容

      */

     private List<T> content;

     // 以下set方式是需要赋值的

     /**

      * 设置当前页 <br>

      *

      * @author kangxu

      *

      * @param currentPage

      */

     public void setCurrentPage(int currentPage) {

         this.currentPage = currentPage;

     }

     /**

      * 设置每页大小,也可以不用赋值,默认大小为10条 <br>

      *

      * @author kangxu

      *

      * @param pageSize

      */

     public void setPageSize(int pageSize) {

         this.pageSize = pageSize;

     }

     /**

      * 设置总条数,默认为0 <br>

      *

      * @author kangxu

      *

      * @param recordTotal

      */

     public void setRecordTotal(int recordTotal) {

         this.recordTotal = recordTotal;

         otherAttr();

     }

     /**

      * 设置分页内容 <br>

      *

      * @author kangxu

      *

      * @param content

      */

     public void setContent(List<T> content) {

         this.content = content;

     }

     /**

      * 设置其他参数

      *

      * @author kangxu

      *

      */

     public void otherAttr() {

         // 总页数

         this.pageTotal = this.recordTotal % this.pageSize > 0 ? this.recordTotal / this.pageSize + 1 : this.recordTotal / this.pageSize;

         // 第一页

         this.firstPage = 1;

         // 最后一页

         this.lastPage = this.pageTotal;

         // 前一页

         if (this.currentPage > 1) {

             this.previousPage = this.currentPage - 1;

         } else {

             this.previousPage = this.firstPage;

         }

         // 下一页

         if (this.currentPage < this.lastPage) {

             this.nextPage = this.currentPage + 1;

         } else {

             this.nextPage = this.lastPage;

         }

     }

     // 放开私有属性

     public int getCurrentPage() {

         return currentPage;

     }

     public int getPageSize() {

         return pageSize;

     }

     public int getPageTotal() {

         return pageTotal;

     }

     public int getRecordTotal() {

         return recordTotal;

     }

     public int getPreviousPage() {

         return previousPage;

     }

     public int getNextPage() {

         return nextPage;

     }

     public int getFirstPage() {

         return firstPage;

     }

     public int getLastPage() {

         return lastPage;

     }

     public List<T> getContent() {

         return content;

     }

     @Override

     public String toString() {

         return "Pager [currentPage=" + currentPage + ", pageSize=" + pageSize

                 + ", pageTotal=" + pageTotal + ", recordTotal=" + recordTotal

                 + ", previousPage=" + previousPage + ", nextPage=" + nextPage

                 + ", firstPage=" + firstPage + ", lastPage=" + lastPage

                 + ", content=" + content + "]";

     }

 }

 package pers.kangxu.datautils.utils;

 import java.util.ArrayList;

 import java.util.List;

 import pers.kangxu.datautils.common.Pager;

 /**

  * 分页数据测试

  * <b>

  *

  * </b>

  * @author kangxu

  *

  */

 public class PagerTester {

     public static void main(String[] args) {

         Pager<String> pager = new Pager<String>();

         List<String> content = new ArrayList<String>();

         content.add("str1");

         content.add("str2");

         content.add("str3");

         content.add("str4");

         content.add("str5");

         content.add("str6");

         content.add("str7");

         content.add("str8");

         content.add("str9");

         content.add("str10");

         pager.setCurrentPage(1);

         pager.setPageSize(10);

         pager.setRecordTotal(62);

         pager.setContent(content);

         System.out.println(pager);

     }

 }