1.簡單思路

這是最常見的分頁格式，分析一下我們需要傳什么數據給前端吧！ 首先是左邊下面的總共幾條記錄，然后是右邊的當前頁面，然后就是一些你所需要展示的數據。對了每頁顯示多少條是不也得控制下，下面的顯示頁碼數,這里顯示了五條(1，2，3，4，5)，你也可以選擇只顯示三條(1，2，3)。

2.構造傳給頁面的POJO

packagecom.Dy.Pojo;importjava.util.List;/*** 分頁信息

*

*@author小丁同學

**/

public class PageInfo{//你頁面需要展示的集合

private Listlist;//顯示的總記錄數

privateInteger totalNum;//總頁數

privateInteger totalPage;//當前頁

privateInteger currentPage;//每頁顯示的數目 (為了防止硬編碼可以寫在配置文件中)

privateInteger pageSize;//下面兩個就是顯示的頁碼 比如start為1 pageNo為5，那么顯示的頁碼數就是1，2，3，4，5

privateInteger start;privateInteger pageNo;publicPageInfo(Integer totalNum, Integer currentPage, Integer pageSize, Integer pageNo) {this.totalNum =totalNum;this.currentPage =currentPage;this.pageSize =pageSize;/*this.pageNo = pageNo;*/

//計算總頁數

if (totalNum % this.pageSize == 0)this.totalPage = totalNum / this.pageSize;else

this.totalPage = (totalNum / this.pageSize) + 1;this.start =currentPage;//比如設置了5條，如果總頁數都只有四條，那么肯定都是全是顯示哦

if (pageNo+currentPage-1>=this.totalPage)this.pageNo =pageNo;else this.pageNo = this.totalPage-currentPage+1;

}public ListgetList() {returnlist;

}public void setList(Listlist) {this.list =list;

}publicInteger getTotalNum() {returntotalNum;

}public voidsetTotalNum(Integer totalNum) {this.totalNum =totalNum;

}publicInteger getTotalPage() {returntotalPage;

}public voidsetTotalPage(Integer totalPage) {this.totalPage =totalPage;

}publicInteger getCurrentPage() {returncurrentPage;

}public voidsetCurrentPage(Integer currentPage) {this.currentPage =currentPage;

}publicInteger getPageSize() {returnpageSize;

}public voidsetPageSize(Integer pageSize) {this.pageSize =pageSize;

}publicInteger getStart() {returnstart;

}public voidsetStart(Integer start) {this.start =start;

}publicInteger getPageNo() {returnpageNo;

}public voidsetPageNo(Integer pageNo) {this.pageNo =pageNo;

}

}

packagecom.Dy.Pojo;public classUser {privateInteger id;privateString username;privateString password;publicInteger getId() {returnid;

}public voidsetId(Integer id) {this.id =id;

}publicString getUsername() {returnusername;

}public voidsetUsername(String username) {this.username =username;

}publicString getPassword() {returnpassword;

}public voidsetPassword(String password) {this.password =password;

}

}

3.構造Dao(可以使用逆向工程，這里為了展示就手打接口和xml了)

packagecom.Dy.Mapper;importjava.util.List;importcom.Dy.Pojo.User;public interfaceUserMapper {public ListfindAllUsers();

}

/p>

PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"

"http://mybatis.org/dtd/mybatis-3-mapper.dtd">

select * from user

4.構造Service

packagecom.Dy.Service;importcom.Dy.Pojo.PageInfo;importcom.Dy.Pojo.User;public interfaceUserService {public PageInfofindAllUsersByPage(Integer currentPage,Integer pageSize);

}

packagecom.Dy.Service;importjava.util.List;importorg.springframework.beans.factory.annotation.Autowired;importorg.springframework.stereotype.Service;importcom.Dy.Mapper.UserMapper;importcom.Dy.Pojo.PageInfo;importcom.Dy.Pojo.User;

@Servicepublic class UserServiceImpl implementsUserService {

@AutowiredprivateUserMapper usermapper;

@Overridepublic PageInfofindAllUsersByPage(Integer currentPage, Integer pageSize) {

List users =usermapper.findAllUsers();

PageInfo pageInfo = new PageInfo<>(users.size(), currentPage, pageSize, 5);//判斷是否是最后一頁,如果最后一頁就顯示最后一頁的幾條，不是最后一頁就顯示pageSize條

if(currentPage==pageInfo.getTotalPage())

pageInfo.setList(users.subList((currentPage-1)*pageSize, users.size()));elsepageInfo.setList(users.subList((currentPage-1)*pageSize, (currentPage-1)*pageSize+pageSize));returnpageInfo;

}

}

5.JSP部分

?${i }?

總結

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