首先我們需要一個工具類Page類來表達：
import java.util.List;
public class Page
{
private int everyPage = 10; //每頁顯示的條數
private int totalCount; //總共需要顯示的條數
private int totalPage; //總共需要顯示的頁數
private int beginPage = 1; //開始的頁數
private boolean hasPrePage; //是否有上一頁
private boolean hasNextPage; //是否有下一頁
private List list; //用來存儲的數據結構（統一爲一個list）
/**
* 初始化：當獲得了總共需要顯示的條數後即可執行這個方法
*/
public void init(){
int totalPage = totalCount % everyPage == 0 ? totalCount / everyPage : totalCount / everyPage + 1;
this.setTotalPage(totalPage);
this.setHasNextPage(beginPage >= totalCount);
this.setHasPrePage(beginPage <= 1);
}
public int getEveryPage()
{
return this.everyPage;
}
public void setEveryPage(int everyPage)
{
this.everyPage = everyPage;
}
public int getTotalCount()
{
return this.totalCount;
}
public void setTotalCount(int totalCount)
{
this.totalCount = totalCount;
}
public int getTotalPage()
{
return this.totalPage;
}
public void setTotalPage(int totalPage)
{
this.totalPage = totalPage;
}
public int getBeginPage()
{
return this.beginPage;
}
public void setBeginPage(int beginPage)
{
this.beginPage = beginPage;
}
public boolean isHasPrePage()
{
return this.hasPrePage;
}
public void setHasPrePage(boolean hasPrePage)
{
this.hasPrePage = hasPrePage;
}
public boolean isHasNextPage()
{
return this.hasNextPage;
}
public void setHasNextPage(boolean hasNextPage)
{
this.hasNextPage = hasNextPage;
}
public List getList()
{
return this.list;
}
public void setList(List list)
{
this.list = list;
}
}假設你有這麼一個類Microblog，其結構如下：
public class Microblog {
private Integer id;
/**
* This field was generated by MyBatis Generator.
* This field corresponds to the database column microblog.userId
* 這條微博現在屬於誰
* @mbggenerated
*/
private Integer userid;
/**
* This field was generated by MyBatis Generator.
* This field corresponds to the database column microblog.content
* 這條微博的內容
* @mbggenerated
*/
private String content;
/**
* This field was generated by MyBatis Generator.
* This field corresponds to the database column microblog.time
* 這條微博現在發佈的時間
* @mbggenerated
*/
private Date time;
/**
* 這條微博是否是轉載的，是轉載的爲true，否則爲false
*/
private Boolean isForward;
private Integer sourceuserid;
/**
* 這條博客的原創博客的id(原創的話即爲0)
*/
private Integer sourceMicroblogId;
/**
* 你轉發的那條微博（不一定是原創的那一條，原創的話即爲0）
*/
private Integer forwardMicroblogId;
/*接下來就是相應的get和set方法，博主在此省略*/
}接下來看看底層如何獲取這些數據，（假設你此時需要取得一條微博的所有轉發微博）xml文件對應的mybatis代碼爲：
<select id="selectPageByForwardMicroblogId" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
select
<include refid="Base_Column_List" />
from microblog
where forwardMicroblogId = #{0,jdbcType=INTEGER} order by time desc limit #{1,jdbcType=INTEGER},#{2,jdbcType=INTEGER}
</select>其對應接口中的方法聲明爲：（接口爲MicroblogMapper）
/**
* 查看當前頁面的轉發評論
* @param forwardMicroblogId
* @param beginPage 從第幾個開始尋找幾個，這個是從0開始的（並不是第幾頁）
* @param everyPage 一頁多少條記錄
* @return
*/
List<Microblog> selectPageByForwardMicroblogId(Integer forwardMicroblogId, int beginPage, int everyPage);Service層的寫法爲：
List<Microblog> microblogs = this.microblogMapper.selectPageByForwardMicroblogId(
microblog.getForwardMicroblogId(), (page.getBeginPage() - 1)*page.getEveryPage(), page.getEveryPage());
int totalCount = this.microblogMapper.countByForwardMicroblogId(microblog.getForwardMicroblogId());
page.setList(microblogs);
page.setTotalCount(totalCount);
page.init();Controller層的寫法：
@RequestMapping("user/microblog_showForwardMore")
public String showForwardMore(Microblog microblog, Page page, ModelMap modelMap){
page = this.microblogService.getTenByForward(microblog,page);
Microblog mic = this.microblogService.findOne(microblog.getForwardMicroblogId());
modelMap.addAttribute("microblog", mic);
modelMap.addAttribute("Page", page);
modelMap.addAttribute("partSelect",1);
return "/user/showMore";
}接下來，你再將page傳給頁面，定義爲“Page”（博主並沒有轉化爲JSON數據，因爲暫時還沒有接觸，但其實變成JSON更好，因爲這樣在使用前臺的框架時可以更加方便並且可以更加通用，假如你的前臺並不是jsp），其使用大致爲
<c:forEach var="m" items="${Page.list}">
<div style="border: 1px solid black">
<a href="user_scan.action?id=${m.sourceUser.id}">@${m.sourceUser.name}</a>：${m.forwardRemark }
<c:forEach items="${m.forwardRemarks}" var="r">
<a href="user_scan.action?id=${r.userId}">@${r.userName }</a>${r.remark }
</c:forEach>
time:${m.getNTime()}<br /> <a href="#"
οnclick="prom(${m.sourceMicroblogId==0?m.id:m.sourceMicroblogId }, ${m.id})">
(轉發${m.getForwards() }) </a> <br />
</div>
</c:forEach><a
href="microblog_showForwardMore.action?forwardMicroblogId=${Microblog.forwardMicroblogId }&sourceMicroblogId=${Microblog.sourceMicroblogId}&beginPage=1"><input
type="button" class="className" value=" 首 頁 " /> </a>
<c:choose>
<c:when test="${Page.beginPage == 1}">
<input type="button" class="className" style="width: 55px;"
value="上一頁" />
</c:when>
<c:otherwise>
<a
href="microblog_showForwardMore.action?forwardMicroblogId=${Microblog.forwardMicroblogId }&sourceMicroblogId=${Microblog.sourceMicroblogId}&beginPage=${Page.beginPage-1}"><input
type="button" class="className" style="width: 55px;" value="上一頁" /></a>
</c:otherwise>
</c:choose>
共
${Page.totalCount }條記錄,
每頁
${Page.getEveryPage() }條
${Page.beginPage }/${Page.totalPage}
<c:choose>
<c:when test="${Page.beginPage >= Page.totalPage}">
<input type="button" class="className" style="width: 55px;"
value="下一頁" />
</c:when>
<c:otherwise>
<a
href="microblog_showForwardMore.action?forwardMicroblogId=${Microblog.forwardMicroblogId }&sourceMicroblogId=${Microblog.sourceMicroblogId}&beginPage=${Page.beginPage+1}"><input
type="button" class="className" style="width: 55px;" value="下一頁" /></a>
</c:otherwise>
</c:choose>
<a
href="microblog_showForwardMore.action?forwardMicroblogId=${Microblog.forwardMicroblogId }&sourceMicroblogId=${Microblog.sourceMicroblogId}&beginPage=${Page.totalPage } "> <input
type="button" class="className" value="尾 頁" /></a>點擊首頁這些按鈕時，改變的只有一個beginPage屬性而已，請謹記。
總結：博主最開始的分頁是在利用struts2寫的，當時看了一個晚上，結果寫的時候還是磕磕絆絆，但是當你真正實現了一個之後，再看別人寫的就不再那麼困難了，所以“千里之行始於足下”，希望大家能早日完成自己的功能！