最近做的一些小项目中，都有用到分页，需要自己去搞。就把整个分页实现整理下吧，方便自己也方便他人。

前台

1.引入paging.js

//分页，页码导航,要求参数为一个对象function createPageNav(opt) { opt= opt || {}; var $container = opt.$container || null, //必需，页码容器，请确保这个容器只用来存放页码导航 pageCount = Number(opt.pageCount) || 0, //必需，页码总数 currentNum = Number(opt.currentNum) || 1, //选填，当前页码 maxCommonLen = Number(opt.maxCommonLen)|| 10, //选填，普通页码的最大个数 className = opt.className || "pagination",//选填，分页类型：pagination或pager等 preText = opt.preText || "上一页", //选填，上一页文字显示，适用于只有前后页按钮的情况 nextText = opt.nextText || "下一页", //选填，下一页文字，同上 firstText = opt.firstText || "首页", lastText = opt.lastText || "末页", hasFirstBtn = opt.hasFirstBtn === false ? false : true, hasLastBtn = opt.hasLastBtn === false ? false : true, hasPreBtn = opt.hasPreBtn === false ? false : true, hasNextBtn = opt.hasNextBtn === false ? false : true, hasInput = opt.hasInput === false ? false : true, hasCommonPage= opt.hasCommonPage === false ? false : true,//选填，是否存在普通页 beforeFun = opt.beforeFun || null, //选填，页码跳转前调用的函数，可通过返回false来阻止跳转，可接收目标页码参数 afterFun = opt.afterFun || null, //选填，页码跳转后调用的函数，可接收目标页码参数 noPageFun = opt.noPageFun || null; //选填，页码总数为0时调用的函数 //当前显示的最小页码，用于计算起始页码，直接容器,当前页，前，后，首，末，输入框 var minNum=1,changeLen,$parent,$currentPage,$preBtn,$nextBtn,$firstBtn,$lastBtn,$input; //容器 if (!$container || $container.length != 1){ console.log("分页容器不存在或不正确"); return false; } //总页数 if(pageCount <= 0){ if(noPageFun) noPageFun(); return false; } //当前页 if (currentNum < 1) currentNum = 1; else if (currentNum > pageCount) currentNum = pageCount; //普通页码的最大个数，起始页算法限制，不能小于3 if(maxCommonLen<3) maxCommonLen=3; //跳转页响应长度，用于计算起始页码 if(maxCommonLen>=8) changeLen=3; else if(maxCommonLen>=5) changeLen=2; else changeLen=1; $container.hide(); _initPageNav(); $container.show(); function _initPageNav(){ var initStr = []; initStr.push('<nav><ul class="'+ className +'" onselectstart="return false">'); if(hasFirstBtn)initStr.push('<li class="first-page" value="1"><span>'+ firstText +'</span></li>'); if(hasPreBtn) initStr.push('<li class="pre-page" value="' + (currentNum - 1) + '"><span>'+ preText +'</span></li>'); if(hasNextBtn) initStr.push('<li class="next-page" value="' + (currentNum + 1) + '"><span>'+ nextText +'</span></li>'); if(hasLastBtn) initStr.push('<li class="last-page" value="' + pageCount + '"><span>'+ lastText +'</span></li>'); if(hasInput) initStr.push('<div class="input-page-div">当前第<input type="text" maxlength="6" value="' + currentNum + '" />页，共<span>' + pageCount + '</span>页<button type="button" class="btn btn-xs input-btn-xs">确定</button></div>'); initStr.push('</ul></nav>'); $container.html(initStr.join("")); //初始化变量 $parent=$container.children().children(); if(hasFirstBtn) $firstBtn = $parent.children("li.first-page"); if(hasPreBtn) $preBtn = $parent.children("li.pre-page"); if(hasNextBtn) $nextBtn = $parent.children("li.next-page"); if(hasLastBtn) $lastBtn = $parent.children("li.last-page"); if(hasInput){ $input = $parent.find("div.input-page-div>input"); $parent.find("div.input-page-div>button").click(function(){ _gotoPage($input.val()); }); } //初始化功能按钮 _buttonToggle(currentNum); //生成普通页码 if(hasCommonPage) { _createCommonPage(_computeStartNum(currentNum), currentNum); } //绑定点击事件 $parent.on("click", "li",function () { var $this=$(this); if ($this.is("li") && $this.attr("value")){ if(!$this.hasClass("disabled") && !$this.hasClass("active")){ _gotoPage($this.attr("value")); } } }); } //跳转到页码 function _gotoPage(targetNum) { targetNum=_formatNum(targetNum); if (targetNum == 0 || targetNum == currentNum) return false; // 跳转前回调函数 if (beforeFun && beforeFun(targetNum) === false) return false; //修改值 currentNum=targetNum; if(hasInput) $input.val(targetNum); if(hasPreBtn) $preBtn.attr("value", targetNum - 1); if(hasNextBtn) $nextBtn.attr("value", targetNum + 1); //修改功能按钮的状态 _buttonToggle(targetNum); // 计算起始页码 if(hasCommonPage) { var starNum = _computeStartNum(targetNum); if (starNum == minNum) {// 要显示的页码是相同的 $currentPage.removeClass("active"); $currentPage = $parent.children("li.commonPage").eq(targetNum - minNum).addClass("active"); } else {// 需要刷新页码 _createCommonPage(starNum, targetNum); } } // 跳转后回调函数 if (afterFun) afterFun(targetNum); } //整理目标页码的值 function _formatNum(num){ num = Number(num); if(isNaN(num)) num=0; else if (num <= 0) num = 1; else if (num > pageCount) num = pageCount; return num; } //功能按钮的开启与关闭 function _buttonToggle(current){ if (current == 1) { if(hasFirstBtn) $firstBtn.addClass("disabled"); if(hasPreBtn) $preBtn.addClass("disabled"); } else { if(hasFirstBtn) $firstBtn.removeClass("disabled"); if(hasPreBtn) $preBtn.removeClass("disabled"); } if (current == pageCount) { if(hasNextBtn) $nextBtn.addClass("disabled"); if(hasLastBtn) $lastBtn.addClass("disabled"); } else { if(hasNextBtn) $nextBtn.removeClass("disabled"); if(hasLastBtn) $lastBtn.removeClass("disabled"); } } //计算当前显示的起始页码 function _computeStartNum(targetNum) { var startNum; if (pageCount <= maxCommonLen) startNum = 1; else { if ((targetNum - minNum) >= (maxCommonLen-changeLen)) {//跳转到靠后的页码 startNum = targetNum - changeLen; if ((startNum + maxCommonLen-1) > pageCount) startNum = pageCount - (maxCommonLen-1);// 边界修正 } else if ((targetNum - minNum) <= (changeLen-1)) {//跳转到靠前的页码 startNum = targetNum - (maxCommonLen-changeLen-1); if (startNum <= 0) startNum = 1;// 边界修正 } else {// 不用改变页码 startNum = minNum; } } return startNum; } //生成普通页码 function _createCommonPage(startNum, activeNum) { var initStr = []; for (var i = 1,pageNum=startNum; i <= pageCount && i <= maxCommonLen; i++ , pageNum++) { initStr.push('<li class="commonPage" value="' + pageNum + '"><a href="javascript:" rel="external nofollow" >' + pageNum + '</a></li>'); } $parent.hide(); $parent.children("li.commonPage").remove(); if(hasPreBtn) $preBtn.after(initStr.join("")); else if(hasFirstBtn) $firstBtn.after(initStr.join("")); else $parent.prepend(initStr.join("")); minNum = startNum; $currentPage = $parent.children("li.commonPage").eq(activeNum-startNum).addClass("active"); $parent.show(); }}

2.引入paging.css

ul.pagination>li>span,ul.pagination>li>a,ul.pagination>li.active>a,ul.pager>li>span{cursor: pointer;}.input-page-div>input{width:5em;height:1.8em;margin:0.4em 0.2em 0.2em 0.2em;text-align: center;}.input-page-div>.input-btn-xs{margin-left:1em;font-size: 1em;width:3em;background-color: #337ab7;color:#fff;}.input-page-div{display: inline-block;margin-left:1em;}

3.页面中添加一个div容器

<div id="paging"></div>

4.js中添加一段代码

createPageNav({ $container : $("#paging"), pageCount : data.pages, currentNum : data.pageNum, afterFun : function(num){ getResult(num,10); } });

例：

function getResult(pageNum,pageSize){ $.ajax({ type: "GET", url: "../../metrics.do?type=8&pageNum="+pageNum+"&pageSize="+pageSize, data: {}, dataType: "json", success: function(data){ list = data.data; createPageNav({ $container : $("#paging"), pageCount : data.pages, currentNum : data.pageNum, afterFun : function(num){ getResult(num,10); } }); createList(data.data);// createSelect(data); console.info(data); } });}

后台

5.引入pagehelper依赖

<!-- yuruixin add mybatis paging --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>4.1.6</version> </dependency>

6.service层添加如下代码

//pageSize=0时，查询所有PageHelper.startPage(pageNum, pageSize);Page<ExtractMetrics> extractMetrics = extractMetricsMapper.selectByCondition(extractMetric,pageNum,pageSize);

7.controller层添加如下代码

Map<String,Object> map = new HashMap<String,Object>();//查询页数map.put("pageNum", extractMetrics.getPageNum()); //每页条数map.put("pageSize", extractMetrics.getPageSize()); //总条数map.put("total", extractMetrics.getTotal()); //总页数map.put("pages", extractMetrics.getPages());map.put("data", extractMetrics.getResult());

至此，bootstrap与pagehelper实现分页流程完毕

效果如下：

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。