使用Jquery+Ajax+Json如何实现分页显示附JAVA+JQuery实现异步分页

转载  2015-10-21   投稿：mrr  

本文给大家介绍基于jquery+ajax+json实现数据分页显示，以及JAVA+JQuery实现异步分页，本文代码简单易懂，非常具有参考价值，感兴趣的朋友一起学习吧

先给大家展示下运行效果图：

 1.后台action产生json数据。

List blackList = blackService.getBlackInfoList(mobileNum, gatewayid, startDate, endDate); int totalRows = blackList.size(); StringBuffer sb = new StringBuffer(); sb.append("{\"totalCount\":\""+totalRows+"\","); sb.append("\"jsonRoot\":["); for (int i=0;i<blackList.size();i++) { LBlack blackInfo = (LBlack)blackList.get(i); sb.append("{\"id\":\""+ blackInfo.getId()); sb.append("\","); sb.append("\"mobile\":\""+ blackInfo.getMobile()); sb.append("\","); sb.append("\"province\":\""+ blackInfo.getProvince()); sb.append("\","); sb.append("\"gateway\":\""+ blackInfo.getGateway()); sb.append("\","); sb.append("\"insertTime\":\""+ blackInfo.getInsertTime()); sb.append("\","); sb.append("\"remark\":\""+ blackInfo.getRemark()); sb.append("\""); sb.append("},"); } sb.deleteCharAt(sb.lastIndexOf(",")); // 删去最后一个逗号 sb.append("]}"); HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/plain"); response.getWriter().print(sb);

   2.struts.xml相关配置

<action method="blackList"> <!--plaintext用于显示页面原始代码的结果类型--> <result type="plainText"> <param>UTF-8</param> <param>/WEB-INF/jsp/manage/black.jsp</param> </result> </action>

3.js获取json数据分页显示

function getJSONData(pn) { // alert(pn); $.getJSON("blackList.ce", function(data) { var totalCount = data.totalCount; // 总记录数 var pageSize = 10; // 每页显示几条记录 var pageTotal = Math.ceil(totalCount / pageSize); // 总页数 var startPage = pageSize * (pn - 1); var endPage = startPage + pageSize - 1; var $ul = $("#json-list"); $ul.empty(); for (var i = 0; i < pageSize; i++) { $ul.append('<li></li>'); } var dataRoot = data.jsonRoot; if (pageTotal == 1) { // 当只有一页时 for (var j = 0; j < totalCount; j++) { $(".li-tag").eq(j).append("<span><input type='checkbox' value='"+parseInt(j + 1)+"'/></span>") .append("<span>" + parseInt(j + 1) + "</span>").append("<span>" + dataRoot[j].mobile + "</span>").append("<span>" + dataRoot[j].province + "</span>").append("<span>" + dataRoot[j].gateway + "</span>").append("<span>" + dataRoot[j].insertTime + "</span>").append("<span>" + dataRoot[j].remark + "</span>") } } else { for (var j = startPage, k = 0; j < endPage, k < pageSize; j++, k++) { if( j == totalCount){ break; // 当遍历到最后一条记录时，跳出循环 } $(".li-tag").eq(k).append("<span><input type='checkbox' value='"+parseInt(j + 1)+"'/></span>") .append("<span>" + parseInt(j + 1) + "</span>").append("<span>" + dataRoot[j].mobile + "</span>").append("<span>" + dataRoot[j].province + "</span>").append("<span>" + dataRoot[j].gateway + "</span>").append("<span>" + dataRoot[j].insertTime + "</span>").append("<span>" + dataRoot[j].remark + "</span>") } } $(".page-count").text(pageTotal); }) } function getPage() { $.getJSON("blackList.ce", function(data) { pn = 1; var totalCount = data.totalCount; // 总记录数 var pageSize = 10; // 每页显示几条记录 var pageTotal = Math.ceil(totalCount / pageSize); // 总页数 $("#next").click(function() { if (pn == pageTotal) { alert("后面没有了"); pn = pageTotal; } else { pn++; gotoPage(pn); } }); $("#prev").click(function() { if (pn == 1) { alert("前面没有了"); pn = 1; } else { pn--; gotoPage(pn); } }) $("#firstPage").click(function() { pn = 1; gotoPage(pn); }); $("#lastPage").click(function() { pn = pageTotal; gotoPage(pn); }); $("#page-jump").click(function(){ if($(".page-num").val() <= pageTotal && $(".page-num").val() != ''){ pn = $(".page-num").val(); gotoPage(pn); }else{ alert("您输入的页码有误！"); $(".page-num").val('').focus(); } }) $("#firstPage").trigger("click"); }) } function gotoPage(pn) { // alert(pn); $(".current-page").text(pn); getJSONData(pn) } $(function() { getPage(); })

ps：JAVA+JQuery实现异步分页

最近一个项目要求实现异步分页，简单的写了一下，不好的请指出~

/** *分页类 */ public class PageBean { publicint rowCount = 0; // 总记录数 publicint currentPage = 1;// 当前页数 publicint sizePerPage = 20;// 每页显示条数 publicint pageCount = 0;// 总页数 publicString pageURL;// 请求URL publicString pageDisplay;// JSP页面显示 publicString pageStyle = "numberStyle";// 分页样式 publicint pagePreOffset = 10;// 向前偏移量 publicint pageNextOffset = 9;// 向后偏移量 publicString pageCss;// 预留 publicString getPageCss() { returnpageCss; } publicvoid setPageCss(String pageCss) { this.pageCss = pageCss; } publicString getPageStyle() { returnpageStyle; } publicvoid setPageStyle(String pageStyle) { this.pageStyle = pageStyle; } publicint getPagePreOffset() { returnpagePreOffset; } publicvoid setPagePreOffset(intpagePreOffset) { this.pagePreOffset = pagePreOffset; } publicint getPageNextOffset() { returnpageNextOffset; } publicvoid setPageNextOffset(intpageNextOffset) { this.pageNextOffset = pageNextOffset; } publicString getPageDisplay() { String nextClick=" "; String preClick=" "; String firstClick=" "; String lastClick=" "; String onChange=" onchange='ajaxpage(""+this.pageURL+ "?currentPage=" + (1)+"");return false;' "; StringBuffer pageString =new StringBuffer(); pageString.append("<div><span >"); // 数字样式 if("numberStyle".equalsIgnoreCase(this.pageStyle)) { // 如果只有一页，不需要分页 if(this.getPageCount() ==1) { // pageString.append("<strong> 1</strong> "); }else { if(this.currentPage >1) {// 如果当前页数大于1，<< <可用 pageString.append("<a "+firstClick+" title='首页' href='" + this.pageURL +"?currentPage=1'><<</a> "); pageString.append("<a "+preClick+"title='上一页' href='" + this.pageURL +"?currentPage=" + (this.currentPage -1) +"'><</a> "); }else { pageString .append("<a><<</a> "); pageString .append("<a><</a> "); } // 定义向前偏移量 intpreOffset = this.currentPage -1 > this.pagePreOffset ?this.pagePreOffset :this.currentPage -1; // 定义向后偏移量 intnextOffset = this.getPageCount() -this.currentPage >this.pageNextOffset ?this.pageNextOffset :this.getPageCount() -this.currentPage; // 循环显示链接数字，范围是从 当前页减向前偏移量 到 当前页加向后偏移量 for(int i = (this.currentPage - preOffset); i <= (this.currentPage + nextOffset); i++) { String numClick=" "; if(this.currentPage == i) {// 当前页要加粗显示 pageString .append("<strong>" + i +"</strong> "); }else { pageString.append("<a "+numClick+"href='"+ this.pageURL +"?currentPage=" + i + "'>" + i +"</a> "); } } // 如果当前页小于总页数，> >>可用 if(this.currentPage <this.getPageCount()) { pageString.append("<a "+nextClick+" title='下一页' href='" + this.pageURL +"?currentPage=" + (this.currentPage +1) +"'>></a> "); pageString.append("<a "+lastClick+"title='尾页' href='" + this.pageURL +"?currentPage=" + (this.getPageCount()) +"'>>></a> "); }else { pageString .append("<a >></a> "); pageString .append("<a>>></a> "); } pageString.append("<select "+onChange+">"+this.getOptions()+"</select>"); } }else if("normalStyle".equalsIgnoreCase(this.pageStyle)) { if(this.getPageCount() ==1) { pageString.append("<strong> 共1页</strong> "); }else { if(this.currentPage >1) { pageString.append("<a "+firstClick+" title='首页' href='" + this.pageURL +"?currentPage=1'><<</a> "); pageString.append("<a "+preClick+"title='上一页' href='" + this.pageURL +"?currentPage=" + (this.currentPage -1) +"'><</a> "); }else { pageString .append("<a><<</a> "); pageString .append("<a><</a> "); } pageString.append("<span>第"+this.currentPage+"页/"+this.pageCount+"页</span>"); if(this.currentPage <this.getPageCount()) { pageString.append("<a "+nextClick+" title='下一页' href='" + this.pageURL +"?currentPage=" + (this.currentPage +1) +"'>></a> "); pageString.append("<a "+lastClick+"title='尾页' href='" + this.pageURL +"?currentPage=" + (this.getPageCount()) +"'>>></a> "); }else { pageString .append("<a >></a> "); pageString .append("<a>>></a> "); } pageString.append("<select "+onChange+">"+this.getOptions()+"</select>"); } } pageString.append("</span></div>"); this.pageDisplay = pageString.toString(); returnpageDisplay; } publicvoid setPageDisplay(String pageDisplay) { this.pageDisplay = pageDisplay; } publicString getPageURL() { returnpageURL; } publicvoid setPageURL(String pageURL) { this.pageURL = pageURL; } publicint getPageCount() { this.pageCount =this.rowCount %this.sizePerPage ==0 ? (this.rowCount /this.sizePerPage) : (this.rowCount /this.sizePerPage) +1; returnthis.pageCount; } publicvoid setPageCount(intpageCount) { this.pageCount = pageCount; } publicint getRowCount() { returnrowCount; } publicvoid setRowCount(introwCount) { this.rowCount = rowCount; } publicint getCurrentPage() { returncurrentPage; } publicvoid setCurrentPage(intcurrentPage) { this.currentPage = currentPage; } publicint getSizePerPage() { returnsizePerPage; } publicvoid setSizePerPage(intsizePerPage) { this.sizePerPage = sizePerPage; } privateString getOptions(){ StringBuffer sb =new StringBuffer(); switch(this.sizePerPage) { case10: sb.append("<option value=10>10</option><option value=20>20</option><option value=30>30</option><option value=50>50</option><option value=100>100</option>"); break; case20: sb.append("<option value=20>20</option><option value=10>10</option><option value=30>30</option><option value=50>50</option><option value=100>100</option>"); break; case30: sb.append("<option value=30>30</option><option value=10>10</option><option value=20>20</option><option value=50>50</option><option value=100>100</option>"); break; case50: sb.append("<option value=50>50</option><option value=10>10</option><option value=20>20</option><option value=30>30</option><option value=100>100</option>"); break; case100: sb.append("<option value=100>100</option><option value=10>10</option><option value=20>20</option><option value=30>30</option><option value=50>50</option>"); break; } returnsb.toString(); } } //后台调用 PageBean page = new PageBean(); setPageInfo(list,request); public void setPageInfo(List list,HttpServletRequest request){ page.setCurrentPage(this.getCurrentPage()); if(request.getParameter("perSize")==null){ page.setSizePerPage(20);//default 20 } else{ page.setSizePerPage(Integer.valueOf(request.getParameter("perSize"))); } page.setRowCount(list.size()); //page.setPageStyle("normalStyle"); //page.setPagePreOffset(5);//default 10 //page.setPageNextOffset(4);//default 9 page.setPageURL(request.getRequestURL().toString()); } [css] view plaincopyprint? /** ** CSS */ .numberStyle,.normalStyle { text-align:left; } .numberStyle a,.normalStyle a { display: inline-block; color: #5489F1; text-decoration: none; font-size: 14px; font-weight:bold; font-family: Geneva, Arial, Helvetica, sans-serif; border: 1px solid #999; width: 20px; height: 20px; line-height: 20px; text-align: center; background-position:center; } .numberStyle strong,.normalStyle strong { display: inline-block; color: #5489F1; text-decoration: none; font-size: 14px; font-weight:bold; font-family: Geneva, Arial, Helvetica, sans-serif; border: 1px solid #999; width: 20px; height: 20px; line-height: 20px; text-align: center; background-position:center; } .numberStyle a:hover,.normalStyle a:hover{ background-color: #d0d0d0; } .normalStyle .pageinfo{ font-size: 14px; font-family: Geneva, Arial, Helvetica, sans-serif; color: #5489F1; } [javascript] view plaincopyprint? /** ** JS import jquery.js before call function */ function ajaxpage(action){ action=action+"&perSize="+$("#pageSelect").val(); $.ajax( { type : "POST", url : action, success : function(msg) { //回调函数，后台拼接字符串返回msg //删除原有数据，添加新数据 //比如：$("#displayTable>thead").nextAll().remove();$("#displayTable").append(msg); } }); }

以上就是本文给大家介绍的使用Jquery+Ajax+Json如何实现分页显示附JAVA+JQuery实现异步分页，希望对大家有所帮助。

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