Jquery+Ajax+Json如何实现分页？JAVA+JQuery异步分页教程(2)_H5之家

/** *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=" onclick='ajaxpage(""+this.pageURL+ "?currentPage=" + (this.currentPage + 1)+"");return false;' "; String preClick=" onclick='ajaxpage(""+this.pageURL+ "?currentPage=" + (this.currentPage - 1)+"");return false;' "; String firstClick=" onclick='ajaxpage(""+this.pageURL+ "?currentPage=1");return false;' "; String lastClick=" onclick='ajaxpage(""+this.pageURL+ "?currentPage=" + (this.getPageCount())+"");return false;' "; String onChange=" onchange='ajaxpage(""+this.pageURL+ "?currentPage=" + (1)+"");return false;' "; StringBuffer pageString =new StringBuffer(); pageString.append("<div class='"+ this.pageStyle +"'><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 class='pagination-first' "+firstClick+" title='首页' href='" + this.pageURL +"?currentPage=1'><<</a> "); pageString.append("<a class='pagination-prev' "+preClick+"title='上一页' href='" + this.pageURL +"?currentPage=" + (this.currentPage -1) +"'><</a> "); }else { pageString .append("<a class='pagination-first'><<</a> "); pageString .append("<a class='pagination-prev'><</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=" onclick='ajaxpage(""+this.pageURL+ "?currentPage=" + (i)+"");return false;' "; if(this.currentPage == i) {// 当前页要加粗显示 pageString .append("<strong style='color:black;border:0'>" + 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 class='pagination-next' "+nextClick+" title='下一页' href='" + this.pageURL +"?currentPage=" + (this.currentPage +1) +"'>></a> "); pageString.append("<a class='pagination-last' "+lastClick+"title='尾页' href='" + this.pageURL +"?currentPage=" + (this.getPageCount()) +"'>>></a> "); }else { pageString .append("<a class='pagination-next' >></a> "); pageString .append("<a class='pagination-last'>>></a> "); } pageString.append("<select id='pageSelect' "+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 class='pagination-first' "+firstClick+" title='首页' href='" + this.pageURL +"?currentPage=1'><<</a> "); pageString.append("<a class='pagination-prev' "+preClick+"title='上一页' href='" + this.pageURL +"?currentPage=" + (this.currentPage -1) +"'><</a> "); }else { pageString .append("<a class='pagination-first'><<</a> "); pageString .append("<a class='pagination-prev'><</a> "); } pageString.append("<span class='pageinfo'>第"+this.currentPage+"页/"+this.pageCount+"页</span>"); if(this.currentPage <this.getPageCount()) { pageString.append("<a class='pagination-next' "+nextClick+" title='下一页' href='" + this.pageURL +"?currentPage=" + (this.currentPage +1) +"'>></a> "); pageString.append("<a class='pagination-last' "+lastClick+"title='尾页' href='" + this.pageURL +"?currentPage=" + (this.getPageCount()) +"'>>></a> "); }else { pageString .append("<a class='pagination-next' >></a> "); pageString .append("<a class='pagination-last'>>></a> "); } pageString.append("<select id='pageSelect' "+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); } }); }

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