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

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 name="blackList" class="blackAction" method="blackList">
 <!--plaintext用于显示页面原始代码的结果类型-->
 <result type="plainText">
 <param name="charSet">UTF-8</param>
 <param name="location">/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 class="li-tag"></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 class='col1'><input type='checkbox' value='"+parseInt(j + 1)+"'/></span>")
 .append("<span class='col2'>" + parseInt(j + 1)
 + "</span>").append("<span class='col3'>" + dataRoot[j].mobile
 + "</span>").append("<span class='col4'>" + dataRoot[j].province
 + "</span>").append("<span class='col5'>" + dataRoot[j].gateway
 + "</span>").append("<span class='col6'>" + dataRoot[j].insertTime
 + "</span>").append("<span class='col7'>" + 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 class='col1'><input type='checkbox' value='"+parseInt(j + 1)+"'/></span>")
 .append("<span class='col2'>" + parseInt(j + 1)
 + "</span>").append("<span class='col3'>" + dataRoot[j].mobile
 + "</span>").append("<span class='col4'>" + dataRoot[j].province
 + "</span>").append("<span class='col5'>" + dataRoot[j].gateway
 + "</span>").append("<span class='col6'>" + dataRoot[j].insertTime
 + "</span>").append("<span class='col7'>" + 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=" 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: #54F1; 
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: #54F1; 
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: #54F1;
}
 
[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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