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=" οnclick='ajaxpage(""+this.pageURL+ "?currentPage=" + (this.currentPage + 1)+"");return false;' ";
String preClick=" οnclick='ajaxpage(""+this.pageURL+ "?currentPage=" + (this.currentPage - 1)+"");return false;' ";
String firstClick=" οnclick='ajaxpage(""+this.pageURL+ "?currentPage=1");return false;' ";
String lastClick=" οnclick='ajaxpage(""+this.pageURL+ "?currentPage=" + (this.getPageCount())+"");return false;' ";
String onChange=" οnchange='ajaxpage(""+this.pageURL+ "?currentPage=" + (1)+"");return false;' ";
StringBuffer pageString =new StringBuffer();
pageString.append("");
// 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(" 1 ");
}else {
if(this.currentPage >1) {// 如果当前页数大于1，<< <可用
pageString.append("<< ");
pageString.append("< ");
}else {
pageString
.append("<< ");
pageString
.append("< ");
}
// 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=" οnclick='ajaxpage(""+this.pageURL+ "?currentPage=" + (i)+"");return false;' ";
if(this.currentPage == i) {// 当前页要加粗显示
pageString
.append(""
+ i +" ");
}else {
pageString.append("" + i +" ");
}
}
// 如果当前页小于总页数，> >>可用
if(this.currentPage > ");
pageString.append(">> ");
}else {
pageString
.append("> ");
pageString
.append(">> ");
}
pageString.append("");
}
}else if("normalStyle".equalsIgnoreCase(this.pageStyle)) {
if(this.getPageCount() ==1) {
pageString.append(" 共1页 ");
}else {
if(this.currentPage >1) {
pageString.append("<< ");
pageString.append("< ");
}else {
pageString
.append("<< ");
pageString
.append("< ");
}
pageString.append("第"+this.currentPage+"页/"+this.pageCount+"页");
if(this.currentPage > ");
pageString.append(">> ");
}else {
pageString
.append("> ");
pageString
.append(">> ");
}
pageString.append("");
}
}
pageString.append(" ");
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("");
break;
case20:
sb.append("");
break;
case30:
sb.append("");
break;
case50:
sb.append("");
break;
case100:
sb.append("");
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
*/
.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;
}/**
** 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);
}
});
}