javascript ajax 仿百度分頁函數_javascript技巧

複製代碼 代碼如下:

/**
* Ajax分頁功能
* 在需要分頁的地方添加<ul class="pagination"></ol>
* 作為分頁組件容器元素。
* pageCount 總頁數
* currentPage 當前頁數
* container 帶有pagination類的ol容器元素
* loadData 用於載入資料的函數
* version 1.0
*/
pagination : function(pageCount, currentPage, container, loadData) {
this.startPage = 1;
this.endPage = pageCount;
this.minDisplayPageCount = 5;
var c = $(container);
var paginationLinks = "";
if(pageCount == 1) {
c.css({'visibility': 'hidden'});
return;
}
if(pageCount > this.minDisplayPageCount + 1) {
if(currentPage - this.minDisplayPageCount > 0) {
this.startPage = currentPage - this.minDisplayPageCount;
}
if((currentPage + this.minDisplayPageCount - 1) < pageCount) {
this.endPage = currentPage + this.minDisplayPageCount - 1;
} else {
this.endPage = pageCount;
}
}
paginationLinks += "<ul>";
if(currentPage != 1) {
paginationLinks += "<li><a id='prevpage' href='javascript:;' rel='prev'>《上一頁</a></li>";
}
for(var i = this.startPage; i <= this.endPage; i++) {
if(currentPage == i) {
paginationLinks += "<li id='page_" + currentPage + "_container'><a id='page_" + i + "' class='current' href='javascript:;'>" + currentPage + "</a></li>";
} else {
paginationLinks += "<li id='page_" + i + "_container'><a id='page_" + i + "' href='javascript:;'>" + i + "</a></li>";
}
}
if(currentPage < pageCount) {
paginationLinks += "<li><a id='nextpage' href='javascript:;' rel='next'>下一頁》</a></li>";
}
paginationLinks += "</ul>";
c.html(paginationLinks);
var links = $("#page_number ul li a");
links.each(function(index) {
if(!(this.innerHTML == "上一頁" || this.innerHTML == "下一頁")) {
$(this).click(function(event) {
alert(links[index].innerHTML);
loadData(curTaskId,"","",parseInt(links[index].innerHTML));
pagination(pageCount, parseInt(links[index].innerHTML), container, loadData);
});
}
});
var prevPage = $("#prevpage");
var nextPage = $("#nextpage");
c.css({'visibility': 'visible'});
if(prevPage) {
prevPage.click(function(event) {
loadData(curTaskId,"","",currentPage - 1);
pagination(pageCount, currentPage - 1, container, loadData);
});
}
if(nextPage) {
nextPage.click(function(event) {
loadData(curTaskId,"","",currentPage + 1);
pagination(pageCount, currentPage + 1, container, loadData);
});
}
}

loadData為載入資料的函數，這個函數需要定義一個當前頁數的參數，比如：

複製代碼 代碼如下:

var currentPage = 1;
loadExamList(currentPage){
//TODO
pagination(5,currentPage,$(ul),loadExamList);
};

5是總頁數，1是當前頁數，$(ul)是要將頁碼按鈕存放的位置，loadExamList是點擊上一頁、下一頁或者頁碼的時候調用的函數。