jquery+json实现的搜索加分页效果

1.Web 里面有三个目录:
　　1.1 content.htm　　　　//这个文件直接运行就行
　　1.2 js　　　　　　　　　 //这里面有用到的几个js 文件，其中 以db 开头的就是数据源(就是json 串)
　　1.3 css　　　　　　　　 //css 就不用说了
2. 直接运行 content.htm 就可以直接打开查看分页和搜索效果了
3. 原理很简单，只是用了javascript 的index 函数
核心代码:


代码如下:

/*
author: liulf
function:
var __db_cpcj=vCpcj;
var __db_cp=vCp;
var vCp={"cppage":[
{"cpdh":"A01000101","page":"1","ca":"1309-36-0","mc":"硫铁矿","ename":"Pyrite","bm":"黄铁矿"},
{"cpdh":"A01000201","page":"1","ca":"1309-36-0","mc":"硫精砂","ename":"Pyrite concentrate;Sulfur concentrate","bm":""},
{"cpdh":"A01000202","page":"1","ca":"1309-36-0","mc":"硫精矿粉","ename":"Powdered pyrite concentrate;Pyrites concentrate,powder;Sulfur concentrate,powder","bm":"硫精矿"},
{"cpdh":"A02000101","page":"1","ca":"","mc":"磷矿石","ename":"Phosphorus ore","bm":""},
{"cpdh":"A02000111","page":"2","ca":"","mc":"磷矿砂","ename":"Phosphorite grit","bm":""},
{"cpdh":"A02000201","page":"2","ca":"","mc":"磷矿粉","ename":"Phosphate rock powder","bm":""},
{"cpdh":"A03000101","page":"2","ca":"12447-04-0","mc":"硼矿石","ename":"Ascharite;Boric ore","bm":"硼镁矿"},
{"cpdh":"A04000101","page":"2","ca":"","mc":"钾长石","ename":"Potash feldspar;Potassium feldspars","bm":""},
{"cpdh":"A04000201","page":"2","ca":"12003-63-3","mc":"长石粉","ename":"Feldspar powder","bm":""},
{"cpdh":"A04000301","page":"2","ca":"","mc":"光卤石","ename":"Carnallite","bm":""}
]}
var vCpcj={"cjpage":[{"cjdh":"110634","cm":"拜耳光翌板材有限责任公司","pagen":"1701"},
{"cjdh":"110052","cm":"北京艾瑞斯水墨有限公司","pagen":"1701"},
{"cjdh":"110408","cm":"北京艾斯克医药技术开发有限公司","pagen":"1701"},
{"cjdh":"110010","cm":"北京爱德泰普膜制品厂","pagen":"1701"},
{"cjdh":"110165","cm":"北京安实创业科技发展有限公司","pagen":"1701"},
{"cjdh":"110134","cm":"北京安顺达装饰材料有限公司","pagen":"1701"},
{"cjdh":"110291","cm":"北京奥博星生物技术责任有限公司","pagen":"1701"},
{"cjdh":"110191","cm":"北京奥得赛化学有限公司","pagen":"1701"},
{"cjdh":"110454","cm":"北京奥克兰防水工程有限责任公司","pagen":"1701"},
{"cjdh":"110520","cm":"北京奥森特种润滑材料厂","pagen":"1701"}]}
奥森特
*/
function ObjSearch()
{
this.kw = '';
this.option = '';
this.displayId = '';
this.search = function()
{
// if(this.kw=='' || this.kw==null || this.kw.length<3)
// {
// alert('输入长度不能为小于3！');
// return;
// }
// switch(this.option)
// {
// //企业
// case '0':
// this.searchCpcj();
// break;
// //产品
// case '1':
// this.searchCp();
// break;
// }
OutputHtml(this);
}
this.searchCpcj= function()
{
var jsonObj = new Array();
var kw = this.kw;
// $('#'+this.displayId).html('');
// var displayId = this.displayId;
$(vCpcj.cjpage).each(function(index,content){
// var cjdhy = content.cjdh;
// var cm = content.cm;
// var pagen = content.pagen;
if(content.cm.indexOf(kw)!=-1)
{
// $('#'+displayId).append("<a href='#'>"+cm+" | "+pagen+"</a><br/>");
jsonObj.push({"cm":content.cm,"pagen":content.pagen});
}
});
return jsonObj;
}
this.searchCp = function()
{
var jsonObj = new Array();
var kw = this.kw;
// $('#'+this.displayId).html('');
// var displayId = this.displayId;
$.each(vCp.cppage,function(index,content){
// var cpdh = content.cpdh;
// var page = content.page;
// var ca = content.ca;
// var mc = content.mc;
// var ename = content.ename;
// var bm = content.bm;
if(content.mc.indexOf(kw)!=-1)
{
// $('#'+displayId).append("<a href='#'>"+mc+" | "+page+"</a><br/>");
jsonObj.push({"mc":content.mc,"page":content.page});
}
});
return jsonObj;
}
}

<!--//
function __$$(id){return document.getElementById(id);} //定义获取ID的方法
function GotoPage(num){ //跳转页
    Page = num;
    OutputHtml(os);
}
var PageSize = 20; //每页个数
var Page = 1; //当前页码
function OutputHtml(){
//选择的企业还是产品
var vobj = arguments[0];
    var vtmp1=vobj.option;    
    var siteList = '';
    switch(vtmp1)
    {
     //企业
     case '0':    
     siteList = os.searchCpcj();
     var obj = eval(siteList); //获取JSON
     //var sites = obj.cjpage;
     var sites = obj;
     break;
     //产品
     case '1':    
     siteList = os.searchCp();
     var obj = eval(siteList); //获取JSON
//     var sites = obj.cppage;
     var sites = obj;
     break;
    }    
    //获取分页总数
    var Pages = Math.floor((sites.length - 1) / PageSize) + 1;

if(Page < 1)Page = 1; //如果当前页码小于1
    if(Page > Pages)Page = Pages; //如果当前页码大于总数
    var Temp = "";

var BeginNO = (Page - 1) * PageSize + 1; //开始编号
    var EndNO = Page * PageSize; //结束编号
    if(EndNO > sites.length) EndNO = sites.length;
    if(EndNO == 0) BeginNO = 0;

if(!(Page <= Pages)) Page = Pages;
    __$$("total").innerHTML = "总页数:<strong class='f90'>" + sites.length + "</strong>  显示:<strong class='f90'>" + BeginNO + "-" + EndNO + "</strong>";

//分页
    if(Page > 1 && Page !== 1){Temp ="<a href='javascript:void(0)' onclick='GotoPage(1)'><<第一页</a> <a href='javascript:void(0)' onclick='GotoPage(" + (Page - 1) + ")'>上一页</a> "}else{Temp = "<<第一页 上一页 "};

//完美的翻页列表
    var PageFrontSum = 3; //当页前显示个数
    var PageBackSum = 3; //当页后显示个数

var PageFront = PageFrontSum - (Page - 1);
    var PageBack = PageBackSum - (Pages - Page);
    if(PageFront > 0 && PageBack < 0)PageBackSum += PageFront; //前少后多，前剩余空位给后
    if(PageBack > 0 && PageFront < 0)PageFrontSum += PageBack; //后少前多，后剩余空位给前
    var PageFrontBegin = Page - PageFrontSum;
    if(PageFrontBegin < 1)PageFrontBegin = 1;
    var PageFrontEnd = Page + PageBackSum;
    if(PageFrontEnd > Pages)PageFrontEnd = Pages;

if(PageFrontBegin != 1) Temp += '<a href="javascript:void(0)" onclick="GotoPage(' + (Page - 10) + ')" title="前10页">..</a>';
    for(var i = PageFrontBegin;i < Page;i ++){
        Temp += " <a href='javascript:void(0)' onclick='GotoPage(" + i + ")'>" + i + "</a>";
    }
    Temp += " <strong class='f90'>" + Page + "</strong>";
    for(var i = Page + 1;i <= PageFrontEnd;i ++){
        Temp += " <a href='javascript:void(0)' onclick='GotoPage(" + i + ")'>" + i + "</a>";
    }
    if(PageFrontEnd != Pages) Temp += " <a href='javascript:void(0)' onclick='GotoPage(" + (Page + 10) + ")' title='后10页'>..</a>";

if(Page != Pages){Temp += "  <a href='javascript:void(0)' onclick='GotoPage(" + (Page + 1) + ");'>下一页</a> <a href='javascript:void(0)' onclick='GotoPage(" + Pages + ")'>最末页>></a>"}else{Temp += "  下一页 最末页>>"}

__$$("pagelist").innerHTML = Temp;

//输出数据

if(EndNO == 0){ //如果为空
     __$$("pagelist").innerHTML='';
        __$$("content").innerHTML = "<h1>没有数据</h1>";
        return;
    }
    var html = "";

for(var i = BeginNO - 1;i < EndNO;i ++){
switch(vtmp1)
{
//企业
case "0":
html += "<a href='#' rel='bookmark' title=" +sites[i].cm+ ">";        
         html += "<p class='url'><span>" +sites[i].cm+ " | "+sites[i].pagen +"</span></p></a>";        
break;
//产品
case "1":
// if(sites[i].mc.indexOf(vobj.kw)==-1) continue;
html += "<a href='#' rel='bookmark' title=" +sites[i].mc+ ">";        
         html += "<p class='url'><span>" +sites[i].mc+ " | "+sites[i].page +"</span></p></a>";        
break;
}
    }
    __$$("content").innerHTML = html;
    clickShow(); //调用鼠标点击事件

//键盘左右键翻页
    document.onkeydown=function(e){
        var theEvent = window.event || e;
        var code = theEvent.keyCode || theEvent.which;
        if(code==37){
            if(Page > 1 && Page !== 1){
                GotoPage(Page - 1);

}
        }
        if(code==39){
            if(Page != Pages){
                GotoPage(Page + 1);
            }
        }
    }

//鼠标滚轮翻页
function handle(delta){
    if (delta > 0){
        if(Page > 1 && Page !== 1){
            GotoPage(Page - 1);
        }        
    }
    else{
        if(Page != Pages){
            GotoPage(Page + 1);
        }
    }
}
function wheel(event){
    var delta = 0;
    if (!event) /* For IE. */
        event = window.event;
    if (event.wheelDelta) { /* IE或者Opera. */
        delta = event.wheelDelta / 120;
        /** 在Opera9中，事件处理不同于IE
        */
    if (window.opera)
        delta = -delta;
    } else if (event.detail) { /** 兼容Mozilla. */
    /** In Mozilla, sign of delta is different than in IE.
    * Also, delta is multiple of 3.
    */
    delta = -event.detail / 3;
    }
    /** 如果 增量不等于0则触发
    * 主要功能为测试滚轮向上滚或者是向下
    */
    if (delta)
        handle(delta);
}
/** 初始化 */
if (window.addEventListener)
    /** Mozilla的基于DOM的滚轮事件 **/
    window.addEventListener("DOMMouseScroll", wheel, false);
    /** IE/Opera. */
    window.onmousewheel = document.onmousewheel = wheel;

}
//获取链接地址和网站名称
function showLink(source){
    var siteUrl = __$$("siteurl");
    var siteName = __$$("sitename");
    var description = __$$("description");

if(source.getAttribute("rel") == "bookmark"){
        var url = source.getAttribute("href");
        var title = source.getAttribute("title");
        siteUrl.innerHTML = "<a href='" + url + "' target='_blank'>"+ url +"</a>";
        siteName.innerHTML = title;
    }

}
//鼠标点击事件
function clickShow(){
    var links = __$$("content").getElementsByTagName("a");
    for(var i=0; i<links.length; i++){
        var url = links[i].getAttribute("href");    
        var title = links[i].getAttribute("title");
        links[i].onclick = function(){
//            showLink(this);
            return false;
        }
    }
}
//-->

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