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廢話不多說，先上效果圖：

點擊導出，實現

點擊導出

統計完成之後

點擊確定

下面來談談實現的思路：

前面導出操作簡單，從第二個導出操作開始：

點擊"確定"調用exportCsv函數

復制代碼 代碼如下:
<a class="on" href="javascript:exportCsv();"><em>導出</em></a>

exportCvs函數如下
function exportCsv()
{

　//清除等待的轉動圈
    $('#loading').html('');

 //彈出統計總數對話框，函數在後面給出定義
    tip();

//ajax請求總數
    $.post("<?php echo WEB_URL;?>/index.php?q=onlinesea/getwherecount"+search_uri, function(json){
        var return_arr = eval('(' + json + ')');
        var num = return_arr['total'];
        var processnum = return_arr['processnum'];

        if(num == 0){
            poptip.title('系統消息');
            poptip.content('查詢結果為空，不能進行數據導出');
        }
        else
        {
            poptip.close();

            for (var i in return_arr['cntarr']){
                if (return_arr['cntarr'][i] != 0){
                    count_arr[i] = return_arr['cntarr'][i];
                }

            }
            var ii=0;
            for (var i in count_arr){
                  type_arr[ii]=i;
                  ii++;
            }

　　//當數據不為空的時候彈出是否到處框
            exportCsvConfirm(num, processnum);
        }
    });
}

//彈出確認下載  exportCsvConfirm函數

function exportCsvConfirm(num, processnum)
{
    var msg = '需要導出的數據有 <span style="color: red">' + num + '</span> 行，可能會占用您較多時間來進行導出。<br />您還需要繼續嗎？';

   // 提示是否繼續
    $.dialog.confirm(msg, function () {
        $('#loading').html('');
        processed_count = 0;
        index = 1;
        win.$('#process_bg').hide().width('0%').show();
        win.$('#process_num').html('0');

        $.dialog.through({
            title: '數據導出進度',
            content: win.document.getElementById('processbar'),
            lock: true,
            opacity: '.1'
        },
        function(){
                window.location.reload();
        });
       //當繼續的時候
        win.$('#progress_info').show().text('正在導出數據，請耐心等待，請勿關閉窗口...');
      //開始執行導出操作
        excel_export2(num, processnum);
    });
}

關鍵函數excel_export2隊列請求，首先會在前面定義全局變量

復制代碼 代碼如下:
var search_uri = "<?php echo $uri;?>";
var event = "<?php echo $event;?>";
var processed_count = 0;    // 已處理的數據條數
var index = 1;
var iii   = 0;
var ajaxmark = 1;
var win = $.dialog.parent;    // 頂層頁面window對象
var count_arr = new Array(<?php echo count($this->tables);?>);
var type_arr = new Array();

我們要定義全局變量  index   和iii ，ajaxmark  ,index主要用於對一個表數據太多的時候進行分批導出 ，iii用來控制隊列循環，ajaxmark用來判斷前一個請求是否執行成功了，成功的話在執行下面的請求

復制代碼 代碼如下:
function excel_export2(num, processnum){
      //獲取tabletype
      tabletype=type_arr[iii];

     //獲取總數
      num = count_arr[tabletype];

    //判斷是否數組是否執行完畢
      if(typeof(tabletype)=='undefined'&&typeof(num)=='undefined'){
            return false;
      }

     //判斷是否有上一個ajax請求是否完成
      if(ajaxmark==1){

            index = 1;
           //將ajax請求標記為未執行完成

　　　　ajaxmark=2;

          //執行ajax請求，函數在後面給出
            retrun_var = excel_export_ajax(index, num, processnum, tabletype);
            //判斷函數返回
            if(typeof(retrun_var)=='undefined'){           

　　　　　　//將iii自增，執行下一個數組數據
                  iii++;

　　　　　　//遞歸調用自己
                  excel_export2(num, processnum);
                  if(iii>100){
                        return false;
                  }

　　　　//當ajax返回成功的時候，返回。
            }else if(retrun_var=='success'){
                  return false;
            }
            return false;
      }else{
            //setTimeout(excel_export2(num, processnum),3000);
            //setInterval(_excel_export2(num, processnum),3000);

　　　　//每隔3秒檢查是否ajax請求結束，這裡settimeout 不能傳遞參數，只能通過_excel_export2這種形式
            setTimeout(_excel_export2(num, processnum),3000);
      }
}

function _excel_export2(num, processnum){
       return function(){
             excel_export2(num, processnum);
       }
}

//excel_export_ajax函數  執行導出
/* AJAX，遞歸調用 */
function excel_export_ajax(index, num, processnum, tabletype)
{
    $.ajax({
        url: "<?php echo WEB_URL;?>/index.php?q=onlinesea/exportcsv"+search_uri+"/index/"+index+ "/total/" + num + '/tabletype/' + tabletype,
        type: 'GET',
        success: function(data)
        {

　　　　//執行次數自增
            ++processed_count;

　　　　//當一個表數據太多，分批導出
            ++index;
            // 更新進度條
　　　　//判斷進度
            var process_num = parseInt((processed_count / processnum) * 100);
　　　　
            if (process_num >= 100)
            {
                process_num = 100;
            }

　　　　//跟新進度條
            update_process(process_num);
            //alert(processed_count+'--'+processnum);

　　　　//當執行結束
            if (processed_count >= processnum)
            {

　　　　　　//壓縮文件
                backup_compress();

                return 'success';
            }
            if (data == '0'){

　　　　　　//將ajax請求標記為執行完畢，執行下一個url請求
                ajaxmark=1;
                return false;
            }
            當一個表的數據未導出完成的時候，會循環調用自己去請求， php函數或判斷是否到處完成，導出完成返回0  ，未完成返回1
            excel_export_ajax(index, num, processnum, tabletype);
        }
    });
}

/* 備份文件執行壓縮 */
function backup_compress()
{
    win.$('#progress_info').text('正在生成壓縮文件...');

    $.ajax({
        url: "<?php echo WEB_URL;?>/index.php?q=onlinesea/compress/event/<?php echo $event;?>",
        success: function(msg){
            win.$('#process_bg').show().width('100%');
            win.$('#process_num').html('100');
            win.$('#progress_info').html('導出數據完成。  <a href="' + msg + '" style="color: #006699; text-decoration: underline">下載文件</a>');
        }
    });
}

/* 更新進度條 */
function update_process(process_num)
{
    win.$('#process_bg').show().width(process_num + '%');
    win.$('#process_num').html(process_num);
}

下面附上源碼，咳咳相關php程序大家自己腦補下吧

復制代碼 代碼如下:
<script type="text/javascript" language="javascript">
var search_uri = "<?php echo $uri;?>";
var event = "<?php echo $event;?>";
var processed_count = 0;    // 已處理的數據條數
var index = 1;
var iii   = 0;
var ajaxmark = 1;
var win = $.dialog.parent;    // 頂層頁面window對象
var count_arr = new Array(<?php echo count($this->tables);?>);
var type_arr = new Array();
function exportCsv()
{
    $('#loading').html('');
    tip();
    $.post("<?php echo WEB_URL;?>/index.php?q=onlinesea/getwherecount"+search_uri, function(json){
        var return_arr = eval('(' + json + ')');
        var num = return_arr['total'];
        var processnum = return_arr['processnum'];

        if(num == 0){
            poptip.title('系統消息');
            poptip.content('查詢結果為空，不能進行數據導出');
        }
        else
        {
            poptip.close();

            for (var i in return_arr['cntarr']){
                if (return_arr['cntarr'][i] != 0){
                    count_arr[i] = return_arr['cntarr'][i];
                }

            }
            var ii=0;
            for (var i in count_arr){
                  type_arr[ii]=i;
                  ii++;
            }
            exportCsvConfirm(num, processnum);
        }
    });
}

function exportCsvConfirm(num, processnum)
{
    var msg = '需要導出的數據有 <span style="color: red">' + num + '</span> 行，可能會占用您較多時間來進行導出。<br />您還需要繼續嗎？';
    $.dialog.confirm(msg, function () {
        $('#loading').html('');
        processed_count = 0;
        index = 1;
        win.$('#process_bg').hide().width('0%').show();
        win.$('#process_num').html('0');

        $.dialog.through({
            title: '數據導出進度',
            content: win.document.getElementById('processbar'),
            lock: true,
            opacity: '.1'
        },
        function(){
                window.location.reload();
        });

        win.$('#progress_info').show().text('正在導出數據，請耐心等待，請勿關閉窗口...');

        excel_export2(num, processnum);
    });
}

function excel_export2(num, processnum){

      tabletype=type_arr[iii];
      num = count_arr[tabletype];
      if(typeof(tabletype)=='undefined'&&typeof(num)=='undefined'){
            return false;
      }
      if(ajaxmark==1){

            index = 1;
            ajaxmark=2;
            retrun_var = excel_export_ajax(index, num, processnum, tabletype);

            if(typeof(retrun_var)=='undefined'){           
                  iii++;
                  excel_export2(num, processnum);
                  if(iii>100){
                        return false;
                  }
            }else if(retrun_var=='success'){
                  return false;
            }
            return false;
      }else{
            //setTimeout(excel_export2(num, processnum),3000);
            //setInterval(_excel_export2(num, processnum),3000);
            setTimeout(_excel_export2(num, processnum),3000);
      }
}
function _excel_export2(num, processnum){
       return function(){
             excel_export2(num, processnum);
       }
}
/* 執行導出 */
function excel_export(num, processnum){
    var retrun_var = 'ss';
    for (var i in count_arr){
        num = count_arr[i];
        tabletype = i;
        index = 1;
        retrun_var = excel_export_ajax(index, num, processnum, tabletype);

        if(typeof(retrun_var)=='undefined'){
            //alert('xxxx');
            setTimeout(function(){exit;},5000);
        }
        if (retrun_var == 'success')
        {
            return false;
        }
    }

    return false;
}

/* AJAX，遞歸調用 */
function excel_export_ajax(index, num, processnum, tabletype)
{
    $.ajax({
        url: "<?php echo WEB_URL;?>/index.php?q=onlinesea/exportcsv"+search_uri+"/index/"+index+ "/total/" + num + '/tabletype/' + tabletype,
        type: 'GET',
        success: function(data)
        {
            ++processed_count;
            ++index;
            // 更新進度條

            var process_num = parseInt((processed_count / processnum) * 100);

            if (process_num >= 100)
            {
                process_num = 100;
            }
            update_process(process_num);
            //alert(processed_count+'--'+processnum);
            if (processed_count >= processnum)
            {
                backup_compress();

                return 'success';
            }
            if (data == '0'){
                ajaxmark=1;
                return false;
            }

            excel_export_ajax(index, num, processnum, tabletype);
        }
    });
}

/* 更新進度條 */
function update_process(process_num)
{
    win.$('#process_bg').show().width(process_num + '%');
    win.$('#process_num').html(process_num);
}

/* 備份文件執行壓縮 */
function backup_compress()
{
    win.$('#progress_info').text('正在生成壓縮文件...');

    $.ajax({
        url: "<?php echo WEB_URL;?>/index.php?q=onlinesea/compress/event/<?php echo $event;?>",
        success: function(msg){
            win.$('#process_bg').show().width('100%');
            win.$('#process_num').html('100');
            win.$('#progress_info').html('導出數據完成。  <a href="' + msg + '" style="color: #006699; text-decoration: underline">下載文件</a>');
        }
    });
}
function tip()
{
    poptip = $.dialog.through({
        id: 'tip',
        title: '系統消息',
        content: '正在統計總數，請勿關閉窗口  <img src="http://images.cnblogs.com/loading_s.gif" />',
        width: 300,
        height: 100,
        icon: 'system',
        lock: true,
        opacity: .1
    },
    function(){
        window.location.reload();
    });

    poptip.show();
}

function packetDelete(url,msg)
{
    $.dialog.confirm(msg, function () {
        $.post(url, function(data){
          if(data == '1'){
              $.dialog('刪除成功', function(){window.location.reload();});
          }
          else if(data == '2'){
            $.dialog('刪除失敗', function(){window.location.reload();});
          }
          else if(data == '3'){
            $.dialog('文件不存在，或者已刪除', function(){window.location.reload();});
          }
      });
     });
}
</script>